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

Planting zone for 95691 — West Sacramento, CA

ZIP code 95691 (West Sacramento, Yolo County) is in USDA zone 9b: the coldest winter night averages 25 to 30 °F. The median last spring frost is February 22 and the first fall frost November 24.

Where ZIP 95691 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.

Zone9b25 to 30 °F
Coldest night−3.9 to −1.1 °C
Last frostFeb 22
First frostNov 24
2012 zone9b

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 9b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for West Sacramento, 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 West Sacramento, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostFebruary 22median — 50% chance of a later frost
Safe for tender plantsApril 1only 10% chance of frost after
First fall frostNovember 24median — 10% chance by Nov 9
Growing season277 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 17 and returns around December 10.

From the NOAA station Sacramento Metro Airport, CA — 5 miles away, elevation 23 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 95691

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 11 – Jan 25
SpinachSow outdoors · Jan 11 – Feb 1
Broccoli, cabbageStart indoors · Dec 14 – Dec 28
Broccoli, cabbageTransplant · Feb 1 – Feb 15
Onion setsPlant outdoors · Jan 25 – Feb 8
PotatoesPlant outdoors · Feb 1 – Feb 15
LettuceSow outdoors · Jan 25 – Feb 8
Carrots, beetsSow outdoors · Feb 1 – Feb 15
TomatoesStart indoors · Dec 28 – Jan 11
TomatoesTransplant · Mar 1 – Mar 15
Peppers, eggplantStart indoors · Dec 14 – Dec 28
Peppers, eggplantTransplant · Mar 8 – Mar 22
BeansSow outdoors · Mar 1 – Mar 15
Sweet cornSow outdoors · Mar 1 – Mar 15
Cucumbers, squashSow outdoors · Mar 1 – Mar 15
Fall lettuce, spinachSow outdoors · Sep 29 – Oct 13
GarlicPlant cloves · Nov 10 – Dec 15
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 22) and first fall frost (Nov 24) 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 95691 came on Jan 31 — 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 West Sacramento, CA

The soil mapped at the center of ZIP 95691 is Sycamore — silty clay loam, somewhat poorly drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up
pH7.0neutral; most vegetables like 6.0–7.0
DrainageSomewhat poorly drainedconsider raised beds
Organic matter2%moderate
Hydrologic groupCwater soaks in slowly
Farmland classPrime farmland if irrigatedUSDA classification

Map unit: Sycamore complex, 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 95691; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in West Sacramento, CA

Summer high94 °Faverage high, July
Winter low37 °Faverage low, December
Hot days84days a year at 90 °F or more
Freezing nights23nights a year at 32 °F or less
Growing degree days4,482base 50 °F — the season’s usable heat
Longest day14 h 52 mindaylight on June 21
Shortest day9 h 28 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation18 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 55 °F, low 38 °F 55°38° JanFebruary: average high 60 °F, low 40 °F 60°40° FebMarch: average high 66 °F, low 43 °F 66°43° MarApril: average high 72 °F, low 46 °F 72°46° AprMay: average high 81 °F, low 52 °F 81°52° MayJune: average high 89 °F, low 56 °F 89°56° JunJuly: average high 94 °F, low 59 °F 94°59° JulAugust: average high 92 °F, low 58 °F 92°58° AugSeptember: average high 89 °F, low 55 °F 89°55° SepOctober: average high 79 °F, low 48 °F 79°48° OctNovember: average high 64 °F, low 41 °F 64°41° NovDecember: average high 55 °F, low 37 °F 55°37° Dec

Precipitation by month inches

0″1″2″3″4″January: 3.68 in precipitation 3.7 JanFebruary: 3.52 in precipitation 3.5 FebMarch: 2.64 in precipitation 2.6 MarApril: 1.23 in precipitation 1.2 AprMay: 0.63 in precipitation 0.6 MayJune: 0.21 in precipitation 0.2 JunJuly: 0.00 in precipitation 0.0 JulAugust: 0.07 in precipitation 0.1 AugSeptember: 0.09 in precipitation 0.1 SepOctober: 0.82 in precipitation 0.8 OctNovember: 1.79 in precipitation 1.8 NovDecember: 3.29 in precipitation 3.3 Dec

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

Nearby ZIP codes

All 8 nearest ZIP codes share zone 9b.

956059b
West Sacramento, CA · 4 mi
958349b
Sacramento, CA · 4 mi
957999b
West Sacramento, CA · 4 mi
958339b
Sacramento, CA · 4 mi
958379b
Sacramento, CA · 5 mi
958359b
Sacramento, CA · 5 mi
957989b
West Sacramento, CA · 5 mi
958149b
Sacramento, CA · 6 mi

All 4 ZIP codes in West Sacramento → · California planting zones →

Questions about 95691

What planting zone is ZIP code 95691?

ZIP code 95691 (West Sacramento, CA) is in USDA hardiness zone 9b on the 2023 map: the coldest night of an average winter reaches 25 to 30 °F (−3.9 to −1.1 °C).

When is the last frost in West Sacramento, CA?

The median last spring frost (32 °F) near 95691 is February 22; after April 1 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Sacramento Metro Airport station.

When is the first frost in West Sacramento, CA?

The median first fall frost near 95691 is November 24, giving a median frost-free growing season of 277 days.

When should I plant tomatoes in 95691?

Start tomato seeds indoors around Dec 28 – Jan 11 and set transplants outside around Mar 1 – Mar 15, one to three weeks after the median last frost.

How much rain and snow does 95691 get?

About 18 inches of precipitation a year (NOAA 1991–2020 normals, Sacramento Metro Airport station).

How hot do summers get in West Sacramento, CA?

The average high peaks at 94 °F in July, with about 84 days a year at 90 °F or more.

What kind of soil does 95691 have?

The USDA soil survey maps Sycamore at the center of ZIP 95691: silty clay loam, somewhat poorly drained, pH about 7.0 (neutral).

Did spring come early in West Sacramento, CA in 2026?

Spring leaf-out near 95691 came on Jan 31 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 West Sacramento, CA?

Intermediate onions: the longest day near 95691 is 14 h 52 min, so day-neutral types bulb best; long-day varieties may not bulb fully.