Frost dates for 94555 — Fremont, CA
Frost is light and occasional here — typically a few cold nights around midwinter (about 3 a year). Cover tender plants when frost is forecast.
How Fremont compares
- In a typical year, frost nights in Fremont fall between December 22 and January 7. In 1 year in 10 the first frost comes as early as December 2, or the last frost as late as February 7.
- Nearby Oakland, CA, 30 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 7 |
| 10% (safe for tender plants) | February 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 2 |
| 50% (median) | December 22 |
| 90% (late) | January 21 |
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
Fremont, 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 Fremont, CA weather station, 4 km away (elevation 39 ft (12 m)).
ZIP codes in Fremont: 94536 94537 94538 94539 94555
Frost dates near Fremont
- Union City Jan 7 · Dec 22
- Newark Jan 7 · Dec 22
- Hayward Jan 2 · Dec 25
- Sunol Feb 15 · Dec 2
- San Lorenzo Jan 2 · Dec 25
- Castro Valley Jan 2 · Dec 25
- San Leandro Jan 2 · Dec 25
- Palo Alto Feb 1 · Dec 7
Frequently asked questions
When is the last frost in Fremont, CA?
The median last spring frost in Fremont, CA is January 7. There is still about a 10% chance of frost after February 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Fremont, CA?
The median first fall frost is December 22, with about a 10% chance of frost before December 2.
How long is the growing season in Fremont, CA?
About 349 days between the median last spring frost and first fall frost.
What planting zone is Fremont, CA?
Fremont, CA is in USDA hardiness zone 10a.