What USDA hardiness zone is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD?

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD spans USDA hardiness zones 6b to 8a. 60% of its ZIP codes are zone 7b, so there is no single zone for the metro.

Place guide

Planting zones in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

Q: When is the last spring frost in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD?

The median last spring freeze runs March 30 – April 29 across the 41 NOAA weather stations serving Philadelphia-Camden-Wilmington, PA-NJ-DE-MD, from NOAA 1991-2020 Climate Normals. Half of years freeze later than the median.

This metro spans USDA zones 6b to 8a, so there is no single zone for Philadelphia-Camden-Wilmington, PA-NJ-DE-MD and anyone who gives you one is rounding. 60% of its ZIP codes are zone 7b; the rest are not.

USDA zones 6b–8a 4 zones across 376 ZIP codes

ZIP codes 376 376 have a NOAA station within range

Weather stations 41 NOAA 1991–2020 normals, across 4,603 sq mi

Your ZIP code

Get the exact answer for your address

Everything above describes Philadelphia-Camden-Wilmington, PA-NJ-DE-MD as a whole. Hardiness zones and freeze dates are published per ZIP code, so yours is exact — enter it and this page will tell you your zone, which NOAA station it comes from and how far away that station is.

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD does not have one planting answer

Its own weather stations disagree about 15 of the 32 crops in this table right now, so any single list would be wrong for part of the metro area. That is not a gap in the data — it is what the data says.

Shortest season: 169 days
INDIAN MILLS 2 W, NJ US (USC00284229)
Longest season: 232 days
PHILA FRANKLIN INST, PA US (USC00366886)

63 days of growing season separate those two stations, and both serve ZIP codes in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD. The ZIP lookup above answers for one address instead of averaging a place that has no average.

Why the hardiness zone does not settle this

A USDA zone is a winter-minimum statistic. It was never a growing-season one, and it does not behave like one: within a single zone the growing season runs a median 54 days wider at the 10th–90th percentile, and annual growing degree days vary by 2.02×.

The zones also overlap rather than stack — 30% of zone 6b freezes before the median zone 6a station. The zone tells you what survives your winter; the station tells you what finishes before your autumn.

The whole dataset behind that →

All 41 stations agreeAt least one station

Every one of the 41 NOAA stations serving this metro area counts April 29 – October 14 as growing season (168 days). Widening to any single station gives March 30 – November 17 (232 days).

That is a 64-day difference inside one metro area — which is why this page gives ranges rather than a single planting date. The ZIP lookup above resolves it to one station.

Which zone you are in depends where you are

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD covers 4 hardiness zones. A guide that gives the metro one zone has picked whichever is largest and rounded everyone else into it — which is fine for the 60% in zone 7b and wrong for the other 40%. Here is the actual split.

Zone	ZIP codes	Share
7b	224	60%
7a	144	38%
6b	5	1%
8a	3	1%

Zones are published per ZIP code, so yours is exact even though the metro's is not. The hardiness tool will tell you which one you are in.

Your freeze dates

Last spring freeze March 30 – April 29

First fall freeze October 14 – November 17

Those are the earliest and latest medians among the 41 stations serving this metro — not an average, and not one station standing in for the rest. Half of years freeze later than a station's own median.

The spread is the point. Even in a metro that is one hardiness zone throughout, its stations disagree about the last spring freeze. Hardiness zone and frost date measure different things — a zone is the average annual coldest night, a freeze date is when the season turns — and a place can be uniform in one and varied in the other. Use the tools below with your own ZIP rather than the ends of this range.

Your growing season

NOAA publishes a growing-season length for each station, and across the 41 stations serving Philadelphia-Camden-Wilmington, PA-NJ-DE-MD it runs 169–232 days . That figure is published, not computed from the two freeze dates — subtracting one from the other gives the wrong answer wherever a season crosses New Year. Mean summer high (June–August) runs 81–87 °F , below the 90 °F point where cool-season crops reliably bolt. Summer rain over the same months runs 11.8–15.1" across those 38 stations, against the rough inch a week — about 13 inches over the same 92 days — that a vegetable garden is usually reckoned to want. At the middle station that is covered, so watering in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD is for the gaps between storms rather than the whole season. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 84 °F summer afternoon drying the soil faster than a cool one.

When to start seeds in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

Every spring job for 63 crop dates, counted from this metro's own last spring freeze. Each is a range across all 41 stations — the earliest and latest that job falls anywhere in the metro — because no one station speaks for the whole area.

Crop	Job	When	Offset
Green Onions	Start indoors	February 2 – March 4	8 weeks before
Peppers	Start indoors	February 2 – March 4	8 weeks before
Broccoli	Start indoors	February 16 – March 18	6 weeks before
Cabbage	Start indoors	February 16 – March 18	6 weeks before
Collards	Start indoors	February 16 – March 18	6 weeks before
Kale	Start indoors	February 16 – March 18	6 weeks before
Leaf Lettuce	Start indoors	February 16 – March 18	6 weeks before
Peas	Direct sow	February 16 – March 18	6 weeks before
Spinach	Direct sow	February 16 – March 18	6 weeks before
Sweet Potato	Start indoors	February 16 – March 18	6 weeks before
Tomatoes	Start indoors	February 16 – March 18	6 weeks before
Bok Choy	Start indoors	February 23 – March 25	5 weeks before
Kohlrabi	Start indoors	February 23 – March 25	5 weeks before
Swiss Chard	Start indoors	February 23 – March 25	5 weeks before
Arugula	Direct sow	March 2 – April 1	4 weeks before
Baby Salad Greens	Direct sow	March 2 – April 1	4 weeks before
Beets	Direct sow	March 2 – April 1	4 weeks before
Green Onions	Direct sow	March 2 – April 1	4 weeks before
Mustard Greens	Direct sow	March 2 – April 1	4 weeks before
Okra	Start indoors	March 2 – April 1	4 weeks before
Radishes	Direct sow	March 2 – April 1	4 weeks before
Turnips	Direct sow	March 2 – April 1	4 weeks before
Cabbage	Set out	March 9 – April 8	3 weeks before
Carrots	Direct sow	March 9 – April 8	3 weeks before
Collards	Direct sow	March 9 – April 8	3 weeks before
Collards	Set out	March 9 – April 8	3 weeks before
Cucumbers	Start indoors	March 9 – April 8	3 weeks before
Green Onions	Set out	March 9 – April 8	3 weeks before
Kale	Direct sow	March 9 – April 8	3 weeks before
Kale	Set out	March 9 – April 8	3 weeks before
Kohlrabi	Direct sow	March 9 – April 8	3 weeks before
Kohlrabi	Set out	March 9 – April 8	3 weeks before
Leaf Lettuce	Direct sow	March 9 – April 8	3 weeks before
Pumpkins	Start indoors	March 9 – April 8	3 weeks before
Summer Squash	Start indoors	March 9 – April 8	3 weeks before
Winter Squash	Start indoors	March 9 – April 8	3 weeks before
Zucchini	Start indoors	March 9 – April 8	3 weeks before
Bok Choy	Direct sow	March 16 – April 15	2 weeks before
Bok Choy	Set out	March 16 – April 15	2 weeks before
Broccoli	Set out	March 16 – April 15	2 weeks before
Cilantro	Direct sow	March 16 – April 15	2 weeks before
Leaf Lettuce	Set out	March 16 – April 15	2 weeks before
Swiss Chard	Direct sow	March 16 – April 15	2 weeks before
Swiss Chard	Set out	March 16 – April 15	2 weeks before
Dill	Direct sow	March 23 – April 22	1 week before
Bush Beans	Direct sow	April 6 – May 6	1 week after
Cucumbers	Set out	April 6 – May 6	1 week after
Pumpkins	Direct sow	April 6 – May 6	1 week after
Pumpkins	Set out	April 6 – May 6	1 week after
Summer Squash	Direct sow	April 6 – May 6	1 week after
Summer Squash	Set out	April 6 – May 6	1 week after
Sweet Corn	Direct sow	April 6 – May 6	1 week after
Tomatoes	Set out	April 6 – May 6	1 week after
Winter Squash	Direct sow	April 6 – May 6	1 week after
Winter Squash	Set out	April 6 – May 6	1 week after
Zucchini	Direct sow	April 6 – May 6	1 week after
Zucchini	Set out	April 6 – May 6	1 week after
Cucumbers	Direct sow	April 13 – May 13	2 weeks after
Okra	Direct sow	April 13 – May 13	2 weeks after
Okra	Set out	April 13 – May 13	2 weeks after
Peppers	Set out	April 13 – May 13	2 weeks after
Southern Peas	Direct sow	April 13 – May 13	2 weeks after
Sweet Potato	Set out	April 13 – May 13	2 weeks after

The week offsets are conventional extension guidance and vary by variety; the freeze dates they are counted from are measured. For a single date rather than a range, run when do I start my seeds? with your own ZIP code.

What survives the winter changes across Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

Of 74 perennial fruits, nuts, berries, vegetables and herbs, 58 come through the winter in zone 7a and only 51 in zone 6b. That is a different garden at each end of the same metro.

Zone	ZIPs	Survive	Fail for being too warm
6b	5	51 of 74	0
7a	144	58 of 74	1
7b	224	56 of 74	3
8a	3	57 of 74	8

The last column is the counterintuitive one, and it is why the totals do not simply rise as the winters get milder. Most temperate fruit needs a documented number of hours below about 45 °F to break dormancy and set a crop, so an apple fails in a winter that is too warm; currants and rhubarb cook in the summer heat that comes with it. See the full list with reasons.

Cautious — shortens the seasonMedian across stationsOptimistic

Last spring freeze: Plan to May 16 to be careful. Median March 30 – April 29 across 41 stations; March 15 is the optimistic end.
First fall freeze: Plan to October 1 to be careful. Median October 14 – November 17 across 41 stations; December 4 is the optimistic end.

NOAA publishes these as probabilities, not averages — the middle figure is a median, so half of years fall either side of it. The cautious end is the 10% tail: in roughly nine years in ten the freeze falls on the safe side of it.

The 41 stations behind these numbers

All 41 NOAA stations whose normals this page quotes, spanning about 158 km north to south. Every one is named with its identifier in the station list below — this page does not single one out, because no one station speaks for a whole metro area.

A relative sketch, not a map with a projection: longitude is adjusted for latitude so the shape is not stretched, and there is no basemap. For the one station nearest a specific address, with its real distance, use the ZIP lookup above.

Every figure above comes from these, and each is named so you can check it. Which station serves a given ZIP code, and how far away it is, varies across the metro — the table below gives it per ZIP code rather than this page averaging it.

Station	NOAA ID	Last spring freeze	First fall freeze	Season
Aberdeen Phillips FLD, MD	USW00013701	April 10	October 30	201 days
Atlantic City INTL AP, NJ	USW00093730	April 18	October 29	190 days
Avondale 2 N, PA	USW00003761	April 19	October 26	189 days
Bucksville, PA	USC00361080	April 29	October 16	170 days
Chestertown, MD	USC00181750	April 3	November 5	217 days
Coatesville 2 W, PA	USC00361591	April 19	October 25	190 days
Conowingo Dam, MD	USC00182060	April 3	November 6	217 days
Dover, DE	USC00072730	April 4	November 4	214 days
Doylestown AP, PA	USW00054786	April 13	October 30	198 days
Glassboro 2 NE, NJ	USC00283291	April 8	November 1	205 days
Glenmoore, PA	USC00363321	April 11	November 1	205 days
Graterford 1 E, PA	USC00363437	April 24	October 15	173 days
Hammonton 1 NE, NJ	USC00283662	April 14	October 27	196 days
Hopewell Morgantown, PA	USC00364076	April 16	October 27	193 days
Indian Mills 2 W, NJ	USC00284229	April 28	October 15	169 days
Lambertville, NJ	USC00284635	April 16	October 19	185 days
Marcus Hook, PA	USC00365390	March 30	November 16	230 days
Moorestown, NJ	USC00285728	April 12	November 1	200 days
Mt Holly S Jersey AP, NJ	USW00093780	April 15	October 28	195 days
Neshaminy Falls, PA	USC00366194	April 21	October 25	185 days
Newark Ag Farm, DE	USC00076410	April 7	November 2	208 days
Norristown, PA	USC00366370	April 8	October 31	203 days
Octoraro Lake, PA	USC00366508	April 26	October 22	179 days
Pennsauken 1N, NJ	USC00286864	April 15	October 31	199 days
Phila Franklin Inst, PA	USC00366886	March 30	November 17	232 days
Philadelphia INTL AP, PA	USW00013739	April 2	November 10	224 days
Philadelphia NE AP, PA	USW00094732	April 4	November 7	216 days
Philadelphia/Mt Holly Wfo, NJ	USC00286964	April 15	October 29	196 days
Phoenixville 1 E, PA	USC00366927	April 18	October 27	192 days
Pottstown Limerick AP, PA	USW00054782	April 20	October 23	186 days
Rodale Rsch Ctr, PA	USC00367578	April 26	October 14	171 days
Seabrook Farms, NJ	USC00287936	April 10	November 1	205 days
Sellersville, PA	USC00367938	April 26	October 17	175 days
Springtown 1 Nne, PA	USC00368400	April 21	October 22	184 days
Trenton Mercer Co AP, NJ	USW00014792	April 10	November 1	202 days
Trenton State College, NJ	USC00288880	April 17	October 28	192 days
W Chester 2 NW, PA	USC00369464	April 26	October 18	174 days
Willow Grove Nas, PA	USW00014793	April 11	November 1	205 days
Wilmington New Castle Co AP, DE	USW00013781	April 7	November 1	209 days
Wilmington Porter Rsch, DE	USC00079605	April 7	November 4	209 days
Woodstown Pittsgrov 4E, NJ	USC00289910	April 11	November 3	206 days

These are medians, not averages — NOAA publishes freeze dates as a probability distribution, and half of years freeze later than the date shown.

Every ZIP code in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

Zones are published per ZIP code, not per metro area, so this is the exact answer rather than the metro area's average. The station column is the nearest one to that ZIP code's centroid and how far away it is — the same figure the tools use, shown here so you can see which ZIP codes are well covered and which are reaching.

ZIP code	USDA zone	Nearest NOAA station	Distance
08001	7b	Seabrook Farms, NJ	12.8 km
08002	7b	Pennsauken 1N, NJ	3.5 km
08003	7b	Moorestown, NJ	7.3 km
08004	7a	Indian Mills 2 W, NJ	6.5 km
08007	7b	Pennsauken 1N, NJ	11.6 km
08009	7a	Indian Mills 2 W, NJ	13.7 km
08010	7b	Philadelphia NE AP, PA	8.5 km
08011	7b	Philadelphia/Mt Holly Wfo, NJ	9.8 km
08012	7b	Glassboro 2 NE, NJ	6.3 km
08014	8a	Marcus Hook, PA	5.4 km
08015	7a	Indian Mills 2 W, NJ	25.0 km
08016	7b	Philadelphia/Mt Holly Wfo, NJ	6.2 km
08019	7a	Indian Mills 2 W, NJ	21.7 km
08020	7b	Philadelphia INTL AP, PA	8.3 km
08021	7b	Glassboro 2 NE, NJ	11.3 km
08022	7a	Philadelphia/Mt Holly Wfo, NJ	11.2 km
08023	7b	Wilmington New Castle Co AP, DE	9.1 km
08026	7b	Moorestown, NJ	13.1 km
08027	7b	Philadelphia INTL AP, PA	7.0 km
08028	7b	Glassboro 2 NE, NJ	5.5 km
08029	7b	Glassboro 2 NE, NJ	11.9 km
08030	7b	Phila Franklin Inst, PA	9.0 km
08031	7b	Philadelphia INTL AP, PA	11.6 km
08033	7b	Pennsauken 1N, NJ	8.3 km
08034	7b	Moorestown, NJ	5.6 km
08035	7b	Pennsauken 1N, NJ	10.4 km
08036	7b	Mt Holly S Jersey AP, NJ	3.2 km
08038	7b	Seabrook Farms, NJ	23.3 km
08039	7b	Glassboro 2 NE, NJ	16.5 km
08041	7b	Philadelphia/Mt Holly Wfo, NJ	11.7 km
08042	7b	Philadelphia/Mt Holly Wfo, NJ	13.2 km
08043	7b	Moorestown, NJ	11.5 km
08045	7b	Moorestown, NJ	10.6 km
08046	7b	Philadelphia/Mt Holly Wfo, NJ	6.1 km
08048	7b	Mt Holly S Jersey AP, NJ	3.3 km
08049	7b	Moorestown, NJ	12.2 km
08051	7b	Glassboro 2 NE, NJ	8.7 km
08052	7b	Moorestown, NJ	2.2 km
08053	7b	Mt Holly S Jersey AP, NJ	11.5 km
08054	7b	Mt Holly S Jersey AP, NJ	5.0 km
08055	7a	Indian Mills 2 W, NJ	7.9 km
08056	7b	Philadelphia INTL AP, PA	9.6 km
08057	7b	Moorestown, NJ	4.0 km
08059	7b	Phila Franklin Inst, PA	10.7 km
08060	7b	Philadelphia/Mt Holly Wfo, NJ	2.2 km
08061	7b	Philadelphia INTL AP, PA	8.0 km
08062	7b	Glassboro 2 NE, NJ	10.8 km
08063	7b	Philadelphia INTL AP, PA	3.9 km
08064	7a	Philadelphia/Mt Holly Wfo, NJ	19.1 km
08065	7b	Pennsauken 1N, NJ	4.2 km
08066	7b	Philadelphia INTL AP, PA	3.7 km
08067	7b	Marcus Hook, PA	9.7 km
08068	7a	Philadelphia/Mt Holly Wfo, NJ	14.2 km
08069	7b	Wilmington Porter Rsch, DE	11.0 km
08070	7b	Wilmington New Castle Co AP, DE	9.4 km
08071	7b	Glassboro 2 NE, NJ	3.4 km
08072	7b	Seabrook Farms, NJ	17.7 km
08073	7b	Philadelphia/Mt Holly Wfo, NJ	4.2 km
08074	7b	Glassboro 2 NE, NJ	6.2 km
08075	7b	Philadelphia NE AP, PA	7.9 km
08077	7b	Pennsauken 1N, NJ	4.6 km
08078	7b	Glassboro 2 NE, NJ	13.2 km
08079	7b	Seabrook Farms, NJ	19.2 km
08080	7b	Glassboro 2 NE, NJ	3.3 km
08081	7a	Glassboro 2 NE, NJ	10.2 km
08083	7b	Glassboro 2 NE, NJ	13.0 km
08084	7b	Glassboro 2 NE, NJ	12.4 km
08085	7b	Marcus Hook, PA	11.5 km
08086	7b	Philadelphia INTL AP, PA	4.3 km
08088	7a	Indian Mills 2 W, NJ	8.4 km
08089	7a	Hammonton 1 NE, NJ	8.0 km
08090	7b	Glassboro 2 NE, NJ	8.3 km
08091	7a	Indian Mills 2 W, NJ	12.3 km
08093	7b	Philadelphia INTL AP, PA	8.4 km
08094	7a	Hammonton 1 NE, NJ	13.3 km
08095	7a	Hammonton 1 NE, NJ	4.6 km
08096	7b	Philadelphia INTL AP, PA	9.7 km
08097	7b	Philadelphia INTL AP, PA	9.2 km
08098	7b	Woodstown Pittsgrov 4E, NJ	17.6 km
08102	7b	Phila Franklin Inst, PA	4.5 km
08103	7b	Phila Franklin Inst, PA	5.7 km
08104	7b	Phila Franklin Inst, PA	7.0 km
08105	7b	Pennsauken 1N, NJ	6.6 km
08106	7b	Pennsauken 1N, NJ	9.4 km
08107	7b	Pennsauken 1N, NJ	8.3 km
08108	7b	Pennsauken 1N, NJ	6.6 km
08109	7b	Pennsauken 1N, NJ	3.0 km
08110	7b	Pennsauken 1N, NJ	3.1 km
08224	7a	Atlantic City INTL AP, NJ	18.7 km
08312	7b	Glassboro 2 NE, NJ	8.3 km
08318	7b	Woodstown Pittsgrov 4E, NJ	1.7 km
08322	7b	Woodstown Pittsgrov 4E, NJ	12.3 km
08328	7b	Woodstown Pittsgrov 4E, NJ	10.0 km
08343	7b	Woodstown Pittsgrov 4E, NJ	10.0 km
08344	7a	Woodstown Pittsgrov 4E, NJ	15.4 km
08505	7a	Philadelphia/Mt Holly Wfo, NJ	16.5 km
08511	7a	Philadelphia/Mt Holly Wfo, NJ	23.2 km
08515	7a	Philadelphia/Mt Holly Wfo, NJ	17.6 km
08518	7b	Philadelphia/Mt Holly Wfo, NJ	11.4 km
08554	7a	Philadelphia/Mt Holly Wfo, NJ	11.5 km
08562	7a	Philadelphia/Mt Holly Wfo, NJ	19.9 km
08640	7a	Philadelphia/Mt Holly Wfo, NJ	20.7 km
08641	7a	Philadelphia/Mt Holly Wfo, NJ	19.6 km
18041	7a	Sellersville, PA	18.2 km
18054	7a	Sellersville, PA	10.7 km
18070	7a	Rodale Rsch Ctr, PA	20.5 km
18073	7a	Sellersville, PA	14.1 km
18074	7a	Pottstown Limerick AP, PA	9.4 km
18076	7a	Sellersville, PA	14.4 km
18077	7a	Springtown 1 Nne, PA	3.5 km
18081	7a	Springtown 1 Nne, PA	0.9 km
18901	7a	Doylestown AP, PA	3.7 km
18902	7a	Doylestown AP, PA	3.3 km
18912	7a	Doylestown AP, PA	5.2 km
18913	7a	Doylestown AP, PA	7.3 km
18914	7a	Doylestown AP, PA	8.7 km
18915	7a	Sellersville, PA	10.4 km
18917	7a	Doylestown AP, PA	7.9 km
18920	7a	Bucksville, PA	10.0 km
18921	6b	Bucksville, PA	4.3 km
18923	7a	Doylestown AP, PA	4.6 km
18925	7a	Doylestown AP, PA	7.2 km
18927	7a	Sellersville, PA	7.0 km
18929	7a	Doylestown AP, PA	8.8 km
18930	6b	Bucksville, PA	3.6 km
18932	7a	Sellersville, PA	8.9 km
18933	7a	Lambertville, NJ	9.3 km
18935	7a	Sellersville, PA	11.1 km
18936	7a	Willow Grove Nas, PA	7.3 km
18938	7a	Lambertville, NJ	4.6 km
18940	7a	Trenton Mercer Co AP, NJ	10.4 km
18942	6b	Bucksville, PA	4.3 km
18944	7a	Sellersville, PA	8.3 km
18946	7a	Lambertville, NJ	9.6 km
18947	7a	Doylestown AP, PA	10.3 km
18950	7a	Doylestown AP, PA	12.6 km
18951	7a	Sellersville, PA	11.9 km
18954	7a	Neshaminy Falls, PA	9.2 km
18955	6b	Bucksville, PA	9.3 km
18960	7a	Sellersville, PA	1.6 km
18962	7a	Sellersville, PA	3.8 km
18964	7a	Sellersville, PA	6.1 km
18966	7a	Neshaminy Falls, PA	6.6 km
18969	7a	Sellersville, PA	5.7 km
18970	7a	Sellersville, PA	8.5 km
18972	6b	Bucksville, PA	7.4 km
18974	7a	Willow Grove Nas, PA	6.8 km
18976	7a	Willow Grove Nas, PA	5.5 km
18977	7b	Trenton Mercer Co AP, NJ	5.0 km
18980	7a	Lambertville, NJ	11.2 km
19001	7b	Willow Grove Nas, PA	8.4 km
19002	7a	Willow Grove Nas, PA	5.8 km
19003	7b	Phila Franklin Inst, PA	11.7 km
19004	7b	Phila Franklin Inst, PA	7.6 km
19006	7b	Philadelphia NE AP, PA	6.6 km
19007	7b	Neshaminy Falls, PA	8.9 km
19008	7b	Norristown, PA	15.2 km
19009	7b	Philadelphia NE AP, PA	7.6 km
19010	7b	Norristown, PA	9.6 km
19012	7b	Philadelphia NE AP, PA	8.4 km
19013	7b	Marcus Hook, PA	5.1 km
19014	7b	Marcus Hook, PA	4.4 km
19015	7b	Marcus Hook, PA	5.6 km
19017	7b	Marcus Hook, PA	7.9 km
19018	7b	Philadelphia INTL AP, PA	8.4 km
19020	7b	Neshaminy Falls, PA	5.6 km
19021	7b	Neshaminy Falls, PA	8.3 km
19022	8a	Marcus Hook, PA	8.5 km
19023	7b	Philadelphia INTL AP, PA	6.2 km
19025	7b	Willow Grove Nas, PA	6.2 km
19026	7b	Philadelphia INTL AP, PA	11.0 km
19027	7b	Philadelphia NE AP, PA	9.7 km
19029	7b	Philadelphia INTL AP, PA	5.3 km
19030	7a	Trenton State College, NJ	10.6 km
19031	7b	Norristown, PA	10.2 km
19032	7b	Philadelphia INTL AP, PA	4.4 km
19033	7b	Philadelphia INTL AP, PA	8.7 km
19034	7b	Willow Grove Nas, PA	9.0 km
19035	7b	Norristown, PA	8.2 km
19036	7b	Philadelphia INTL AP, PA	6.6 km
19038	7b	Willow Grove Nas, PA	10.7 km
19040	7a	Willow Grove Nas, PA	4.5 km
19041	7b	Norristown, PA	11.8 km
19043	7b	Philadelphia INTL AP, PA	7.5 km
19044	7a	Willow Grove Nas, PA	1.2 km
19046	7b	Philadelphia NE AP, PA	8.3 km
19047	7a	Neshaminy Falls, PA	5.0 km
19050	7b	Phila Franklin Inst, PA	8.1 km
19052	7b	Marcus Hook, PA	8.1 km
19053	7a	Neshaminy Falls, PA	2.0 km
19054	7a	Trenton State College, NJ	11.4 km
19055	7b	Neshaminy Falls, PA	9.7 km
19056	7a	Neshaminy Falls, PA	5.8 km
19057	7b	Neshaminy Falls, PA	8.1 km
19060	7b	Marcus Hook, PA	6.1 km
19061	7b	Marcus Hook, PA	0.4 km
19063	7b	Marcus Hook, PA	10.8 km
19064	7b	Philadelphia INTL AP, PA	11.6 km
19066	7b	Phila Franklin Inst, PA	8.1 km
19067	7a	Trenton Mercer Co AP, NJ	6.4 km
19070	7b	Philadelphia INTL AP, PA	9.0 km
19072	7b	Phila Franklin Inst, PA	10.3 km
19073	7a	Norristown, PA	16.1 km
19074	7b	Philadelphia INTL AP, PA	5.9 km
19075	7b	Willow Grove Nas, PA	10.1 km
19076	7b	Philadelphia INTL AP, PA	6.8 km
19078	8a	Philadelphia INTL AP, PA	7.7 km
19079	7b	Philadelphia INTL AP, PA	4.8 km
19081	7b	Philadelphia INTL AP, PA	10.5 km
19082	7b	Phila Franklin Inst, PA	8.3 km
19083	7b	Phila Franklin Inst, PA	12.0 km
19085	7a	Norristown, PA	8.2 km
19086	7b	Marcus Hook, PA	8.8 km
19087	7a	Norristown, PA	7.6 km
19090	7b	Willow Grove Nas, PA	6.2 km
19094	7b	Marcus Hook, PA	8.9 km
19095	7b	Philadelphia NE AP, PA	11.9 km
19096	7b	Phila Franklin Inst, PA	9.7 km
19102	7b	Phila Franklin Inst, PA	0.9 km
19103	7b	Phila Franklin Inst, PA	0.6 km
19104	7b	Phila Franklin Inst, PA	2.2 km
19106	7b	Phila Franklin Inst, PA	2.9 km
19107	7b	Phila Franklin Inst, PA	1.4 km
19108	7b	Phila Franklin Inst, PA	1.0 km
19109	7b	Phila Franklin Inst, PA	1.3 km
19111	7b	Philadelphia NE AP, PA	6.3 km
19112	7b	Philadelphia INTL AP, PA	5.8 km
19113	7b	Philadelphia INTL AP, PA	3.6 km
19114	7b	Philadelphia NE AP, PA	1.7 km
19115	7b	Philadelphia NE AP, PA	2.9 km
19116	7b	Philadelphia NE AP, PA	4.0 km
19118	7b	Norristown, PA	11.4 km
19119	7b	Phila Franklin Inst, PA	10.6 km
19120	7b	Phila Franklin Inst, PA	9.6 km
19121	7b	Phila Franklin Inst, PA	2.7 km
19122	7b	Phila Franklin Inst, PA	3.1 km
19123	7b	Phila Franklin Inst, PA	2.4 km
19124	7b	Pennsauken 1N, NJ	8.5 km
19125	7b	Phila Franklin Inst, PA	4.6 km
19126	7b	Philadelphia NE AP, PA	11.1 km
19127	7b	Phila Franklin Inst, PA	9.1 km
19128	7b	Phila Franklin Inst, PA	11.2 km
19129	7b	Phila Franklin Inst, PA	6.1 km
19130	7b	Phila Franklin Inst, PA	1.0 km
19131	7b	Phila Franklin Inst, PA	5.1 km
19132	7b	Phila Franklin Inst, PA	4.3 km
19133	7b	Phila Franklin Inst, PA	4.7 km
19134	7b	Phila Franklin Inst, PA	6.4 km
19135	7b	Pennsauken 1N, NJ	6.7 km
19136	7b	Philadelphia NE AP, PA	4.7 km
19137	7b	Pennsauken 1N, NJ	5.2 km
19138	7b	Phila Franklin Inst, PA	10.9 km
19139	7b	Phila Franklin Inst, PA	5.0 km
19140	7b	Phila Franklin Inst, PA	6.4 km
19141	7b	Phila Franklin Inst, PA	9.1 km
19142	7b	Philadelphia INTL AP, PA	5.9 km
19143	7b	Phila Franklin Inst, PA	4.9 km
19144	7b	Phila Franklin Inst, PA	8.2 km
19145	7b	Phila Franklin Inst, PA	5.1 km
19146	7b	Phila Franklin Inst, PA	2.3 km
19147	7b	Phila Franklin Inst, PA	2.9 km
19148	7b	Phila Franklin Inst, PA	5.5 km
19149	7b	Philadelphia NE AP, PA	6.7 km
19150	7b	Phila Franklin Inst, PA	12.7 km
19151	7b	Phila Franklin Inst, PA	7.5 km
19152	7b	Philadelphia NE AP, PA	3.8 km
19153	7b	Philadelphia INTL AP, PA	1.4 km
19154	7b	Philadelphia NE AP, PA	2.9 km
19301	7a	Phoenixville 1 E, PA	9.1 km
19310	7a	Coatesville 2 W, PA	11.1 km
19311	7a	Avondale 2 N, PA	4.4 km
19312	7a	Phoenixville 1 E, PA	10.5 km
19316	7a	Coatesville 2 W, PA	8.0 km
19317	7a	Wilmington Porter Rsch, DE	11.2 km
19319	7a	W Chester 2 NW, PA	10.6 km
19320	7a	Coatesville 2 W, PA	3.4 km
19330	7a	Avondale 2 N, PA	10.9 km
19333	7a	Norristown, PA	10.5 km
19335	7a	Glenmoore, PA	8.6 km
19341	7a	W Chester 2 NW, PA	7.7 km
19342	7a	Marcus Hook, PA	11.0 km
19343	7a	Glenmoore, PA	0.6 km
19344	7a	Hopewell Morgantown, PA	8.4 km
19345	7a	W Chester 2 NW, PA	8.6 km
19348	7a	Avondale 2 N, PA	5.7 km
19350	7a	Avondale 2 N, PA	11.0 km
19352	7a	Avondale 2 N, PA	12.1 km
19355	7a	Phoenixville 1 E, PA	8.9 km
19358	7a	Coatesville 2 W, PA	5.0 km
19362	7a	Octoraro Lake, PA	5.5 km
19363	7a	Octoraro Lake, PA	6.6 km
19365	7a	Coatesville 2 W, PA	5.9 km
19367	7a	Coatesville 2 W, PA	3.2 km
19369	7a	Coatesville 2 W, PA	3.0 km
19372	7a	Coatesville 2 W, PA	8.9 km
19373	7a	W Chester 2 NW, PA	11.6 km
19374	7a	Avondale 2 N, PA	4.5 km
19375	7a	Avondale 2 N, PA	6.2 km
19380	7a	W Chester 2 NW, PA	3.3 km
19382	7a	W Chester 2 NW, PA	5.1 km
19383	7a	W Chester 2 NW, PA	4.5 km
19390	7a	Avondale 2 N, PA	5.4 km
19401	7a	Norristown, PA	2.3 km
19403	7a	Norristown, PA	5.6 km
19405	7b	Norristown, PA	1.1 km
19406	7a	Norristown, PA	4.5 km
19422	7a	Norristown, PA	7.2 km
19425	7a	Glenmoore, PA	9.2 km
19426	7a	Graterford 1 E, PA	4.6 km
19428	7b	Norristown, PA	4.4 km
19435	7a	Pottstown Limerick AP, PA	10.0 km
19436	7a	Willow Grove Nas, PA	8.4 km
19437	7a	Willow Grove Nas, PA	9.6 km
19438	7a	Graterford 1 E, PA	5.3 km
19440	7a	Sellersville, PA	8.0 km
19442	7a	Phoenixville 1 E, PA	7.3 km
19444	7b	Norristown, PA	7.5 km
19446	7a	Graterford 1 E, PA	10.2 km
19453	7a	Phoenixville 1 E, PA	2.0 km
19454	7a	Willow Grove Nas, PA	8.5 km
19457	7a	Pottstown Limerick AP, PA	4.3 km
19460	7a	Phoenixville 1 E, PA	3.1 km
19462	7b	Norristown, PA	4.7 km
19464	7a	Pottstown Limerick AP, PA	5.5 km
19465	7a	Glenmoore, PA	11.9 km
19468	7a	Pottstown Limerick AP, PA	4.0 km
19472	7a	Pottstown Limerick AP, PA	11.5 km
19473	7a	Graterford 1 E, PA	5.8 km
19474	7a	Graterford 1 E, PA	1.7 km
19475	7a	Pottstown Limerick AP, PA	8.2 km
19490	7a	Graterford 1 E, PA	7.0 km
19492	7a	Pottstown Limerick AP, PA	7.3 km
19520	7a	Hopewell Morgantown, PA	7.2 km
19525	7a	Pottstown Limerick AP, PA	8.2 km
19701	7b	Newark Ag Farm, DE	10.3 km
19702	7b	Newark Ag Farm, DE	5.7 km
19703	7b	Marcus Hook, PA	3.4 km
19706	7b	Wilmington New Castle Co AP, DE	10.9 km
19707	7a	Avondale 2 N, PA	12.0 km
19709	7b	Newark Ag Farm, DE	20.2 km
19710	7b	Wilmington Porter Rsch, DE	4.1 km
19711	7b	Newark Ag Farm, DE	5.1 km
19713	7b	Newark Ag Farm, DE	3.0 km
19716	7b	Newark Ag Farm, DE	0.1 km
19717	7b	Newark Ag Farm, DE	1.2 km
19720	7b	Wilmington New Castle Co AP, DE	3.1 km
19730	7b	Wilmington New Castle Co AP, DE	24.8 km
19731	7b	Wilmington New Castle Co AP, DE	18.2 km
19732	7b	Wilmington Porter Rsch, DE	4.1 km
19734	7b	Dover, DE	29.1 km
19735	7b	Wilmington Porter Rsch, DE	6.0 km
19801	7b	Wilmington Porter Rsch, DE	5.6 km
19802	7b	Wilmington Porter Rsch, DE	2.5 km
19803	7b	Wilmington Porter Rsch, DE	2.9 km
19804	7b	Wilmington New Castle Co AP, DE	5.4 km
19805	7b	Wilmington Porter Rsch, DE	5.5 km
19806	7b	Wilmington Porter Rsch, DE	2.3 km
19807	7b	Wilmington Porter Rsch, DE	6.6 km
19808	7b	Wilmington New Castle Co AP, DE	9.2 km
19809	7b	Wilmington Porter Rsch, DE	3.9 km
19810	7b	Wilmington Porter Rsch, DE	5.8 km
21901	7b	Conowingo Dam, MD	19.6 km
21902	7b	Aberdeen Phillips FLD, MD	12.8 km
21903	7b	Conowingo Dam, MD	14.3 km
21904	7a	Conowingo Dam, MD	10.2 km
21911	7a	Octoraro Lake, PA	11.2 km
21912	7b	Newark Ag Farm, DE	28.4 km
21913	7b	Aberdeen Phillips FLD, MD	26.5 km
21914	7b	Conowingo Dam, MD	18.6 km
21915	7b	Newark Ag Farm, DE	21.1 km
21917	7a	Conowingo Dam, MD	6.9 km
21918	7a	Conowingo Dam, MD	2.5 km
21919	7b	Aberdeen Phillips FLD, MD	21.1 km
21920	7a	Newark Ag Farm, DE	8.3 km
21921	7b	Newark Ag Farm, DE	10.8 km
21930	7b	Chestertown, MD	22.2 km

ZIP-code positions are area centroids, so a large rural ZIP code's listed distance is measured from the middle of its area rather than from any particular address in it.

Your own ZIP

Work out your own dates

Each of these takes a ZIP code and answers for that ZIP alone, citing the station it used and how far away it is. There is a ZIP box in the header of every page.

What survives my winter?
Runs on the hardiness zone, so it answers for all of Philadelphia-Camden-Wilmington, PA-NJ-DE-MD at once — zone across 74 perennial fruits, berries, vegetables and herbs.
When do I start my seeds?
Dates every spring job from your own last freeze — sow indoors, set out, direct sow.
When do I sow the next round?
How often each crop is worth re-sowing, and when the next sowing is due.
What can I still plant?
Counts the growing days left before your first fall freeze, crop by crop.

Other places to compare

Gardening in Pennsylvania — zones 5b– 8a covers the whole state: how its 1,793 ZIP codes divide between 6 hardiness zones, and the freeze dates across every NOAA station in it.

Other metro areas in PA:

Pittsburgh, PA Zones 6a–7a
Allentown-Bethlehem-Easton, PA-NJ Zones 6a–7a
Scranton--Wilkes-Barre, PA Zones 6a–7a
Harrisburg-Carlisle, PA Zones 6b–7a
Lancaster, PA Zone 7a
Reading, PA Zones 6b–7a
Johnstown, PA Zones 6a–6b
York-Hanover, PA Zones 6b–7a
Erie, PA Zones 6a–7a
State College, PA Zones 6a–6b
Chambersburg, PA Zones 6b–7b
Williamsport, PA Zones 6a–6b

All 388 metro areas, by state

Gear

If you want to act on this

Each link opens an Amazon search rather than a product we picked. We have not tested these and do not rank them — the search is the honest version, and you choose.

Row cover and frost clothThe season here closes at the first fall freeze dated above — a cover buys back some of those days at the end.
MulchFor the perennials nearest their cold limit in zone 6b, where an insulated crown is what decides whether they come back.

As an Amazon Associate we earn from qualifying purchases. That costs you nothing extra, and it buys no influence over anything on this site: the dates come from NOAA normals and the zones from the USDA, and no product affects either.

Sources

Where these numbers come from

The hardiness zone is the USDA 2023 Plant Hardiness Zone Map, published per ZIP code by PRISM at Oregon State. The freeze dates are NOAA's 1991–2020 Climate Normals, read from every station whose normals cover a ZIP code in this metro. Nothing here is estimated, and no station stands in for another.

This page names no single station on purpose. Picking one to represent a metro sounds reasonable and is not: the station serving the most ZIP codes is an artifact of where ZIP centroids happen to fall, and it selects a lock on the Monongahela for Pittsburgh and a far southern suburb for Chicago. A range across every station is true; a single cited date for a whole metro is not.

All metro areas