Frost dates for 91225 — Glendale, CA
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 Glendale compares
- In a typical year, frost nights in Glendale 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.
- Nearby Los Angeles, CA, 12 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 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
Glendale, 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, 10 km away (elevation 656 ft (200 m)).
ZIP codes in Glendale: 91201 91202 91203 91204 91205 91206 91207 91208 91209 91210 91221 91222 91225 91226
Frost dates near Glendale
- Burbank Jan 2 · Dec 26
- Verdugo City Jan 2 · Dec 26
- Dodgertown rare frost
- Montrose Jan 8 · Jan 7
- Universal City Jan 2 · Dec 26
- La Canada Flintridge Jan 8 · Jan 7
- La Crescenta Jan 2 · Dec 26
- South Pasadena Jan 8 · Jan 7
Frequently asked questions
When is the last frost in Glendale, CA?
The median last spring frost in Glendale, 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 Glendale, 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 Glendale, CA?
About 358 days between the median last spring frost and first fall frost.
What planting zone is Glendale, CA?
Glendale, CA is in USDA hardiness zone 10a.