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

Planting zone for 92268 — Pioneertown, CA

ZIP code 92268 (Pioneertown, San Bernardino County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is February 25 and the first fall frost December 15.

Where ZIP 92268 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 25
First frostDec 15
2012 zone8b

Was 8b on the 2012 map — half a zone warmer now. 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 Pioneertown, 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 Pioneertown, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostFebruary 25median — 50% chance of a later frost
Safe for tender plantsApril 3only 10% chance of frost after
First fall frostDecember 15median — 10% chance by Nov 23
Growing season297 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 25 and returns around January 6.

From the NOAA station Morongo Valley N, CA — 5 miles away, elevation 3,146 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 92268

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 14 – Jan 28
SpinachSow outdoors · Jan 14 – Feb 4
Broccoli, cabbageStart indoors · Dec 17 – Dec 31
Broccoli, cabbageTransplant · Feb 4 – Feb 18
Onion setsPlant outdoors · Jan 28 – Feb 11
PotatoesPlant outdoors · Feb 4 – Feb 18
LettuceSow outdoors · Jan 28 – Feb 11
Carrots, beetsSow outdoors · Feb 4 – Feb 18
TomatoesStart indoors · Dec 31 – Jan 14
TomatoesTransplant · Mar 4 – Mar 18
Peppers, eggplantStart indoors · Dec 17 – Dec 31
Peppers, eggplantTransplant · Mar 11 – Mar 25
BeansSow outdoors · Mar 4 – Mar 18
Sweet cornSow outdoors · Mar 4 – Mar 18
Cucumbers, squashSow outdoors · Mar 4 – Mar 18
Fall lettuce, spinachSow outdoors · Oct 20 – Nov 3
GarlicPlant cloves · Dec 1 – Jan 5
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 25) and first fall frost (Dec 15) 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 92268 came on Jan 28 — 8 days earlier than the 1991–2020 average (Feb 5).

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 Pioneertown, CA

The soil mapped at the center of ZIP 92268 is Typic Haplargids — cobbly fine sandy loam, well drained.

TextureCobbly fine sandy loamdrains and warms fast; dries out and needs more feeding
pH7.5slightly alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.2%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Typic Haplargids and Lithic Haplargids; thermic hills and mountains.

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 92268; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Pioneertown, CA

Summer high94 °Faverage high, July
Winter low40 °Faverage low, December
Hot days91days a year at 90 °F or more
Freezing nights13nights a year at 32 °F or less
Growing degree days5,671base 50 °F — the season’s usable heat
Longest day14 h 26 mindaylight on June 21
Shortest day9 h 52 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation9.4 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 59 °F, low 41 °F 59°41° JanFebruary: average high 61 °F, low 42 °F 61°42° FebMarch: average high 66 °F, low 45 °F 66°45° MarApril: average high 73 °F, low 48 °F 73°48° AprMay: average high 80 °F, low 54 °F 80°54° MayJune: average high 89 °F, low 63 °F 89°63° JunJuly: average high 94 °F, low 69 °F 94°69° JulAugust: average high 94 °F, low 70 °F 94°70° AugSeptember: average high 88 °F, low 66 °F 88°66° SepOctober: average high 78 °F, low 57 °F 78°57° OctNovember: average high 67 °F, low 47 °F 67°47° NovDecember: average high 59 °F, low 40 °F 59°40° Dec

Precipitation by month inches

0″1″2″3″January: 2.72 in precipitation 2.7 JanFebruary: 2.90 in precipitation 2.9 FebMarch: 0.90 in precipitation 0.9 MarApril: 0.22 in precipitation 0.2 AprMay: 0.07 in precipitation 0.1 MayJune: 0.02 in precipitation 0.0 JunJuly: 0.19 in precipitation 0.2 JulAugust: 0.22 in precipitation 0.2 AugSeptember: 0.17 in precipitation 0.2 SepOctober: 0.17 in precipitation 0.2 OctNovember: 0.31 in precipitation 0.3 NovDecember: 1.48 in precipitation 1.5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Morongo Valley N, CA (5 mi away); precipitation: Morongo Valley N, CA (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

922849a
Yucca Valley, CA · 7 mi
922569b
Morongo Valley, CA · 7 mi
922869a
Yucca Valley, CA · 12 mi
922859a
Landers, CA · 12 mi
9224010a
Desert Hot Springs, CA · 15 mi
922829b
Whitewater, CA · 15 mi
922529a
Joshua Tree, CA · 15 mi
923147a
Big Bear City, CA · 15 mi

California planting zones →

Questions about 92268

What planting zone is ZIP code 92268?

ZIP code 92268 (Pioneertown, 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 Pioneertown, CA?

The median last spring frost (32 °F) near 92268 is February 25; after April 3 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Morongo Valley N station.

When is the first frost in Pioneertown, CA?

The median first fall frost near 92268 is December 15, giving a median frost-free growing season of 297 days.

When should I plant tomatoes in 92268?

Start tomato seeds indoors around Dec 31 – Jan 14 and set transplants outside around Mar 4 – Mar 18, one to three weeks after the median last frost.

How much rain and snow does 92268 get?

About 9.4 inches of precipitation a year (NOAA 1991–2020 normals, Morongo Valley N station).

How hot do summers get in Pioneertown, CA?

The average high peaks at 94 °F in July, with about 91 days a year at 90 °F or more.

What kind of soil does 92268 have?

The USDA soil survey maps Typic Haplargids at the center of ZIP 92268: cobbly fine sandy loam, well drained, pH about 7.5 (slightly alkaline).

Did spring come early in Pioneertown, CA in 2026?

Spring leaf-out near 92268 came on Jan 28 in 2026, 8 days earlier than the 1991–2020 average (Feb 5), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Pioneertown, CA?

Intermediate onions: the longest day near 92268 is 14 h 26 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 92268 change?

Yes. The 2012 USDA map put 92268 in zone 8b; the 2023 map puts it in zone 9a. The newer map uses 1991–2020 data and more weather stations.