Frost dates for 92728 — Fountain Valley, CA
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone10bZone 10b
Gardening where frost is rare
Fountain Valley, 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 Fountain Valley compares
- Fountain Valley shares its weather station with Santa Ana, CA, 6 km away, so the two have the same frost dates.
About these dates
Based on 1991–2020 NOAA climate normals for the Santa Ana Fire Stn, CA weather station, 7 km away (elevation 135 ft (41 m)).
ZIP codes in Fountain Valley: 92708 92728
Frost dates near Fountain Valley
- Midway City rare frost
- Santa Ana rare frost
- Costa Mesa rare frost
- Huntington Beach rare frost
- Westminster rare frost
- Garden Grove rare frost
- Newport Beach rare frost
- Tustin rare frost
Frequently asked questions
When is the last frost in Fountain Valley, CA?
In most years Fountain Valley, 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.