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

Planting zone for 93207 — California Hot Springs, CA

ZIP code 93207 (California Hot Springs, Tulare County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 7 and the first fall frost November 11.

Where ZIP 93207 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.

Zone7b5 to 10 °F
Coldest night−15 to −12.2 °C
Last frostApr 7
First frostNov 11
2012 zone8b

Was 8b on the 2012 map — a full zone colder now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for California Hot Springs, 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 California Hot Springs, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 7median — 50% chance of a later frost
Safe for tender plantsApril 28only 10% chance of frost after
First fall frostNovember 11median — 10% chance by Oct 30
Growing season217 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 10 and returns around November 24.

From the NOAA station Kern River Ph 3, CA — 12 miles away, elevation 2,704 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 93207

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 24 – Mar 10
SpinachSow outdoors · Feb 24 – Mar 17
Broccoli, cabbageStart indoors · Jan 27 – Feb 10
Broccoli, cabbageTransplant · Mar 17 – Mar 31
Onion setsPlant outdoors · Mar 10 – Mar 24
PotatoesPlant outdoors · Mar 17 – Mar 31
LettuceSow outdoors · Mar 10 – Mar 24
Carrots, beetsSow outdoors · Mar 17 – Mar 31
TomatoesStart indoors · Feb 10 – Feb 24
TomatoesTransplant · Apr 14 – Apr 28
Peppers, eggplantStart indoors · Jan 27 – Feb 10
Peppers, eggplantTransplant · Apr 21 – May 5
BeansSow outdoors · Apr 14 – Apr 28
Sweet cornSow outdoors · Apr 14 – Apr 28
Cucumbers, squashSow outdoors · Apr 14 – Apr 28
Fall lettuce, spinachSow outdoors · Sep 16 – Sep 30
GarlicPlant cloves · Oct 28 – Dec 2
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 7) and first fall frost (Nov 11) 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 93207 came on Feb 21 — 24 days earlier than the 1991–2020 average (Mar 17).

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 California Hot Springs, CA

The soil mapped at the center of ZIP 93207 is Chaix — sandy loam, well drained.

TextureSandy loamdrains and warms fast; dries out and needs more feeding
pH6.1slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter4%moderate
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Chaix-Rock outcrop-Chawanakee complex, 50 to 75 percent slopes.

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 93207; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in California Hot Springs, CA

Summer high99 °Faverage high, July
Winter low31 °Faverage low, December
Hot days111days a year at 90 °F or more
Freezing nights68nights a year at 32 °F or less
Growing degree days4,694base 50 °F — the season’s usable heat
Longest day14 h 36 mindaylight on June 21
Shortest day9 h 43 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation11.8 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 61 °F, low 32 °F 61°32° JanFebruary: average high 63 °F, low 33 °F 63°33° FebMarch: average high 67 °F, low 36 °F 67°36° MarApril: average high 72 °F, low 41 °F 72°41° AprMay: average high 80 °F, low 48 °F 80°48° MayJune: average high 91 °F, low 56 °F 91°56° JunJuly: average high 99 °F, low 63 °F 99°63° JulAugust: average high 98 °F, low 62 °F 98°62° AugSeptember: average high 92 °F, low 56 °F 92°56° SepOctober: average high 81 °F, low 46 °F 81°46° OctNovember: average high 69 °F, low 36 °F 69°36° NovDecember: average high 60 °F, low 31 °F 60°31° Dec

Precipitation by month inches

0″1″2″3″January: 2.29 in precipitation 2.3 JanFebruary: 2.39 in precipitation 2.4 FebMarch: 1.71 in precipitation 1.7 MarApril: 0.67 in precipitation 0.7 AprMay: 0.43 in precipitation 0.4 MayJune: 0.10 in precipitation 0.1 JunJuly: 0.14 in precipitation 0.1 JulAugust: 0.07 in precipitation 0.1 AugSeptember: 0.23 in precipitation 0.2 SepOctober: 0.55 in precipitation 0.6 OctNovember: 1.35 in precipitation 1.4 NovDecember: 1.91 in precipitation 1.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Kern River Ph 3, CA (12 mi away); precipitation: Kern River Ph 3, CA (12 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

932388b
Kernville, CA · 6 mi
932609a
Posey, CA · 6 mi
932858b
Wofford Heights, CA · 12 mi
932268b
Glennville, CA · 14 mi
932088b
Camp Nelson, CA · 16 mi
932579b
Porterville, CA · 17 mi
932409a
Lake Isabella, CA · 21 mi
932879b
Woody, CA · 22 mi

California planting zones →

Questions about 93207

What planting zone is ZIP code 93207?

ZIP code 93207 (California Hot Springs, CA) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in California Hot Springs, CA?

The median last spring frost (32 °F) near 93207 is April 7; after April 28 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Kern River Ph 3 station.

When is the first frost in California Hot Springs, CA?

The median first fall frost near 93207 is November 11, giving a median frost-free growing season of 217 days.

When should I plant tomatoes in 93207?

Start tomato seeds indoors around Feb 10 – Feb 24 and set transplants outside around Apr 14 – Apr 28, one to three weeks after the median last frost.

How much rain and snow does 93207 get?

About 11.8 inches of precipitation a year (NOAA 1991–2020 normals, Kern River Ph 3 station).

How hot do summers get in California Hot Springs, CA?

The average high peaks at 99 °F in July, with about 111 days a year at 90 °F or more.

What kind of soil does 93207 have?

The USDA soil survey maps Chaix at the center of ZIP 93207: sandy loam, well drained, pH about 6.1 (slightly acidic).

Did spring come early in California Hot Springs, CA in 2026?

Spring leaf-out near 93207 came on Feb 21 in 2026, 24 days earlier than the 1991–2020 average (Mar 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in California Hot Springs, CA?

Intermediate onions: the longest day near 93207 is 14 h 36 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 93207 change?

Yes. The 2012 USDA map put 93207 in zone 8b; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.