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

Planting zone for 95694 — Winters, CA

ZIP code 95694 (Winters, Yolo County) is in USDA zone 9b: the coldest winter night averages 25 to 30 °F. The median last spring frost is February 18 and the first fall frost November 30.

Where ZIP 95694 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 18
First frostNov 30
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 Winters, 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 Winters, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostFebruary 18median — 50% chance of a later frost
Safe for tender plantsMarch 14only 10% chance of frost after
First fall frostNovember 30median — 10% chance by Nov 15
Growing season284 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 14 and returns around December 15.

From the NOAA station Winters, CA — 6 miles away, elevation 135 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 95694

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 7 – Jan 21
SpinachSow outdoors · Jan 7 – Jan 28
Broccoli, cabbageStart indoors · Dec 10 – Dec 24
Broccoli, cabbageTransplant · Jan 28 – Feb 11
Onion setsPlant outdoors · Jan 21 – Feb 4
PotatoesPlant outdoors · Jan 28 – Feb 11
LettuceSow outdoors · Jan 21 – Feb 4
Carrots, beetsSow outdoors · Jan 28 – Feb 11
TomatoesStart indoors · Dec 24 – Jan 7
TomatoesTransplant · Feb 25 – Mar 11
Peppers, eggplantStart indoors · Dec 10 – Dec 24
Peppers, eggplantTransplant · Mar 4 – Mar 18
BeansSow outdoors · Feb 25 – Mar 11
Sweet cornSow outdoors · Feb 25 – Mar 11
Cucumbers, squashSow outdoors · Feb 25 – Mar 11
Fall lettuce, spinachSow outdoors · Oct 5 – Oct 19
GarlicPlant cloves · Nov 16 – Dec 21
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 18) and first fall frost (Nov 30) 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 95694 came on Jan 25 — 7 days earlier than 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 Winters, CA

The soil mapped at the center of ZIP 95694 is Dibble — clay loam, well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH6.0slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter3%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Dibble clay loam, 14 to 55 percent slopes, eroded, MLRA 15.

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 95694; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Winters, CA

Summer high95 °Faverage high, July
Winter low37 °Faverage low, December
Hot days107days a year at 90 °F or more
Freezing nights15nights a year at 32 °F or less
Growing degree days4,933base 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
Precipitation23.8 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 57 °F, low 38 °F 57°38° JanFebruary: average high 62 °F, low 41 °F 62°41° FebMarch: average high 68 °F, low 44 °F 68°44° MarApril: average high 74 °F, low 48 °F 74°48° AprMay: average high 83 °F, low 53 °F 83°53° MayJune: average high 90 °F, low 58 °F 90°58° JunJuly: average high 95 °F, low 60 °F 95°60° JulAugust: average high 95 °F, low 59 °F 95°59° AugSeptember: average high 91 °F, low 57 °F 91°57° SepOctober: average high 81 °F, low 50 °F 81°50° OctNovember: average high 66 °F, low 42 °F 66°42° NovDecember: average high 57 °F, low 37 °F 57°37° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 5.15 in precipitation 5.2 JanFebruary: 5.04 in precipitation 5.0 FebMarch: 3.21 in precipitation 3.2 MarApril: 1.38 in precipitation 1.4 AprMay: 0.80 in precipitation 0.8 MayJune: 0.15 in precipitation 0.1 JunJuly: 0.01 in precipitation 0.0 JulAugust: 0.02 in precipitation 0.0 AugSeptember: 0.09 in precipitation 0.1 SepOctober: 0.87 in precipitation 0.9 OctNovember: 2.19 in precipitation 2.2 NovDecember: 4.86 in precipitation 4.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Winters, CA (6 mi away); precipitation: Winters, CA (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

956539b
Madison, CA · 10 mi
956969b
Vacaville, CA · 10 mi
956889b
Vacaville, CA · 11 mi
956279b
Esparto, CA · 11 mi
956959b
Woodland, CA · 14 mi
945589b
Napa, CA · 14 mi
956169b
Davis, CA · 14 mi
956069a
Brooks, CA · 15 mi

California planting zones →

Questions about 95694

What planting zone is ZIP code 95694?

ZIP code 95694 (Winters, 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 Winters, CA?

The median last spring frost (32 °F) near 95694 is February 18; after March 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Winters station.

When is the first frost in Winters, CA?

The median first fall frost near 95694 is November 30, giving a median frost-free growing season of 284 days.

When should I plant tomatoes in 95694?

Start tomato seeds indoors around Dec 24 – Jan 7 and set transplants outside around Feb 25 – Mar 11, one to three weeks after the median last frost.

How much rain and snow does 95694 get?

About 23.8 inches of precipitation a year (NOAA 1991–2020 normals, Winters station).

How hot do summers get in Winters, CA?

The average high peaks at 95 °F in July, with about 107 days a year at 90 °F or more.

What kind of soil does 95694 have?

The USDA soil survey maps Dibble at the center of ZIP 95694: clay loam, well drained, pH about 6.0 (slightly acidic).

Did spring come early in Winters, CA in 2026?

Spring leaf-out near 95694 came on Jan 25 in 2026, 7 days earlier than the 1991–2020 average (Feb 1), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Winters, CA?

Intermediate onions: the longest day near 95694 is 14 h 52 min, so day-neutral types bulb best; long-day varieties may not bulb fully.