Frost dates for 92799 — Santa Ana, CA
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone10bZone 10b
Gardening where frost is rare
Santa Ana, 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 Santa Ana Fire Stn, CA weather station, 5 km away (elevation 135 ft (41 m)).
ZIP codes in Santa Ana: 92701 92702 92703 92704 92705 92706 92707 92711 92712 92735 92799
Frost dates near Santa Ana
- Fountain Valley rare frost
- Costa Mesa rare frost
- Midway City rare frost
- Garden Grove rare frost
- Huntington Beach rare frost
- Westminster rare frost
- Tustin rare frost
- Newport Beach rare frost
Frequently asked questions
When is the last frost in Santa Ana, CA?
In most years Santa Ana, 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.