Travis Afb, CA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 8 a year). Cover tender plants when frost is forecast.
How Travis Afb compares
- In a typical year, frost nights in Travis Afb fall between December 14 and January 15. In 1 year in 10 the first frost comes as early as November 29, or the last frost as late as February 16.
- Travis Afb shares its weather station with Fairfield, CA, 12 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 22 |
| 50% (median) | January 15 |
| 10% (safe for tender plants) | February 16 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 29 |
| 50% (median) | December 14 |
| 90% (late) | January 9 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Travis Afb, CA only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Fairfield, CA weather station, 11 km away (elevation 39 ft (12 m)).
Frost dates near Travis Afb
- Elmira Feb 18 · Nov 28
- Suisun City Jan 15 · Dec 14
- Fairfield Jan 15 · Dec 14
- Vacaville Jan 31 · Dec 11
- Birds Landing Jan 12 · Dec 19
- Dixon Feb 10 · Dec 1
- Rio Vista Jan 12 · Dec 19
- Winters Feb 18 · Nov 30
- American Canyon Mar 5 · Nov 21
- Benicia Jan 17 · Dec 27
Frequently asked questions
When is the last frost in Travis Afb, CA?
The median last spring frost in Travis Afb, CA is January 15. There is still about a 10% chance of frost after February 16, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Travis Afb, CA?
The median first fall frost is December 14, with about a 10% chance of frost before November 29.
How long is the growing season in Travis Afb, CA?
About 333 days between the median last spring frost and first fall frost.
What planting zone is Travis Afb, CA?
Travis Afb, CA is in USDA hardiness zone 9b.