Frost dates for Barstow, 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
February 22
typical year
Safe to plant
March 24
frost is over in 9 of 10 years
First fall frost
November 23
typical year
Growing season
271 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 | – | Jan 25 – Feb 8 | – |
| Spinach | – | Jan 11 – Feb 1 | Sep 28 – Oct 12 |
| Lettuce | – | Jan 25 – Feb 15 | Sep 28 – Oct 12 |
| Radishes | – | Jan 25 – Mar 8 | Oct 12 – 26 |
| Onions | – | Jan 25 – Feb 8 | – |
| Potatoes | – | Feb 1 – 15 | – |
| Carrots | – | Feb 1 – 22 | Aug 31 – Sep 14 |
| Beets | – | Jan 25 – Feb 8 | Sep 14 – 28 |
| Kale | Dec 14 – 28 | Jan 25 – Feb 8 | Sep 14 – 28 |
| Broccoli | Dec 14 – 28 | Feb 8 – 22 | Sep 14 – 28 |
| Cabbage | Nov 30 – Dec 14 | Jan 25 – Feb 8 | Sep 14 – 28 |
| Garlic | – | – | Oct 12 – Nov 2 |
| Warm-season crops | |||
| Tomatoes | Jan 27 – Feb 10 | Mar 24 – Apr 7 | – |
| Peppers | Jan 20 – Feb 3 | Mar 31 – Apr 14 | – |
| Cucumbers | – | Mar 24 – Apr 14 | – |
| Zucchini | – | Mar 24 – Apr 21 | – |
| Pumpkins | – | Mar 24 – Apr 14 | – |
| Green beans | – | Mar 24 – Sep 14 | – |
| Sweet corn | – | Mar 24 – Apr 21 | – |
| Basil | Feb 17 – Mar 3 | Mar 31 – Apr 7 | – |
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 | March 24 | February 22 | January 29 |
| Fall frost before | November 9 | November 23 | December 8 |
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 January 30 (February 25 in a late year), and the first one in fall around December 6.
Towns that use these dates
This is the nearest NOAA station with frost records for 1 town.
Barstow
Where these dates come from
NOAA weather station BARSTOW, CA US (USC00040521), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 14 miles:
92311, 92347
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.