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

Planting zone for 95249 — San Andreas, CA

ZIP code 95249 (San Andreas, Calaveras County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F.

Where ZIP 95249 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 frostrare
First frostrare
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 San Andreas, 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

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Camp Pardee, CA — 13 miles away, elevation 659 ft) the median growing season is 332 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 95249 came on Jan 27 — 6 days earlier than the 1991–2020 average (Feb 2).

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 San Andreas, CA

The soil mapped at the center of ZIP 95249 is Cumulic Humixerepts — loam, well drained.

TextureLoama good balance for most vegetables
pH6.3slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter5%high
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Cumulic Humixerepts-Riverwash complex, 0 to 8 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 95249; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in San Andreas, CA

Summer high95 °Faverage high, July
Winter low40 °Faverage low, January
Hot days87days a year at 90 °F or more
Freezing nights7nights a year at 32 °F or less
Growing degree days4,910base 50 °F — the season’s usable heat
Longest day14 h 49 mindaylight on June 21
Shortest day9 h 30 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation22.9 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 55 °F, low 40 °F 55°40° JanFebruary: average high 59 °F, low 43 °F 59°43° FebMarch: average high 64 °F, low 45 °F 64°45° MarApril: average high 69 °F, low 48 °F 69°48° AprMay: average high 79 °F, low 53 °F 79°53° MayJune: average high 88 °F, low 59 °F 88°59° JunJuly: average high 95 °F, low 63 °F 95°63° JulAugust: average high 94 °F, low 63 °F 94°63° AugSeptember: average high 88 °F, low 61 °F 88°61° SepOctober: average high 78 °F, low 54 °F 78°54° OctNovember: average high 64 °F, low 46 °F 64°46° NovDecember: average high 55 °F, low 40 °F 55°40° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.99 in precipitation 4.0 JanFebruary: 3.84 in precipitation 3.8 FebMarch: 3.63 in precipitation 3.6 MarApril: 2.15 in precipitation 2.1 AprMay: 1.28 in precipitation 1.3 MayJune: 0.33 in precipitation 0.3 JunJuly: 0.00 in precipitation 0.0 JulAugust: 0.03 in precipitation 0.0 AugSeptember: 0.17 in precipitation 0.2 SepOctober: 1.13 in precipitation 1.1 OctNovember: 2.16 in precipitation 2.2 NovDecember: 4.15 in precipitation 4.2 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Camp Pardee, CA (13 mi away); precipitation: Camp Pardee, CA (13 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 9a.

952459a
Mokelumne Hill, CA · 8 mi
952469a
Mountain Ranch, CA · 8 mi
952219a
Altaville, CA · 9 mi
952229a
Angels Camp, CA · 10 mi
952479a
Murphys, CA · 10 mi
952299a
Douglas Flat, CA · 10 mi
952519a
Vallecito, CA · 12 mi
952329a
Glencoe, CA · 12 mi

California planting zones →

Questions about 95249

What planting zone is ZIP code 95249?

ZIP code 95249 (San Andreas, 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).

How much rain and snow does 95249 get?

About 22.9 inches of precipitation a year (NOAA 1991–2020 normals, Camp Pardee station).

How hot do summers get in San Andreas, CA?

The average high peaks at 95 °F in July, with about 87 days a year at 90 °F or more.

What kind of soil does 95249 have?

The USDA soil survey maps Cumulic Humixerepts at the center of ZIP 95249: loam, well drained, pH about 6.3 (slightly acidic).

Did spring come early in San Andreas, CA in 2026?

Spring leaf-out near 95249 came on Jan 27 in 2026, 6 days earlier than the 1991–2020 average (Feb 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in San Andreas, CA?

Intermediate onions: the longest day near 95249 is 14 h 49 min, so day-neutral types bulb best; long-day varieties may not bulb fully.