When Is the Last Frost?

Exeter, CA frost dates

Last spring frostFeb 5median date
First fall frostDec 8median date
Growing season306 daysfrost-free
Hardiness zone9bZone 9b

Frost is light and occasional here — typically a few cold nights around midwinter (about 16 a year). Cover tender plants when frost is forecast.

How Exeter compares

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)January 1
50% (median)February 5
10% (safe for tender plants)March 20
First fall frost
Chance of frost beforeDate
10% (early)November 23
50% (median)December 8
90% (late)January 8

Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.

Planting calendar for Exeter, CA

Exeter, CA frost dates — last frost Feb 5, first frost Dec 8, zone 9b. whenisthelastfrost.com

In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.

Crop
JFMAMJJASOND
Start indoors: Nov 13 to Nov 27Transplant outside: Jan 8 to Jan 22
Start indoors: Nov 27 to Dec 11Transplant outside: Feb 19 to Mar 5
Start indoors: Nov 27 to Dec 11Transplant outside: Feb 19 to Mar 5
Start indoors: Dec 11 to Dec 25Transplant outside: Feb 12 to Feb 26
Start indoors: Dec 11 to Dec 25Transplant outside: Jan 15 to Jan 29Sow outdoors: Jan 8 to Feb 12Plant for fall: Oct 13 to Nov 10
Start indoors: Dec 11 to Dec 25Transplant outside: Jan 8 to Jan 22Sow outdoors: Jan 8 to Jan 22Plant for fall: Sep 29 to Oct 20
Start indoors: Dec 11 to Dec 25Transplant outside: Jan 22 to Feb 5Plant for fall: Sep 1 to Sep 22
Start indoors: Dec 11 to Dec 25Transplant outside: Jan 15 to Jan 29Plant for fall: Sep 1 to Sep 22
Start indoors: Dec 11 to Dec 25Transplant outside: Jan 22 to Feb 5Plant for fall: Sep 1 to Sep 22
Start indoors: Dec 25 to Jan 8Start indoors: Dec 25 to Jan 8Transplant outside: Feb 26 to Mar 12Sow outdoors: Feb 26 to Mar 12
Start indoors: Dec 25 to Jan 8Start indoors: Dec 25 to Jan 8Transplant outside: Feb 12 to Feb 26
Sow outdoors: Dec 25 to Jan 15Sow outdoors: Dec 25 to Jan 15Plant for fall: Sep 15 to Oct 6
Sow outdoors: Dec 25 to Jan 15Sow outdoors: Dec 25 to Jan 15Plant for fall: Oct 13 to Nov 3
Sow outdoors: Jan 1 to Feb 12Plant for fall: Oct 27 to Nov 17
Start indoors: Jan 8 to Jan 15Transplant outside: Feb 19 to Feb 26Sow outdoors: Feb 12 to Feb 26Plant for fall: Sep 22 to Oct 6
Start indoors: Jan 8 to Jan 15Sow outdoors: Feb 12 to Feb 26Plant for fall: Sep 29 to Oct 13
Start indoors: Jan 8 to Jan 15Sow outdoors: Feb 12 to Feb 26
Start indoors: Jan 8 to Jan 15Transplant outside: Feb 19 to Mar 5
Sow outdoors: Jan 15 to Feb 12Plant for fall: Sep 15 to Sep 29
Sow outdoors: Jan 15 to Feb 12Plant for fall: Sep 29 to Oct 13
Sow outdoors: Jan 15 to Feb 5
Sow outdoors: Jan 22 to Feb 19Plant for fall: Sep 29 to Oct 13
Sow outdoors: Jan 22 to Feb 12Plant for fall: Oct 13 to Nov 3
Sow outdoors: Feb 12 to Mar 5Plant for fall: Sep 22 to Oct 6
Sow outdoors: Feb 12 to Feb 26
Transplant outside: Feb 19 to Mar 12
Plant for fall: Nov 24 to Dec 29
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates

When to plant vegetables in Exeter, CA

CropStart indoorsTransplantSow outdoorsFall crop
OnionsNov 13 – Nov 27Jan 8 – Jan 22——
PeppersNov 27 – Dec 11Feb 19 – Mar 5——
EggplantNov 27 – Dec 11Feb 19 – Mar 5——
TomatoesDec 11 – Dec 25Feb 12 – Feb 26——
LettuceDec 11 – Dec 25Jan 15 – Jan 29Jan 8 – Feb 12Oct 13 – Nov 10
KaleDec 11 – Dec 25Jan 8 – Jan 22Jan 8 – Jan 22Sep 29 – Oct 20
BroccoliDec 11 – Dec 25Jan 22 – Feb 5—Sep 1 – Sep 22
CabbageDec 11 – Dec 25Jan 15 – Jan 29—Sep 1 – Sep 22
CauliflowerDec 11 – Dec 25Jan 22 – Feb 5—Sep 1 – Sep 22
OkraDec 25 – Jan 8Feb 26 – Mar 12Feb 26 – Mar 12—
BasilDec 25 – Jan 8Feb 12 – Feb 26——
Peas——Dec 25 – Jan 15Sep 15 – Oct 6
Spinach——Dec 25 – Jan 15Oct 13 – Nov 3
Radishes——Jan 1 – Feb 12Oct 27 – Nov 17
CucumbersJan 8 – Jan 15Feb 19 – Feb 26Feb 12 – Feb 26Sep 22 – Oct 6
Zucchini & Summer SquashJan 8 – Jan 15—Feb 12 – Feb 26Sep 29 – Oct 13
Winter Squash & PumpkinsJan 8 – Jan 15—Feb 12 – Feb 26—
Melons & WatermelonJan 8 – Jan 15Feb 19 – Mar 5——
Carrots——Jan 15 – Feb 12Sep 15 – Sep 29
Beets——Jan 15 – Feb 12Sep 29 – Oct 13
Potatoes——Jan 15 – Feb 5—
Swiss Chard——Jan 22 – Feb 19Sep 29 – Oct 13
Cilantro——Jan 22 – Feb 12Oct 13 – Nov 3
Green Beans——Feb 12 – Mar 5Sep 22 – Oct 6
Sweet Corn——Feb 12 – Feb 26—
Sweet Potatoes—Feb 19 – Mar 12——
Garlic———Nov 24 – Dec 29

Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.

About these dates

Based on 1991–2020 NOAA climate normals for the Lemon Cove, CA weather station, 13 km away (elevation 512 ft (156 m)).

Frost dates near Exeter

Frequently asked questions

When is the last frost in Exeter, CA?

The median last spring frost in Exeter, CA is February 5. There is still about a 10% chance of frost after March 20, so wait until then to plant frost-tender crops like tomatoes and peppers.

When is the first frost in Exeter, CA?

The median first fall frost is December 8, with about a 10% chance of frost before November 23.

How long is the growing season in Exeter, CA?

About 306 days between the median last spring frost and first fall frost.

What planting zone is Exeter, CA?

Exeter, CA is in USDA hardiness zone 9b.

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