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Place guide

Planting zones in Bakersfield-Delano, CA

This metro spans USDA zones 8a to 9b, so there is no single zone for Bakersfield-Delano, CA and anyone who gives you one is rounding. 47% of its ZIP codes are zone 9b; the rest are not.

USDA zones 8a–9b 4 zones across 47 ZIP codes
ZIP codes 47 47 have a NOAA station within range
Weather stations 18 NOAA 1991–2020 normals, across 8,135 sq mi

Your ZIP code

Get the exact answer for your address

Everything above describes Bakersfield-Delano, CA as a whole. Hardiness zones and freeze dates are published per ZIP code, so yours is exact β€” enter it and this page will tell you your zone, which NOAA station it comes from and how far away that station is.

Works for all 40,502 US ZIP codes. Freeze dates need a NOAA station within 100 km; where there is none, the page says so rather than estimating one.

Bakersfield-Delano, CA does not have one planting answer

Its own weather stations disagree about 26 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 β€” it is what the data says.

Shortest season
155 days
GLENNVILLE, CA US (USC00043463)
Longest season
334 days
BAKERSFIELD AP, CA US (USW00023155)

179 days of growing season separate those two stations, and both serve ZIP codes in Bakersfield-Delano, CA. 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 2.02Γ—.

The zones also overlap rather than stack β€” 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 β†’

Growing season across Bakersfield-Delano, CA A one-year bar. Every one of the 18 NOAA stations serving this metro area counts May 11 to October 17 as growing season, 159 days. At least one counts January 17 to December 17, 334 days. The same figures are written out below this chart. JFMAMJJASONDMay 11October 17

All 18 stations agreeAt least one station

Every one of the 18 NOAA stations serving this metro area counts May 11 – October 17 as growing season (159 days). Widening to any single station gives January 17 – December 17 (334 days).

That is a 175-day difference inside one metro area β€” 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

Bakersfield-Delano, CA covers 4 hardiness zones. A guide that gives the metro one zone has picked whichever is largest and rounded everyone else into it β€” which is fine for the 47% in zone 9b and wrong for the other 53%. Here is the actual split.

Zone ZIP codes Share  
9b 22 47%
8b 15 32%
9a 9 19%
8a 1 2%

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 January 17 – May 11
First fall freeze October 17 – December 17

Those are the earliest and latest medians among the 18 stations serving this metro β€” 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 β€” a zone is the average annual coldest night, a freeze date is when the season turns β€” 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 18 stations serving Bakersfield-Delano, CA it runs 155–334 days . That figure is published, not computed from the two freeze dates β€” subtracting one from the other gives the wrong answer wherever a season crosses New Year. Mean summer high (June–August) runs 84–102 Β°F , at or above the 90 Β°F point where cool-season crops bolt and tomato and pepper pollen fails β€” so midsummer sowings of lettuce and its relatives are worth holding here. Summer rain over the same months runs 0.0–0.5" across those 17 stations, against the rough inch a week β€” about 13 inches over the same 92 days β€” that a vegetable garden is usually reckoned to want. The middle station covers about 2% of it, so a summer garden here is watered rather than rained on. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 96 Β°F summer afternoon drying the soil faster than a cool one.

When to start seeds in Bakersfield-Delano, CA

Every spring job for 63 crop dates, counted from this metro's own last spring freeze. Each is a range across all 18 stations β€” the earliest and latest that job falls anywhere in the metro β€” because no one station speaks for the whole area.

Crop Job When Offset
Arugula Direct sow January 3 – December 27 4 weeks before
Baby Salad Greens Direct sow January 3 – December 27 4 weeks before
Beets Direct sow January 3 – December 27 4 weeks before
Bok Choy Direct sow January 3 – April 27 2 weeks before
Bok Choy Set out January 3 – April 27 2 weeks before
Broccoli Set out January 3 – April 27 2 weeks before
Cabbage Set out January 3 – December 27 3 weeks before
Carrots Direct sow January 3 – December 27 3 weeks before
Cilantro Direct sow January 3 – April 27 2 weeks before
Collards Direct sow January 3 – December 27 3 weeks before
Collards Set out January 3 – December 27 3 weeks before
Cucumbers Start indoors January 3 – December 27 3 weeks before
Green Onions Direct sow January 3 – December 27 4 weeks before
Green Onions Set out January 3 – December 27 3 weeks before
Kale Direct sow January 3 – December 27 3 weeks before
Kale Set out January 3 – December 27 3 weeks before
Kohlrabi Direct sow January 3 – December 27 3 weeks before
Kohlrabi Set out January 3 – December 27 3 weeks before
Leaf Lettuce Direct sow January 3 – December 27 3 weeks before
Leaf Lettuce Set out January 3 – April 27 2 weeks before
Mustard Greens Direct sow January 3 – December 27 4 weeks before
Okra Start indoors January 3 – December 27 4 weeks before
Pumpkins Start indoors January 3 – December 27 3 weeks before
Radishes Direct sow January 3 – December 27 4 weeks before
Summer Squash Start indoors January 3 – December 27 3 weeks before
Swiss Chard Direct sow January 3 – April 27 2 weeks before
Swiss Chard Set out January 3 – April 27 2 weeks before
Turnips Direct sow January 3 – December 27 4 weeks before
Winter Squash Start indoors January 3 – December 27 3 weeks before
Zucchini Start indoors January 3 – December 27 3 weeks before
Bok Choy Start indoors January 5 – December 27 5 weeks before
Kohlrabi Start indoors January 5 – December 27 5 weeks before
Swiss Chard Start indoors January 5 – December 27 5 weeks before
Broccoli Start indoors January 8 – December 29 6 weeks before
Cabbage Start indoors January 8 – December 29 6 weeks before
Collards Start indoors January 8 – December 29 6 weeks before
Kale Start indoors January 8 – December 29 6 weeks before
Leaf Lettuce Start indoors January 8 – December 29 6 weeks before
Peas Direct sow January 8 – December 29 6 weeks before
Spinach Direct sow January 8 – December 29 6 weeks before
Sweet Potato Start indoors January 8 – December 29 6 weeks before
Tomatoes Start indoors January 8 – December 29 6 weeks before
Dill Direct sow January 10 – May 4 1 week before
Green Onions Start indoors January 14 – December 26 8 weeks before
Peppers Start indoors January 14 – December 26 8 weeks before
Bush Beans Direct sow January 24 – May 18 1 week after
Cucumbers Set out January 24 – May 18 1 week after
Pumpkins Direct sow January 24 – May 18 1 week after
Pumpkins Set out January 24 – May 18 1 week after
Summer Squash Direct sow January 24 – May 18 1 week after
Summer Squash Set out January 24 – May 18 1 week after
Sweet Corn Direct sow January 24 – May 18 1 week after
Tomatoes Set out January 24 – May 18 1 week after
Winter Squash Direct sow January 24 – May 18 1 week after
Winter Squash Set out January 24 – May 18 1 week after
Zucchini Direct sow January 24 – May 18 1 week after
Zucchini Set out January 24 – May 18 1 week after
Cucumbers Direct sow January 31 – May 25 2 weeks after
Okra Direct sow January 31 – May 25 2 weeks after
Okra Set out January 31 – May 25 2 weeks after
Peppers Set out January 31 – May 25 2 weeks after
Southern Peas Direct sow January 31 – May 25 2 weeks after
Sweet Potato Set out January 31 – May 25 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 Bakersfield-Delano, CA

Of 74 perennial fruits, nuts, berries, vegetables and herbs, 57 come through the winter in zone 8a and only 40 in zone 9b. That is a different garden at each end of the same metro.

Zone ZIPs Survive Fail for being too warm
8a 1 57 of 74 8
8b 15 54 of 74 11
9a 9 46 of 74 25
9b 22 40 of 74 32

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 Β°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.

At least one station here freezes across the new year, which puts the two ends of a spread on opposite sides of the calendar. Drawing it would produce a bar spanning almost the whole year and meaning nothing, so none is drawn.

The 18 stations behind these numbers

The 18 NOAA stations serving Bakersfield-Delano, CA A relative sketch of where the stations sit, about 140 kilometres north to south. Each is named with its NOAA identifier in the station list on this page, which carries the same information as text. BAKERSFIELD 5 NW, CA US (USC00040444)BAKERSFIELD AP, CA US (USW00023155)BUTTONWILLOW, CA US (USC00041244)CHINA LAKE NAF, CA US (USW00093104)DELANO, CA US (USC00042346)GLENNVILLE, CA US (USC00043463)KERN RIVER PH 3, CA US (USC00044523)KETTLEMAN CITY, CA US (USC00044534)LANCASTER WM J FOX FLD, CA US (USW00003159)LORAINE 5 NNE, CA US (USC00045100)MOJAVE, CA US (USC00045756)RANDSBURG, CA US (USC00047253)S LAKE FS, CA US (USC00048407)SANDBERG, CA US (USW00023187)SHAFTER 6E, CA US (USC00048122)TAFT, CA US (USC00048752)TEHACHAPI 4 SE, CA US (USC00048829)WASCO, CA US (USC00049452) ~140 km north to south

All 18 NOAA stations whose normals this page quotes, spanning about 140 km north to south. Every one is named with its identifier in the station list below β€” 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 β€” the table below gives it per ZIP code rather than this page averaging it.

Station NOAA ID Last spring freeze First fall freeze Season
Bakersfield 5 NW, CA USC00040444 January 31 December 8 312 days
Bakersfield AP, CA USW00023155 January 17 December 15 334 days
Buttonwillow, CA USC00041244 February 9 November 26 289 days
China Lake Naf, CA USW00093104 March 11 November 12 244 days
Delano, CA USC00042346 January 31 December 8 309 days
Glennville, CA USC00043463 May 11 October 17 155 days
Kern River Ph 3, CA USC00044523 April 7 November 11 217 days
Kettleman City, CA USC00044534 February 19 November 29 281 days
Lancaster Wm J Fox FLD, CA USW00003159 April 3 November 1 211 days
Loraine 5 Nne, CA USC00045100 April 22 November 13 201 days
Mojave, CA USC00045756 March 15 November 17 241 days
Randsburg, CA USC00047253 March 19 November 25 251 days
S Lake Fs, CA USC00048407 April 5 November 3 212 days
Sandberg, CA USW00023187 April 15 November 26 224 days
Shafter 6E, CA USC00048122 February 20 November 23 276 days
Taft, CA USC00048752 January 24 December 17 330 days
Tehachapi 4 SE, CA USC00048829 April 28 October 26 183 days
Wasco, CA USC00049452 January 31 December 5 315 days

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

Every ZIP code in Bakersfield-Delano, CA

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 β€” 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
93203 9b Bakersfield 5 NW, CA 38.1 km
93205 8b S Lake Fs, CA 14.0 km
93206 9a Buttonwillow, CA 4.6 km
93215 9b Delano, CA 6.3 km
93220 9b Bakersfield 5 NW, CA 24.8 km
93222 8b Taft, CA 35.0 km
93224 9b Taft, CA 21.2 km
93226 8b Glennville, CA 3.5 km
93240 9a S Lake Fs, CA 8.9 km
93241 9b Bakersfield 5 NW, CA 23.4 km
93243 8b Sandberg, CA 13.5 km
93249 9b Kettleman City, CA 43.3 km
93250 9b Delano, CA 12.2 km
93251 9b Buttonwillow, CA 20.9 km
93255 9a S Lake Fs, CA 23.7 km
93263 9a Shafter 6E, CA 12.0 km
93268 9b Taft, CA 2.6 km
93276 9b Buttonwillow, CA 11.0 km
93280 9a Wasco, CA 11.0 km
93283 9a S Lake Fs, CA 8.3 km
93285 8b Kern River Ph 3, CA 6.2 km
93287 9b Glennville, CA 19.9 km
93301 9b Bakersfield 5 NW, CA 4.7 km
93304 9b Bakersfield 5 NW, CA 9.1 km
93305 9b Bakersfield 5 NW, CA 6.8 km
93306 9b Bakersfield AP, CA 25.1 km
93307 9b Bakersfield 5 NW, CA 21.7 km
93308 9b Bakersfield AP, CA 15.9 km
93309 9b Bakersfield 5 NW, CA 8.5 km
93311 9b Taft, CA 23.8 km
93312 9b Bakersfield 5 NW, CA 6.9 km
93313 9b Bakersfield 5 NW, CA 28.2 km
93314 9b Shafter 6E, CA 13.7 km
93501 8b Mojave, CA 5.8 km
93505 8b Mojave, CA 19.8 km
93516 8b Randsburg, CA 40.2 km
93518 8b Loraine 5 Nne, CA 7.2 km
93519 8b Randsburg, CA 28.6 km
93523 8b Mojave, CA 26.0 km
93524 8a Mojave, CA 34.2 km
93528 9a Randsburg, CA 1.0 km
93531 9a Tehachapi 4 SE, CA 22.6 km
93554 9a Randsburg, CA 9.7 km
93555 8b China Lake Naf, CA 11.7 km
93560 8b Lancaster Wm J Fox FLD, CA 18.1 km
93561 8b Tehachapi 4 SE, CA 8.6 km
93581 8b Tehachapi 4 SE, CA 13.6 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.

Other places to compare

These metros span exactly the same zones β€” 8a–9b β€” so the same plants are in and out of range across them. The freeze dates and the spring calendar are their own.

Gardening in California β€” zones 5b– 11a covers the whole state: how its 1,788 ZIP codes divide between 12 hardiness zones, and the freeze dates across every NOAA station in it.

Other metro areas in CA:

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 β€” the search is the honest version, and you choose.

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