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

Planting zone for 95607 — Capay, CA

ZIP code 95607 (Capay, Yolo County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is February 7 and the first fall frost December 5.

Where ZIP 95607 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 7
First frostDec 5
2012 zone9b

Was 9b on the 2012 map — half a zone colder 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 Capay, 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 Capay, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostFebruary 7median — 50% chance of a later frost
Safe for tender plantsMarch 11only 10% chance of frost after
First fall frostDecember 5median — 10% chance by Nov 19
Growing season301 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 10 and returns around December 18.

From the NOAA station Woodland 1 Wnw, CA — 20 miles away, elevation 66 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 95607

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Dec 27 – Jan 10
SpinachSow outdoors · Dec 27 – Jan 17
Broccoli, cabbageStart indoors · Nov 29 – Dec 13
Broccoli, cabbageTransplant · Jan 17 – Jan 31
Onion setsPlant outdoors · Jan 10 – Jan 24
PotatoesPlant outdoors · Jan 17 – Jan 31
LettuceSow outdoors · Jan 10 – Jan 24
Carrots, beetsSow outdoors · Jan 17 – Jan 31
TomatoesStart indoors · Dec 13 – Dec 27
TomatoesTransplant · Feb 14 – Feb 28
Peppers, eggplantStart indoors · Nov 29 – Dec 13
Peppers, eggplantTransplant · Feb 21 – Mar 7
BeansSow outdoors · Feb 14 – Feb 28
Sweet cornSow outdoors · Feb 14 – Feb 28
Cucumbers, squashSow outdoors · Feb 14 – Feb 28
Fall lettuce, spinachSow outdoors · Oct 10 – Oct 24
GarlicPlant cloves · Nov 21 – Dec 26
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 7) and first fall frost (Dec 5) 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 95607 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 Capay, CA

The soil mapped at the center of ZIP 95607 is Dibble — clay loam, well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH6.1slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Dibble-Millsholm complex, 50 to 75 percent slopes, eroded.

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 95607; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Capay, CA

Summer high95 °Faverage high, July
Winter low38 °Faverage low, January
Hot days96days a year at 90 °F or more
Freezing nights9nights a year at 32 °F or less
Growing degree days4,768base 50 °F — the season’s usable heat
Longest day14 h 53 mindaylight on June 21
Shortest day9 h 27 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation20.5 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 56 °F, low 38 °F 56°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 47 °F 74°47° AprMay: average high 82 °F, low 52 °F 82°52° MayJune: average high 90 °F, low 57 °F 90°57° JunJuly: average high 95 °F, low 58 °F 95°58° JulAugust: average high 94 °F, low 57 °F 94°57° AugSeptember: average high 90 °F, low 56 °F 90°56° SepOctober: average high 80 °F, low 50 °F 80°50° OctNovember: average high 65 °F, low 43 °F 65°43° NovDecember: average high 56 °F, low 38 °F 56°38° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 4.46 in precipitation 4.5 JanFebruary: 4.20 in precipitation 4.2 FebMarch: 2.82 in precipitation 2.8 MarApril: 1.32 in precipitation 1.3 AprMay: 0.72 in precipitation 0.7 MayJune: 0.21 in precipitation 0.2 JunJuly: 0.00 in precipitation 0.0 JulAugust: 0.04 in precipitation 0.0 AugSeptember: 0.16 in precipitation 0.2 SepOctober: 0.81 in precipitation 0.8 OctNovember: 1.95 in precipitation 1.9 NovDecember: 3.81 in precipitation 3.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Woodland 1 Wnw, CA (20 mi away); precipitation: Woodland 1 Wnw, CA (20 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

956069a
Brooks, CA · 6 mi
959379b
Dunnigan, CA · 8 mi
956379b
Guinda, CA · 8 mi
956279b
Esparto, CA · 9 mi
956799b
Rumsey, CA · 10 mi
956989b
Zamora, CA · 12 mi
959129b
Arbuckle, CA · 12 mi
956539b
Madison, CA · 12 mi

California planting zones →

Questions about 95607

What planting zone is ZIP code 95607?

ZIP code 95607 (Capay, 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 Capay, CA?

The median last spring frost (32 °F) near 95607 is February 7; after March 11 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Woodland 1 Wnw station.

When is the first frost in Capay, CA?

The median first fall frost near 95607 is December 5, giving a median frost-free growing season of 301 days.

When should I plant tomatoes in 95607?

Start tomato seeds indoors around Dec 13 – Dec 27 and set transplants outside around Feb 14 – Feb 28, one to three weeks after the median last frost.

How much rain and snow does 95607 get?

About 20.5 inches of precipitation a year (NOAA 1991–2020 normals, Woodland 1 Wnw station).

How hot do summers get in Capay, CA?

The average high peaks at 95 °F in July, with about 96 days a year at 90 °F or more.

What kind of soil does 95607 have?

The USDA soil survey maps Dibble at the center of ZIP 95607: clay loam, well drained, pH about 6.1 (slightly acidic).

Did spring come early in Capay, CA in 2026?

Spring leaf-out near 95607 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 Capay, CA?

Intermediate onions: the longest day near 95607 is 14 h 53 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 95607 change?

Yes. The 2012 USDA map put 95607 in zone 9b; the 2023 map puts it in zone 9a. The newer map uses 1991–2020 data and more weather stations.