Frost dates for 91715 — City Of Industry, 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 City Of Industry compares
- In a typical year, frost nights in City Of Industry fall between January 2 and January 4. In 1 year in 10 the first frost comes as early as December 18, or the last frost as late as January 28.
- Nearby Hacienda Heights, CA, 3 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 19 |
| 50% (median) | January 4 |
| 10% (safe for tender plants) | January 28 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 18 |
| 50% (median) | January 2 |
| 90% (late) | January 26 |
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
City Of Industry, 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 San Gabriel Fire Dept, CA weather station, 15 km away (elevation 364 ft (111 m)).
ZIP codes in City Of Industry: 91714 91715 91716
Frost dates near City Of Industry
- La Puente Jan 4 · Jan 2
- Hacienda Heights rare frost
- West Covina Jan 8 · Dec 28
- Rowland Heights rare frost
- Baldwin Park Jan 4 · Jan 2
- El Monte Jan 4 · Jan 2
- South El Monte Jan 4 · Jan 2
- Whittier rare frost
Frequently asked questions
When is the last frost in City Of Industry, CA?
The median last spring frost in City Of Industry, CA is January 4. There is still about a 10% chance of frost after January 28, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in City Of Industry, CA?
The median first fall frost is January 2, with about a 10% chance of frost before December 18.
How long is the growing season in City Of Industry, CA?
About 363 days between the median last spring frost and first fall frost.
What planting zone is City Of Industry, CA?
City Of Industry, CA is in USDA hardiness zone 10b.