Rancho Mirage, CA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 0 a year). Cover tender plants when frost is forecast.
How Rancho Mirage compares
- In a typical year, frost nights in Rancho Mirage fall between January 9 and January 9. In 1 year in 10 the first frost comes as early as December 23, or the last frost as late as January 29.
- Rancho Mirage shares its weather station with Cathedral City, CA, 5 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 29 |
| 50% (median) | January 9 |
| 10% (safe for tender plants) | January 29 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 23 |
| 50% (median) | January 9 |
| 90% (late) | January 29 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Rancho Mirage, CA only freezes on a few winter nights, 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 Palm Springs Rgnl Ap, CA weather station, 10 km away (elevation 420 ft (128 m)).
Frost dates near Rancho Mirage
- Cathedral City Jan 9 · Jan 9
- Palm Desert Dec 31 · Dec 27
- Thousand Palms Jan 9 · Jan 9
- Indian Wells Dec 31 · Dec 27
- Palm Springs Jan 1 · Dec 31
- La Quinta Dec 31 · Dec 27
- Desert Hot Springs Jan 9 · Jan 9
- North Palm Springs Jan 1 · Dec 31
- Indio Dec 31 · Dec 27
- Coachella Dec 31 · Dec 27
Frequently asked questions
When is the last frost in Rancho Mirage, CA?
The median last spring frost in Rancho Mirage, CA is January 9. There is still about a 10% chance of frost after January 29, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Rancho Mirage, CA?
The median first fall frost is January 9, with about a 10% chance of frost before December 23.
How long is the growing season in Rancho Mirage, CA?
About 365 days between the median last spring frost and first fall frost.
What planting zone is Rancho Mirage, CA?
Rancho Mirage, CA is in USDA hardiness zone 10a.