Rowland Heights, CA frost dates
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone10aZone 10a
Gardening where frost is rare
Rowland Heights, CA rarely or never drops to freezing, 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 Anaheim, CA weather station, 14 km away (elevation 236 ft (72 m)).
Frost dates near Rowland Heights
- Walnut Jan 8 · Dec 28
- Hacienda Heights rare frost
- City Of Industry Jan 4 · Jan 2
- Brea rare frost
- La Puente Jan 4 · Jan 2
- La Habra rare frost
- West Covina Jan 8 · Dec 28
- Diamond Bar Jan 8 · Dec 28
- Fullerton rare frost
- Placentia rare frost
Frequently asked questions
When is the last frost in Rowland Heights, CA?
In most years Rowland Heights, CA has no frost at all. The nearest NOAA station averages 0 nights a year at or below 32°F — too few to calculate a typical frost date.