Frost dates for Blythe, CA
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
January 25
typical year
Safe to plant
February 24
frost is over in 9 of 10 years
First fall frost
December 12
typical year
Growing season
325 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Dec 28 – Jan 11 | – |
| Spinach | – | Dec 14 – Jan 4 | Oct 17 – 31 |
| Lettuce | – | Dec 28 – Jan 18 | Oct 17 – 31 |
| Radishes | – | Dec 28 – Feb 8 | Oct 31 – Nov 14 |
| Onions | – | Dec 28 – Jan 11 | – |
| Potatoes | – | Jan 4 – 18 | – |
| Carrots | – | Jan 4 – 25 | Sep 19 – Oct 3 |
| Beets | – | Dec 28 – Jan 11 | Oct 3 – 17 |
| Kale | Nov 16 – 30 | Dec 28 – Jan 11 | Oct 3 – 17 |
| Broccoli | Nov 16 – 30 | Jan 11 – 25 | Oct 3 – 17 |
| Cabbage | Nov 2 – 16 | Dec 28 – Jan 11 | Oct 3 – 17 |
| Garlic | – | – | Oct 31 – Nov 21 |
| Warm-season crops | |||
| Tomatoes | Dec 30 – Jan 13 | Feb 24 – Mar 10 | – |
| Peppers | Dec 23 – Jan 6 | Mar 3 – 17 | – |
| Cucumbers | – | Feb 24 – Mar 17 | – |
| Zucchini | – | Feb 24 – Mar 24 | – |
| Pumpkins | – | Feb 24 – Mar 17 | – |
| Green beans | – | Feb 24 – Oct 3 | – |
| Sweet corn | – | Feb 24 – Mar 24 | – |
| Basil | Jan 20 – Feb 3 | Mar 3 – 10 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | February 24 | January 25 | December 29 |
| Fall frost before | November 28 | December 12 | January 3 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around December 30 (January 30 in a late year), and the first one in fall around December 22.
Towns that use these dates
This is the nearest NOAA station with frost records for 1 town.
Blythe
Where these dates come from
NOAA weather station BLYTHE, CA US (USC00040924), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 25 miles:
85328
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.