Seeley, CA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 4 a year). Cover tender plants when frost is forecast.
How Seeley compares
- In a typical year, frost nights in Seeley fall between December 21 and January 6. In 1 year in 10 the first frost comes as early as December 5, or the last frost as late as February 6.
- Nearby Yuma, AZ, 107 km away, rarely gets frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 14 |
| 50% (median) | January 6 |
| 10% (safe for tender plants) | February 6 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 5 |
| 50% (median) | December 21 |
| 90% (late) | January 12 |
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
Seeley, 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 El Centro Naf, CA weather station, 3 km away (elevation -43 ft (-13 m)).
Frost dates near Seeley
- El Centro Jan 6 · Dec 21
- Imperial Jan 4 · Dec 26
- Calexico Jan 3 · Dec 27
- Heber Jan 3 · Dec 27
- Brawley Jan 16 · Dec 19
- Ocotillo Jan 6 · Dec 21
- Westmorland Jan 16 · Dec 19
- Holtville Jan 3 · Dec 27
- Calipatria Jan 16 · Dec 19
- Jacumba Apr 29 · Nov 1
Frequently asked questions
When is the last frost in Seeley, CA?
The median last spring frost in Seeley, CA is January 6. There is still about a 10% chance of frost after February 6, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Seeley, CA?
The median first fall frost is December 21, with about a 10% chance of frost before December 5.
How long is the growing season in Seeley, CA?
About 349 days between the median last spring frost and first fall frost.
What planting zone is Seeley, CA?
Seeley, CA is in USDA hardiness zone 10a.