What USDA hardiness zone is Pittsburgh, PA?

Pittsburgh, PA spans USDA hardiness zones 6a to 7a. 82% of its ZIP codes are zone 6b, so there is no single zone for the metro.

When is the last spring frost in Pittsburgh, PA?

The median last spring freeze runs April 5 – May 19 across the 41 NOAA weather stations serving Pittsburgh, PA, from NOAA 1991-2020 Climate Normals. Half of years freeze later than the median.

Place guide

Planting zones in Pittsburgh, PA

This metro spans USDA zones 6a to 7a, so there is no single zone for Pittsburgh, PA and anyone who gives you one is rounding. 82% of its ZIP codes are zone 6b; the rest are not.

USDA zones 6a–7a 3 zones across 374 ZIP codes

ZIP codes 374 374 have a NOAA station within range

Weather stations 41 NOAA 1991–2020 normals, across 5,640 sq mi

Your ZIP code

Get the exact answer for your address

Everything above describes Pittsburgh, PA 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.

Pittsburgh, PA does not have one planting answer

Its own weather stations disagree about 12 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: 135 days
CHALK HILL 2 ENE, PA US (USC00361350)
Longest season: 219 days
BRADDOCK LOCK 2, PA US (USC00360861)

84 days of growing season separate those two stations, and both serve ZIP codes in Pittsburgh, PA. 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 May 19 – October 1 as growing season (135 days). Widening to any single station gives April 5 – November 10 (219 days).

That is a 84-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

Pittsburgh, PA covers 3 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 82% in zone 6b and wrong for the other 18%. Here is the actual split.

Zone	ZIP codes	Share
6b	305	82%
6a	58	16%
7a	11	3%

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 April 5 – May 19

First fall freeze October 1 – November 10

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 Pittsburgh, PA it runs 135–219 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 75–84 °F , below the 90 °F point where cool-season crops reliably bolt. Summer rain over the same months runs 10.4–14.9" across those 40 stations, against the rough inch a week — about 13 inches over the same 92 days — that a vegetable garden is usually reckoned to want. The middle station covers about 96% of it, so expect to make up the rest. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 82 °F summer afternoon drying the soil faster than a cool one.

When to start seeds in Pittsburgh, PA

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 8 – March 24	8 weeks before
Peppers	Start indoors	February 8 – March 24	8 weeks before
Broccoli	Start indoors	February 22 – April 7	6 weeks before
Cabbage	Start indoors	February 22 – April 7	6 weeks before
Collards	Start indoors	February 22 – April 7	6 weeks before
Kale	Start indoors	February 22 – April 7	6 weeks before
Leaf Lettuce	Start indoors	February 22 – April 7	6 weeks before
Peas	Direct sow	February 22 – April 7	6 weeks before
Spinach	Direct sow	February 22 – April 7	6 weeks before
Sweet Potato	Start indoors	February 22 – April 7	6 weeks before
Tomatoes	Start indoors	February 22 – April 7	6 weeks before
Bok Choy	Start indoors	March 1 – April 14	5 weeks before
Kohlrabi	Start indoors	March 1 – April 14	5 weeks before
Swiss Chard	Start indoors	March 1 – April 14	5 weeks before
Arugula	Direct sow	March 8 – April 21	4 weeks before
Baby Salad Greens	Direct sow	March 8 – April 21	4 weeks before
Beets	Direct sow	March 8 – April 21	4 weeks before
Green Onions	Direct sow	March 8 – April 21	4 weeks before
Mustard Greens	Direct sow	March 8 – April 21	4 weeks before
Okra	Start indoors	March 8 – April 21	4 weeks before
Radishes	Direct sow	March 8 – April 21	4 weeks before
Turnips	Direct sow	March 8 – April 21	4 weeks before
Cabbage	Set out	March 15 – April 28	3 weeks before
Carrots	Direct sow	March 15 – April 28	3 weeks before
Collards	Direct sow	March 15 – April 28	3 weeks before
Collards	Set out	March 15 – April 28	3 weeks before
Cucumbers	Start indoors	March 15 – April 28	3 weeks before
Green Onions	Set out	March 15 – April 28	3 weeks before
Kale	Direct sow	March 15 – April 28	3 weeks before
Kale	Set out	March 15 – April 28	3 weeks before
Kohlrabi	Direct sow	March 15 – April 28	3 weeks before
Kohlrabi	Set out	March 15 – April 28	3 weeks before
Leaf Lettuce	Direct sow	March 15 – April 28	3 weeks before
Pumpkins	Start indoors	March 15 – April 28	3 weeks before
Summer Squash	Start indoors	March 15 – April 28	3 weeks before
Winter Squash	Start indoors	March 15 – April 28	3 weeks before
Zucchini	Start indoors	March 15 – April 28	3 weeks before
Bok Choy	Direct sow	March 22 – May 5	2 weeks before
Bok Choy	Set out	March 22 – May 5	2 weeks before
Broccoli	Set out	March 22 – May 5	2 weeks before
Cilantro	Direct sow	March 22 – May 5	2 weeks before
Leaf Lettuce	Set out	March 22 – May 5	2 weeks before
Swiss Chard	Direct sow	March 22 – May 5	2 weeks before
Swiss Chard	Set out	March 22 – May 5	2 weeks before
Dill	Direct sow	March 29 – May 12	1 week before
Bush Beans	Direct sow	April 12 – May 26	1 week after
Cucumbers	Set out	April 12 – May 26	1 week after
Pumpkins	Direct sow	April 12 – May 26	1 week after
Pumpkins	Set out	April 12 – May 26	1 week after
Summer Squash	Direct sow	April 12 – May 26	1 week after
Summer Squash	Set out	April 12 – May 26	1 week after
Sweet Corn	Direct sow	April 12 – May 26	1 week after
Tomatoes	Set out	April 12 – May 26	1 week after
Winter Squash	Direct sow	April 12 – May 26	1 week after
Winter Squash	Set out	April 12 – May 26	1 week after
Zucchini	Direct sow	April 12 – May 26	1 week after
Zucchini	Set out	April 12 – May 26	1 week after
Cucumbers	Direct sow	April 19 – June 2	2 weeks after
Okra	Direct sow	April 19 – June 2	2 weeks after
Okra	Set out	April 19 – June 2	2 weeks after
Peppers	Set out	April 19 – June 2	2 weeks after
Southern Peas	Direct sow	April 19 – June 2	2 weeks after
Sweet Potato	Set out	April 19 – June 2	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 Pittsburgh, PA

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

Zone	ZIPs	Survive	Fail for being too warm
6a	58	51 of 74	0
6b	305	51 of 74	0
7a	11	58 of 74	1

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 June 2 to be careful. Median April 5 – May 19 across 41 stations; March 22 is the optimistic end.
First fall freeze: Plan to September 18 to be careful. Median October 1 – November 10 across 41 stations; November 27 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 167 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
Acmetonia Lock 3, PA	USC00360022	April 16	November 1	197 days
Beaver Falls 1 NE, PA	USC00360475	April 27	October 25	178 days
Braddock Lock 2, PA	USC00360861	April 5	November 10	219 days
Butler 2 SW, PA	USC00361139	May 7	October 14	159 days
Chalk Hill 2 Ene, PA	USC00361350	May 19	October 1	135 days
Charleroi Lock 4, PA	USC00361377	April 13	November 5	205 days
Confluence 1 SW Dam, PA	USC00361705	April 30	October 18	171 days
Connellsville 2 Ssw, PA	USC00361726	April 22	October 27	187 days
Donegal 2 NW, PA	USC00362183	April 30	October 17	170 days
Donora 1 SW, PA	USC00362190	April 27	October 22	177 days
Emsworth L/D Ohio Rvr, PA	USC00362574	April 24	October 27	186 days
Ford City 4 S Dam, PA	USC00362942	May 4	October 16	164 days
Glenwillard Dashields L&D, PA	USC00363343	April 8	November 8	212 days
Grays Landing, PA	USC00363451	April 28	October 21	175 days
Hidden Valley, PA	USC00363928	May 2	October 17	168 days
Lake Lynn, WV	USC00465002	April 25	October 24	181 days
Laurel Mtn, PA	USC00364836	April 26	October 17	172 days
Loyalhanna Lake, PA	USC00365212	May 2	October 14	163 days
Mckeesport, PA	USC00365573	May 2	October 20	170 days
Mercer, PA	USC00365651	May 15	October 3	140 days
Montgomery L&D, PA	USC00365902	April 28	October 26	178 days
Moon Twp, PA	USC00365918	April 28	October 18	172 days
Mt Pleasant, PA	USC00366042	May 1	October 13	164 days
Murrysville 2 SW, PA	USC00366111	April 22	October 25	186 days
Natrona Lock 4, PA	USC00366151	April 16	November 2	199 days
New Castle 1 N, PA	USC00366233	April 30	October 23	175 days
New Cumberland L/D, WV	USC00466442	April 22	October 28	186 days
Pittsburgh Allegheny Co AP, PA	USW00014762	April 18	October 28	193 days
Pittsburgh INTL AP, PA	USW00094823	April 23	October 23	181 days
Pt Marion Lock 8, PA	USC00367073	April 30	October 23	177 days
Putneyville 2 SE Dam, PA	USC00367229	May 10	October 12	155 days
Rector 3 Ssw, PA	USC00367338	May 5	October 6	152 days
Salina 3 W, PA	USC00367782	April 29	October 20	171 days
Schenley Lock 5, PA	USC00367863	April 21	October 30	190 days
Slippery Rock 1 Ssw, PA	USC00368184	May 7	October 14	158 days
Steubenville, OH	USC00338025	April 29	October 20	175 days
Uniontown 1 NE, PA	USC00369050	April 30	October 18	171 days
Washington 3 NE, PA	USC00369318	April 24	October 23	181 days
Waynesburg 1 E, PA	USC00369367	May 3	October 15	164 days
Wheeling Ohio Co AP, WV	USW00014894	April 23	October 25	185 days
Wheeling, WV	USC00469482	April 20	October 29	192 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 Pittsburgh, PA

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
15001	6b	Montgomery L&D, PA	7.9 km
15003	6b	Glenwillard Dashields L&D, PA	6.2 km
15004	6b	Steubenville, OH	21.1 km
15005	6b	Glenwillard Dashields L&D, PA	10.7 km
15006	6b	Acmetonia Lock 3, PA	12.0 km
15007	6b	Acmetonia Lock 3, PA	16.1 km
15009	6b	Montgomery L&D, PA	5.9 km
15010	6b	Beaver Falls 1 NE, PA	3.3 km
15012	6b	Donora 1 SW, PA	4.9 km
15014	6b	Natrona Lock 4, PA	2.0 km
15015	6b	Glenwillard Dashields L&D, PA	14.3 km
15017	6b	Pittsburgh INTL AP, PA	16.8 km
15018	6b	Mckeesport, PA	8.3 km
15019	6b	Pittsburgh INTL AP, PA	13.0 km
15020	6b	Donora 1 SW, PA	9.9 km
15021	6b	Steubenville, OH	15.9 km
15022	6b	Charleroi Lock 4, PA	4.2 km
15024	6b	Acmetonia Lock 3, PA	6.1 km
15025	6b	Pittsburgh Allegheny Co AP, PA	6.4 km
15026	6b	Moon Twp, PA	12.2 km
15027	6b	Beaver Falls 1 NE, PA	12.4 km
15028	6b	Mckeesport, PA	7.1 km
15030	6b	Natrona Lock 4, PA	5.9 km
15033	6b	Donora 1 SW, PA	1.9 km
15034	6b	Pittsburgh Allegheny Co AP, PA	2.7 km
15035	6b	Braddock Lock 2, PA	4.5 km
15037	6b	Mckeesport, PA	9.0 km
15038	6b	Donora 1 SW, PA	10.8 km
15042	6b	Beaver Falls 1 NE, PA	12.2 km
15043	6b	New Cumberland L/D, WV	12.1 km
15044	6b	Acmetonia Lock 3, PA	15.9 km
15045	6b	Mckeesport, PA	2.6 km
15046	7a	Glenwillard Dashields L&D, PA	2.1 km
15049	6b	Acmetonia Lock 3, PA	2.4 km
15050	6b	Montgomery L&D, PA	10.7 km
15051	6b	Acmetonia Lock 3, PA	5.2 km
15052	6b	Montgomery L&D, PA	4.0 km
15054	6b	Steubenville, OH	19.6 km
15055	6b	Washington 3 NE, PA	15.2 km
15056	7a	Glenwillard Dashields L&D, PA	1.9 km
15057	6b	Pittsburgh INTL AP, PA	14.5 km
15059	6b	Montgomery L&D, PA	10.8 km
15060	6b	Pittsburgh INTL AP, PA	14.2 km
15061	6b	Montgomery L&D, PA	6.8 km
15062	6b	Charleroi Lock 4, PA	1.4 km
15063	6b	Charleroi Lock 4, PA	5.3 km
15064	6b	Pittsburgh INTL AP, PA	15.4 km
15065	6b	Natrona Lock 4, PA	3.4 km
15066	6b	Beaver Falls 1 NE, PA	5.1 km
15067	6b	Charleroi Lock 4, PA	8.6 km
15068	6b	Natrona Lock 4, PA	6.4 km
15071	6b	Pittsburgh INTL AP, PA	8.0 km
15072	6b	Donora 1 SW, PA	2.9 km
15074	6b	Beaver Falls 1 NE, PA	9.4 km
15075	6b	Acmetonia Lock 3, PA	5.7 km
15076	6b	Acmetonia Lock 3, PA	8.4 km
15077	6b	Montgomery L&D, PA	3.6 km
15078	6b	Pittsburgh INTL AP, PA	20.1 km
15081	6b	Glenwillard Dashields L&D, PA	3.9 km
15082	6b	Pittsburgh INTL AP, PA	11.6 km
15083	6b	Mckeesport, PA	10.8 km
15084	6b	Natrona Lock 4, PA	7.3 km
15085	6b	Murrysville 2 SW, PA	3.0 km
15086	6b	Glenwillard Dashields L&D, PA	16.2 km
15087	6b	Donora 1 SW, PA	3.6 km
15088	6b	Mckeesport, PA	8.2 km
15089	6b	Donora 1 SW, PA	12.3 km
15090	6b	Emsworth L/D Ohio Rvr, PA	13.5 km
15101	6b	Acmetonia Lock 3, PA	12.8 km
15102	6b	Pittsburgh Allegheny Co AP, PA	10.5 km
15104	6b	Braddock Lock 2, PA	1.4 km
15106	6b	Emsworth L/D Ohio Rvr, PA	10.8 km
15108	6b	Pittsburgh INTL AP, PA	2.1 km
15110	6b	Braddock Lock 2, PA	2.2 km
15112	6b	Braddock Lock 2, PA	2.4 km
15116	6b	Acmetonia Lock 3, PA	10.1 km
15120	6b	Braddock Lock 2, PA	4.1 km
15122	6b	Pittsburgh Allegheny Co AP, PA	2.3 km
15123	6b	Pittsburgh Allegheny Co AP, PA	1.3 km
15126	6b	Pittsburgh INTL AP, PA	6.7 km
15129	6b	Pittsburgh Allegheny Co AP, PA	9.2 km
15131	6b	Mckeesport, PA	5.4 km
15132	6b	Mckeesport, PA	1.5 km
15133	6b	Mckeesport, PA	1.5 km
15135	6b	Mckeesport, PA	6.0 km
15136	6b	Emsworth L/D Ohio Rvr, PA	4.8 km
15137	6b	Braddock Lock 2, PA	4.6 km
15139	6b	Acmetonia Lock 3, PA	2.3 km
15140	6b	Murrysville 2 SW, PA	4.6 km
15142	6b	Pittsburgh INTL AP, PA	13.6 km
15143	6b	Glenwillard Dashields L&D, PA	5.4 km
15144	6b	Acmetonia Lock 3, PA	3.0 km
15145	6b	Braddock Lock 2, PA	4.0 km
15146	6b	Murrysville 2 SW, PA	3.6 km
15147	6b	Acmetonia Lock 3, PA	4.5 km
15148	6b	Braddock Lock 2, PA	5.4 km
15201	7a	Acmetonia Lock 3, PA	12.2 km
15202	6b	Emsworth L/D Ohio Rvr, PA	1.5 km
15203	7a	Pittsburgh Allegheny Co AP, PA	9.1 km
15204	7a	Emsworth L/D Ohio Rvr, PA	5.8 km
15205	6b	Emsworth L/D Ohio Rvr, PA	7.5 km
15206	6b	Braddock Lock 2, PA	10.0 km
15207	6b	Pittsburgh Allegheny Co AP, PA	5.1 km
15208	6b	Braddock Lock 2, PA	7.7 km
15209	6b	Emsworth L/D Ohio Rvr, PA	10.1 km
15210	6b	Pittsburgh Allegheny Co AP, PA	7.9 km
15211	6b	Emsworth L/D Ohio Rvr, PA	10.3 km
15212	6b	Emsworth L/D Ohio Rvr, PA	9.6 km
15213	6b	Pittsburgh Allegheny Co AP, PA	9.7 km
15214	6b	Emsworth L/D Ohio Rvr, PA	6.6 km
15215	6b	Acmetonia Lock 3, PA	9.1 km
15216	6b	Pittsburgh Allegheny Co AP, PA	11.0 km
15217	6b	Braddock Lock 2, PA	6.7 km
15218	6b	Braddock Lock 2, PA	4.4 km
15219	6b	Pittsburgh Allegheny Co AP, PA	11.1 km
15220	6b	Emsworth L/D Ohio Rvr, PA	10.1 km
15221	6b	Braddock Lock 2, PA	4.9 km
15222	7a	Emsworth L/D Ohio Rvr, PA	10.3 km
15223	6b	Emsworth L/D Ohio Rvr, PA	11.7 km
15224	6b	Braddock Lock 2, PA	11.2 km
15225	7a	Emsworth L/D Ohio Rvr, PA	2.1 km
15226	6b	Pittsburgh Allegheny Co AP, PA	9.0 km
15227	6b	Pittsburgh Allegheny Co AP, PA	4.7 km
15228	6b	Pittsburgh Allegheny Co AP, PA	10.5 km
15229	6b	Emsworth L/D Ohio Rvr, PA	4.6 km
15232	6b	Braddock Lock 2, PA	9.1 km
15233	7a	Emsworth L/D Ohio Rvr, PA	6.8 km
15234	6b	Pittsburgh Allegheny Co AP, PA	8.3 km
15235	6b	Braddock Lock 2, PA	8.2 km
15236	6b	Pittsburgh Allegheny Co AP, PA	4.7 km
15237	6b	Emsworth L/D Ohio Rvr, PA	6.1 km
15238	6b	Acmetonia Lock 3, PA	5.4 km
15239	6b	Murrysville 2 SW, PA	8.1 km
15241	6b	Pittsburgh Allegheny Co AP, PA	13.9 km
15243	6b	Pittsburgh Allegheny Co AP, PA	13.2 km
15260	6b	Braddock Lock 2, PA	9.8 km
15282	6b	Pittsburgh Allegheny Co AP, PA	10.8 km
15290	7a	Emsworth L/D Ohio Rvr, PA	7.9 km
15301	6b	Washington 3 NE, PA	5.6 km
15311	6b	Washington 3 NE, PA	14.8 km
15312	6b	Wheeling Ohio Co AP, WV	19.4 km
15313	6b	Charleroi Lock 4, PA	14.5 km
15314	6b	Charleroi Lock 4, PA	10.0 km
15317	6b	Washington 3 NE, PA	10.9 km
15321	6b	Washington 3 NE, PA	15.9 km
15323	6b	Wheeling Ohio Co AP, WV	21.2 km
15324	6b	Washington 3 NE, PA	13.6 km
15329	6a	Waynesburg 1 E, PA	17.4 km
15330	6b	Washington 3 NE, PA	8.4 km
15331	6b	Charleroi Lock 4, PA	11.5 km
15332	6b	Charleroi Lock 4, PA	13.2 km
15333	6b	Charleroi Lock 4, PA	16.2 km
15340	6b	Washington 3 NE, PA	16.5 km
15342	6b	Washington 3 NE, PA	7.9 km
15345	6b	Waynesburg 1 E, PA	14.6 km
15347	6b	Washington 3 NE, PA	5.3 km
15348	6b	Waynesburg 1 E, PA	17.4 km
15350	6b	Washington 3 NE, PA	12.8 km
15358	6b	Charleroi Lock 4, PA	13.5 km
15360	6b	Washington 3 NE, PA	13.6 km
15361	6b	Pittsburgh INTL AP, PA	17.4 km
15363	6b	Washington 3 NE, PA	8.1 km
15365	6b	Washington 3 NE, PA	16.9 km
15367	6b	Washington 3 NE, PA	14.5 km
15368	6b	Charleroi Lock 4, PA	16.7 km
15376	6b	Wheeling Ohio Co AP, WV	16.1 km
15377	6b	Wheeling, WV	25.0 km
15379	6b	Wheeling Ohio Co AP, WV	20.3 km
15401	6b	Uniontown 1 NE, PA	2.9 km
15410	7a	Grays Landing, PA	13.9 km
15412	6b	Charleroi Lock 4, PA	6.4 km
15413	6b	Uniontown 1 NE, PA	15.1 km
15416	6b	Uniontown 1 NE, PA	6.2 km
15417	6b	Charleroi Lock 4, PA	15.8 km
15419	6b	Charleroi Lock 4, PA	10.0 km
15420	6b	Uniontown 1 NE, PA	13.4 km
15421	6a	Chalk Hill 2 Ene, PA	0.7 km
15422	6b	Uniontown 1 NE, PA	10.5 km
15423	6b	Charleroi Lock 4, PA	6.4 km
15425	6b	Connellsville 2 Ssw, PA	5.5 km
15427	6b	Charleroi Lock 4, PA	10.7 km
15428	6b	Connellsville 2 Ssw, PA	12.1 km
15429	6b	Charleroi Lock 4, PA	15.8 km
15430	6b	Connellsville 2 Ssw, PA	6.8 km
15431	6a	Connellsville 2 Ssw, PA	7.6 km
15432	6b	Charleroi Lock 4, PA	5.3 km
15433	6b	Charleroi Lock 4, PA	18.7 km
15434	6b	Charleroi Lock 4, PA	7.3 km
15435	6b	Uniontown 1 NE, PA	11.4 km
15436	6b	Uniontown 1 NE, PA	10.7 km
15437	6a	Chalk Hill 2 Ene, PA	6.0 km
15438	6b	Charleroi Lock 4, PA	8.9 km
15440	6a	Chalk Hill 2 Ene, PA	13.1 km
15442	6b	Charleroi Lock 4, PA	15.0 km
15443	7a	Uniontown 1 NE, PA	14.1 km
15444	6b	Charleroi Lock 4, PA	14.8 km
15445	6a	Uniontown 1 NE, PA	6.2 km
15446	6a	Hidden Valley, PA	11.2 km
15447	6b	Uniontown 1 NE, PA	18.6 km
15448	6b	Donora 1 SW, PA	12.0 km
15449	6b	Uniontown 1 NE, PA	8.3 km
15450	6b	Charleroi Lock 4, PA	16.7 km
15451	6b	Lake Lynn, WV	2.5 km
15454	6b	Grays Landing, PA	9.6 km
15455	6b	Connellsville 2 Ssw, PA	4.4 km
15456	6b	Uniontown 1 NE, PA	5.9 km
15458	6b	Uniontown 1 NE, PA	11.7 km
15459	6a	Confluence 1 SW Dam, PA	9.2 km
15460	6b	Grays Landing, PA	2.8 km
15461	6b	Grays Landing, PA	6.5 km
15462	6a	Donegal 2 NW, PA	7.6 km
15463	6b	Uniontown 1 NE, PA	16.2 km
15464	6a	Connellsville 2 Ssw, PA	15.5 km
15465	6b	Uniontown 1 NE, PA	7.2 km
15466	6b	Charleroi Lock 4, PA	7.7 km
15467	6b	Grays Landing, PA	1.5 km
15468	6b	Uniontown 1 NE, PA	10.4 km
15469	6a	Donegal 2 NW, PA	12.7 km
15470	6a	Chalk Hill 2 Ene, PA	5.0 km
15472	6b	Uniontown 1 NE, PA	0.5 km
15473	6b	Donora 1 SW, PA	13.1 km
15474	6b	Pt Marion Lock 8, PA	3.0 km
15475	6b	Uniontown 1 NE, PA	14.6 km
15476	6b	Grays Landing, PA	9.4 km
15478	6b	Lake Lynn, WV	8.7 km
15479	6b	Donora 1 SW, PA	13.8 km
15480	6b	Uniontown 1 NE, PA	9.1 km
15482	6b	Donora 1 SW, PA	14.4 km
15483	6b	Charleroi Lock 4, PA	8.2 km
15484	6b	Uniontown 1 NE, PA	5.7 km
15486	6b	Connellsville 2 Ssw, PA	10.3 km
15488	6b	Uniontown 1 NE, PA	7.8 km
15489	6b	Uniontown 1 NE, PA	4.8 km
15490	6a	Donegal 2 NW, PA	8.6 km
15492	6b	Donora 1 SW, PA	10.3 km
15601	6b	Mt Pleasant, PA	11.3 km
15610	6a	Donegal 2 NW, PA	0.9 km
15611	6b	Murrysville 2 SW, PA	13.2 km
15612	6b	Mt Pleasant, PA	12.1 km
15613	6b	Salina 3 W, PA	4.3 km
15615	6b	Murrysville 2 SW, PA	5.7 km
15616	6b	Mt Pleasant, PA	4.9 km
15617	6b	Mt Pleasant, PA	14.5 km
15618	6b	Salina 3 W, PA	11.2 km
15619	6b	Mt Pleasant, PA	11.7 km
15620	6b	Loyalhanna Lake, PA	17.8 km
15622	6a	Hidden Valley, PA	5.4 km
15623	6b	Murrysville 2 SW, PA	9.9 km
15624	6b	Loyalhanna Lake, PA	10.4 km
15625	6b	Murrysville 2 SW, PA	16.2 km
15626	6b	Salina 3 W, PA	11.6 km
15627	6b	Loyalhanna Lake, PA	17.3 km
15628	6a	Donegal 2 NW, PA	4.3 km
15631	6b	Connellsville 2 Ssw, PA	10.4 km
15632	6b	Salina 3 W, PA	9.7 km
15633	6b	Loyalhanna Lake, PA	12.4 km
15634	6b	Murrysville 2 SW, PA	13.9 km
15635	6b	Loyalhanna Lake, PA	13.1 km
15636	6b	Murrysville 2 SW, PA	7.8 km
15637	6b	Mckeesport, PA	15.3 km
15638	6b	Mt Pleasant, PA	9.9 km
15639	6b	Mt Pleasant, PA	8.1 km
15640	6b	Donora 1 SW, PA	13.4 km
15641	6b	Schenley Lock 5, PA	8.8 km
15642	6b	Murrysville 2 SW, PA	10.3 km
15644	6b	Murrysville 2 SW, PA	11.9 km
15646	6a	Donegal 2 NW, PA	6.3 km
15647	6b	Murrysville 2 SW, PA	7.7 km
15650	6b	Mt Pleasant, PA	11.3 km
15655	6a	Laurel Mtn, PA	0.9 km
15656	6b	Schenley Lock 5, PA	6.3 km
15658	6a	Laurel Mtn, PA	8.0 km
15661	6b	Mt Pleasant, PA	16.7 km
15662	6b	Loyalhanna Lake, PA	13.5 km
15663	6b	Mt Pleasant, PA	15.8 km
15665	6b	Murrysville 2 SW, PA	9.6 km
15666	6b	Mt Pleasant, PA	6.1 km
15668	6b	Murrysville 2 SW, PA	7.4 km
15670	6b	Loyalhanna Lake, PA	5.7 km
15671	6b	Loyalhanna Lake, PA	15.4 km
15672	6b	Mt Pleasant, PA	10.8 km
15673	6b	Salina 3 W, PA	9.4 km
15674	6b	Mt Pleasant, PA	1.0 km
15675	6b	Murrysville 2 SW, PA	11.3 km
15676	6b	Mt Pleasant, PA	4.6 km
15677	6a	Rector 3 Ssw, PA	3.5 km
15678	6b	Mckeesport, PA	12.9 km
15679	6b	Mt Pleasant, PA	13.6 km
15680	6b	Salina 3 W, PA	4.4 km
15682	6b	Schenley Lock 5, PA	3.5 km
15683	6b	Connellsville 2 Ssw, PA	12.3 km
15684	6b	Loyalhanna Lake, PA	4.8 km
15686	6b	Ford City 4 S Dam, PA	12.8 km
15687	6a	Rector 3 Ssw, PA	5.4 km
15688	6b	Mt Pleasant, PA	8.8 km
15689	6b	Mt Pleasant, PA	1.3 km
15690	6b	Ford City 4 S Dam, PA	8.7 km
15691	6b	Murrysville 2 SW, PA	13.3 km
15692	6b	Murrysville 2 SW, PA	9.8 km
15693	6b	Mt Pleasant, PA	8.8 km
15695	6b	Donora 1 SW, PA	15.5 km
15697	6b	Mt Pleasant, PA	7.4 km
15698	6b	Mt Pleasant, PA	16.1 km
15736	6b	Ford City 4 S Dam, PA	12.3 km
15774	6b	Ford City 4 S Dam, PA	17.3 km
15779	6b	Loyalhanna Lake, PA	20.7 km
15923	6b	Laurel Mtn, PA	17.4 km
15944	6b	Laurel Mtn, PA	20.4 km
16001	6a	Butler 2 SW, PA	8.0 km
16002	6a	Butler 2 SW, PA	5.9 km
16020	6a	Slippery Rock 1 Ssw, PA	15.2 km
16022	6a	Slippery Rock 1 Ssw, PA	27.3 km
16023	6a	Schenley Lock 5, PA	13.2 km
16025	6a	Butler 2 SW, PA	16.4 km
16027	6b	Butler 2 SW, PA	8.7 km
16028	6b	Butler 2 SW, PA	26.6 km
16029	6a	Butler 2 SW, PA	7.3 km
16030	6a	Slippery Rock 1 Ssw, PA	23.7 km
16033	6b	Butler 2 SW, PA	12.2 km
16034	6a	Butler 2 SW, PA	17.0 km
16035	6a	Slippery Rock 1 Ssw, PA	6.8 km
16037	6b	Beaver Falls 1 NE, PA	17.5 km
16038	6a	Slippery Rock 1 Ssw, PA	15.0 km
16040	6a	Slippery Rock 1 Ssw, PA	18.8 km
16041	6a	Butler 2 SW, PA	25.1 km
16045	6b	Butler 2 SW, PA	1.3 km
16046	6b	Butler 2 SW, PA	17.9 km
16048	6a	Slippery Rock 1 Ssw, PA	21.5 km
16050	6a	Slippery Rock 1 Ssw, PA	25.0 km
16051	6a	Slippery Rock 1 Ssw, PA	14.3 km
16052	6a	Butler 2 SW, PA	13.8 km
16053	6b	Butler 2 SW, PA	6.5 km
16055	6b	Schenley Lock 5, PA	7.8 km
16056	6b	Butler 2 SW, PA	14.0 km
16057	6a	Slippery Rock 1 Ssw, PA	2.5 km
16059	6b	Butler 2 SW, PA	15.0 km
16061	6a	Slippery Rock 1 Ssw, PA	15.7 km
16063	6b	Beaver Falls 1 NE, PA	15.4 km
16066	6b	Beaver Falls 1 NE, PA	18.5 km
16101	6a	New Castle 1 N, PA	7.0 km
16102	6a	New Castle 1 N, PA	7.6 km
16105	6a	New Castle 1 N, PA	4.5 km
16112	6a	New Castle 1 N, PA	13.1 km
16115	6b	Beaver Falls 1 NE, PA	13.2 km
16116	6a	New Castle 1 N, PA	8.0 km
16117	6b	Beaver Falls 1 NE, PA	13.0 km
16120	6a	New Castle 1 N, PA	17.7 km
16123	6b	Beaver Falls 1 NE, PA	11.8 km
16132	6a	New Castle 1 N, PA	11.9 km
16136	6b	Beaver Falls 1 NE, PA	8.1 km
16140	6a	New Castle 1 N, PA	15.1 km
16141	6b	Beaver Falls 1 NE, PA	14.9 km
16143	6a	New Castle 1 N, PA	12.5 km
16155	6a	New Castle 1 N, PA	13.7 km
16156	6a	Mercer, PA	14.1 km
16157	6b	Beaver Falls 1 NE, PA	14.0 km
16160	6b	New Castle 1 N, PA	9.9 km
16201	6b	Ford City 4 S Dam, PA	11.3 km
16210	6b	Putneyville 2 SE Dam, PA	19.8 km
16212	6b	Ford City 4 S Dam, PA	6.8 km
16218	6b	Ford City 4 S Dam, PA	24.4 km
16222	6a	Putneyville 2 SE Dam, PA	6.1 km
16223	6a	Putneyville 2 SE Dam, PA	9.2 km
16226	6b	Ford City 4 S Dam, PA	2.2 km
16229	6b	Schenley Lock 5, PA	3.3 km
16236	6b	Ford City 4 S Dam, PA	7.4 km
16244	6a	Putneyville 2 SE Dam, PA	13.3 km
16245	6a	Putneyville 2 SE Dam, PA	8.6 km
16249	6a	Ford City 4 S Dam, PA	16.5 km
16250	6a	Putneyville 2 SE Dam, PA	17.0 km
16253	6b	Putneyville 2 SE Dam, PA	6.2 km
16259	6b	Putneyville 2 SE Dam, PA	14.2 km
16262	6b	Schenley Lock 5, PA	17.2 km
16263	6a	Putneyville 2 SE Dam, PA	14.6 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 Pittsburgh, PA 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

These metros span exactly the same zones — 6a–7a — so the same plants are in and out of range across them. The freeze dates and the spring calendar are their own.

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:

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
Lebanon, PA Zone 7a

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.

Trunk wrapZone 6a is cold enough that winter sun on a young trunk does more damage than the cold does.
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 6a, 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