Frost dates for 92658 — Newport Beach, CA
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone10bZone 10b
Gardening where frost is rare
Newport Beach, 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 Newport Beach compares
- Newport Beach shares its weather station with Costa Mesa, CA, 5 km away, so the two have the same frost dates.
About these dates
Based on 1991–2020 NOAA climate normals for the Santa Ana John Wayne Ap, CA weather station, 4 km away (elevation 56 ft (17 m)).
ZIP codes in Newport Beach: 92658 92659 92660 92661 92662 92663
Frost dates near Newport Beach
- Corona Del Mar rare frost
- Costa Mesa rare frost
- Newport Coast rare frost
- Irvine Jan 5 · Dec 25
- Aliso Viejo Jan 6 · Jan 2
- East Irvine Jan 5 · Dec 25
- Fountain Valley rare frost
- Santa Ana rare frost
Frequently asked questions
When is the last frost in Newport Beach, CA?
In most years Newport Beach, 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.