Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 93212 — Corcoran, CA

ZIP code 93212 (Corcoran, Kings County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is February 15 and the first fall frost November 27.

Where ZIP 93212 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone9a20 to 25 °F
Coldest night−6.7 to −3.9 °C
Last frostFeb 15
First frostNov 27
2012 zone9a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Corcoran, CA…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Corcoran, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostFebruary 15median — 50% chance of a later frost
Safe for tender plantsMarch 10only 10% chance of frost after
First fall frostNovember 27median — 10% chance by Nov 12
Growing season285 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 16 and returns around December 8.

From the NOAA station Corcoran Irrig Dist, CA — 6 miles away, elevation 200 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 93212

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 4 – Jan 18
SpinachSow outdoors · Jan 4 – Jan 25
Broccoli, cabbageStart indoors · Dec 7 – Dec 21
Broccoli, cabbageTransplant · Jan 25 – Feb 8
Onion setsPlant outdoors · Jan 18 – Feb 1
PotatoesPlant outdoors · Jan 25 – Feb 8
LettuceSow outdoors · Jan 18 – Feb 1
Carrots, beetsSow outdoors · Jan 25 – Feb 8
TomatoesStart indoors · Dec 21 – Jan 4
TomatoesTransplant · Feb 22 – Mar 8
Peppers, eggplantStart indoors · Dec 7 – Dec 21
Peppers, eggplantTransplant · Mar 1 – Mar 15
BeansSow outdoors · Feb 22 – Mar 8
Sweet cornSow outdoors · Feb 22 – Mar 8
Cucumbers, squashSow outdoors · Feb 22 – Mar 8
Fall lettuce, spinachSow outdoors · Oct 2 – Oct 16
GarlicPlant cloves · Nov 13 – Dec 18
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 15) and first fall frost (Nov 27) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 93212 came on Feb 1 — about the same time as the 1991–2020 average (Feb 1).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Corcoran, CA

The soil mapped at the center of ZIP 93212 is Gepford — clay, poorly drained.

TextureClayholds water and nutrients; slow to drain and warm up
pH7.9alkaline; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter1.5%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Gepford clay, partially drained.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 93212; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Corcoran, CA

Summer high98 °Faverage high, July
Winter low36 °Faverage low, December
Hot days121days a year at 90 °F or more
Freezing nights21nights a year at 32 °F or less
Growing degree days5,369base 50 °F — the season’s usable heat
Longest day14 h 36 mindaylight on June 21
Shortest day9 h 42 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation8.5 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 56 °F, low 38 °F 56°38° JanFebruary: average high 63 °F, low 40 °F 63°40° FebMarch: average high 69 °F, low 44 °F 69°44° MarApril: average high 76 °F, low 47 °F 76°47° AprMay: average high 85 °F, low 54 °F 85°54° MayJune: average high 94 °F, low 59 °F 94°59° JunJuly: average high 98 °F, low 64 °F 98°64° JulAugust: average high 97 °F, low 63 °F 97°63° AugSeptember: average high 92 °F, low 58 °F 92°58° SepOctober: average high 81 °F, low 50 °F 81°50° OctNovember: average high 66 °F, low 41 °F 66°41° NovDecember: average high 57 °F, low 36 °F 57°36° Dec

Precipitation by month inches

0″1″2″January: 1.79 in precipitation 1.8 JanFebruary: 1.43 in precipitation 1.4 FebMarch: 1.52 in precipitation 1.5 MarApril: 0.72 in precipitation 0.7 AprMay: 0.31 in precipitation 0.3 MayJune: 0.12 in precipitation 0.1 JunJuly: 0.02 in precipitation 0.0 JulAugust: 0.01 in precipitation 0.0 AugSeptember: 0.07 in precipitation 0.1 SepOctober: 0.43 in precipitation 0.4 OctNovember: 0.66 in precipitation 0.7 NovDecember: 1.44 in precipitation 1.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Corcoran Irrig Dist, CA (6 mi away); precipitation: Hanford 1 S, CA (21 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

2 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

932829a
Waukena, CA · 8 mi
932019a
Alpaugh, CA · 11 mi
932729a
Tipton, CA · 12 mi
932569a
Pixley, CA · 14 mi
932749b
Tulare, CA · 15 mi
932199a
Earlimart, CA · 17 mi
932759b
Tulare, CA · 18 mi
932309a
Hanford, CA · 19 mi

California planting zones →

Questions about 93212

What planting zone is ZIP code 93212?

ZIP code 93212 (Corcoran, CA) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Corcoran, CA?

The median last spring frost (32 °F) near 93212 is February 15; after March 10 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Corcoran Irrig Dist station.

When is the first frost in Corcoran, CA?

The median first fall frost near 93212 is November 27, giving a median frost-free growing season of 285 days.

When should I plant tomatoes in 93212?

Start tomato seeds indoors around Dec 21 – Jan 4 and set transplants outside around Feb 22 – Mar 8, one to three weeks after the median last frost.

How much rain and snow does 93212 get?

About 8.5 inches of precipitation a year (NOAA 1991–2020 normals, Hanford 1 S station).

How hot do summers get in Corcoran, CA?

The average high peaks at 98 °F in July, with about 121 days a year at 90 °F or more.

What kind of soil does 93212 have?

The USDA soil survey maps Gepford at the center of ZIP 93212: clay, poorly drained, pH about 7.9 (alkaline).

Did spring come early in Corcoran, CA in 2026?

Spring leaf-out near 93212 came on Feb 1 in 2026, about the same as the 1991–2020 average (Feb 1), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Corcoran, CA?

Intermediate onions: the longest day near 93212 is 14 h 36 min, so day-neutral types bulb best; long-day varieties may not bulb fully.