La Crescenta, CA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 1 a year). Cover tender plants when frost is forecast.
How La Crescenta compares
- In a typical year, frost nights in La Crescenta fall between December 26 and January 2. In 1 year in 10 the first frost comes as early as December 5, or the last frost as late as January 31.
- La Crescenta shares its weather station with Burbank, CA, 8 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 11 |
| 50% (median) | January 2 |
| 10% (safe for tender plants) | January 31 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 5 |
| 50% (median) | December 26 |
| 90% (late) | January 18 |
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
La Crescenta, 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 Burbank Valley Pump Plt, CA weather station, 11 km away (elevation 656 ft (200 m)).
ZIP codes in La Crescenta: 91214 91224
Frost dates near La Crescenta
- Verdugo City Jan 2 · Dec 26
- Montrose Jan 8 · Jan 7
- La Canada Flintridge Jan 8 · Jan 7
- Tujunga Dec 31 · Dec 28
- Sunland Dec 31 · Dec 28
- Burbank Jan 2 · Dec 26
- Glendale Jan 2 · Dec 26
- Altadena Jan 8 · Jan 7
- Sun Valley Dec 31 · Dec 28
- Pasadena Jan 8 · Jan 7
Frequently asked questions
When is the last frost in La Crescenta, CA?
The median last spring frost in La Crescenta, CA is January 2. There is still about a 10% chance of frost after January 31, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in La Crescenta, CA?
The median first fall frost is December 26, with about a 10% chance of frost before December 5.
How long is the growing season in La Crescenta, CA?
About 358 days between the median last spring frost and first fall frost.
What planting zone is La Crescenta, CA?
La Crescenta, CA is in USDA hardiness zone 10a.