When is the last frost in Davis, CA?

The average last spring frost (50% probability of 32°F) in Davis is around February 10, based on NOAA/NCEI 1991–2020 normals at the Davis 2 Wsw Exp Farm, CA station (1.8 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Davis?

The average first fall frost in Davis, CA is around December 1, giving roughly a 295-day frost-free growing season.

What planting zone is Davis, CA?

Davis is in USDA plant hardiness zone 9b (average annual extreme minimum temperature 25 to 30°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Davis?

In Davis, CA the warmest month is July (avg high 93.3°F) and the coldest is December (avg low 37.9°F). It averages about 19.2″ of precipitation a year.

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Davis, CA Planting Calendar & Frost Dates

USDA hardiness zone 9b · ZIP 95616 · elevation 18′ · NOAA & USDA data

Davis is in USDA hardiness zone 9b (winters can dip to 25 to 30°F), with a growing season of about 295 days between the average last spring frost (February 10) and first fall frost (December 1). The warmest month is July (avg high 93.3°F); the coldest is December (avg low 37.9°F). It averages 19.2″ of precipitation a year. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

min temp 25 to 30°F

Last spring frost

February 10

avg (50% prob, 32°F)

First fall frost

December 1

avg (50% prob, 32°F)

Growing season

295 days

frost-free window

Warmest month

July

avg high 93.3°F

Month-by-month typical weather in Davis

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Davis 2 Wsw Exp Farm, CA (1.8 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)
January	55.5	38.4	46.9	4
February	60.7	41	50.9	3.9
March	66.3	43.9	55.1	2.7
April	72.5	46.6	59.6	1.2
May	81.1	51.6	66.3	0.7
June	88.6	55.8	72.2	0.3
July	93.3	57.3	75.3	0
August	92.8	56.3	74.6	0
September	89.8	54.8	72.3	0.1
October	79.9	49.6	64.7	0.8
November	65.4	42.5	54	1.8
December	56	37.9	47	3.7

What to plant when in Davis

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: December 30 · Transplant out: February 17
Peppers	warm	Start seeds indoors: December 16 · Transplant out: February 24
Cucumbers	warm	Direct sow: February 17
Zucchini / squash	warm	Direct sow: February 17
Bush beans	warm	Direct sow: February 17
Sweet corn	warm	Direct sow: February 17
Basil	warm	Transplant out: February 17
Peas	cool	Sow (spring): January 6 · Sow (fall): October 6
Spinach	cool	Sow (spring): December 30 · Sow (fall): October 6
Lettuce	cool	Sow (spring): January 13 · Sow (fall): October 6
Kale	cool	Transplant (spring): January 20 · Sow (fall): September 22
Broccoli	cool	Transplant (spring): January 27
Carrots	cool	Sow (spring): January 20 · Sow (fall): September 22
Onions	cool	Transplant (spring): January 13
Potatoes	cool	Plant seed potatoes: January 27
Radishes	cool	Sow (spring): January 13 · Sow (fall): October 20

Dates are computed from Davis's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

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Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in California

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Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Davis 2 Wsw Exp Farm, CA, 1.8 mi (confidence: high). Monthly weather normals: Davis 2 Wsw Exp Farm, CA, 1.8 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.