Coronado, CA frost dates
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone10bZone 10b
Gardening where frost is rare
Coronado, 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 North Island Nas, CA weather station, 3 km away (elevation 26 ft (8 m)).
ZIP codes in Coronado: 92118 92178
Frost dates near Coronado
- National City rare frost
- San Diego rare frost
- Imperial Beach rare frost
- Bonita rare frost
- Chula Vista rare frost
- Lemon Grove Jan 6 · Dec 21
- La Mesa Jan 6 · Dec 21
- San Ysidro (San Diego) Jan 6 · Dec 31
- Spring Valley Jan 6 · Dec 21
- La Jolla rare frost
Frequently asked questions
When is the last frost in Coronado, CA?
In most years Coronado, 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.