Frost dates for Blythe, California
In a typical year, Blythe’s last spring frost lands around Jan 25 and the first fall frost around Dec 12, a growing season of about 321 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 9b.
Right now the growing season is open, with about 48 days until the typical first fall frost.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Dec 29 | Nov 28 |
| 50 percent | Jan 25 | Dec 12 |
| 90 percent | Feb 24 | Jan 3 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Blythe is typically around 71°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Blythe
- Cauliflower (Snow Crown)
- Arugula (Astro)
- Broccoli (Green Magic)
- Mustard greens (Red Giant)
- Cabbage (Red Acre)
- Bok choy (Toy Choi)
- Tatsoi (Tatsoi)
Timing comes from the same temperature engine the app uses, run against Blythe’s normals for today.
Common questions
When is the last frost in Blythe, California?
Blythe’s last spring frost falls around January 25 in a typical year. One year in ten it is done by December 29, and one year in ten frost holds on until February 24. Frost-sensitive planting usually waits for the late side of that band.
When is the first fall frost in Blythe?
The first fall frost arrives around December 12 in a typical year, as early as November 28 in an early year and as late as January 3 in a late one.
How long is the growing season in Blythe?
About 321 days, counted between the typical last spring frost and the typical first fall frost.
What USDA zone is Blythe in?
Blythe is in USDA hardiness zone 9b under the 2023 USDA Plant Hardiness Zone Map.
Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.
Nearby cities
- Yuma, AZ (around Jan 8 to Dec 28)
- Lake Havasu City, AZ (around Jan 5 to Dec 29)
- El Centro, CA (around Jan 6 to Dec 21)
- Indio, CA (around Dec 31 to Dec 27)
- Kingman, AZ (around Apr 2 to Nov 11)
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