Brea, CA frost dates
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone10aZone 10a
Gardening where frost is rare
Brea, 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.
How Brea compares
- Brea shares its weather station with Placentia, CA, 5 km away, so the two have the same frost dates.
About these dates
Based on 1991–2020 NOAA climate normals for the Anaheim, CA weather station, 7 km away (elevation 236 ft (72 m)).
ZIP codes in Brea: 92821 92822 92823
Frost dates near Brea
- Placentia rare frost
- Atwood rare frost
- Rowland Heights rare frost
- Fullerton rare frost
- Yorba Linda rare frost
- La Habra rare frost
- Diamond Bar Jan 8 · Dec 28
- Anaheim rare frost
- Walnut Jan 8 · Dec 28
- Villa Park rare frost
Frequently asked questions
When is the last frost in Brea, CA?
In most years Brea, 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.