Frost dates for 92309Baker, CA
The average last spring frost in Baker is February 14 and the average first fall frost is November 27, giving a typical growing season of about 287 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 14
- Average first fall frost
- Nov 27
- Growing season
- 287 days
Safer after Mar 4 (1-in-10 risk)
Possible by Nov 12 (1-in-10 risk)
First frost typically in 24 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Feb 11 · Mar 1 · Mar 28 | Nov 1 · Nov 17 · Nov 29 | 258 days | 100% |
| Frost / freeze (32°F) | Jan 25 · Feb 14 · Mar 4 | Nov 12 · Nov 27 · Dec 9 | 287 days | 100% |
| Hard freeze (28°F) | Dec 31 · Jan 30 · Feb 20 | Nov 24 · Dec 8 · Dec 26 | 318 days | 98% |
Planting calendar for Baker
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Jan 14 – Mar 22 |
| Tomatoes | Transplant outdoors | Mar 2 – Aug 7 |
| Peppers | Start seeds indoors | Jan 14 – Feb 14 |
| Peppers | Transplant outdoors | Mar 16 – Apr 16 |
| Eggplant | Start seeds indoors | Jan 31 – Mar 1 |
| Eggplant | Transplant outdoors | Mar 16 – Apr 16 |
| Cucumbers | Sow outdoors | Mar 16 – Aug 17 |
| Summer squash | Sow outdoors | Mar 2 – Apr 16 |
| Winter squash & pumpkins | Sow outdoors | Mar 16 – Apr 16 |
| Snap beans | Sow outdoors | Mar 2 – Sep 9 |
| Sweet corn | Sow outdoors | Mar 2 – Aug 7 |
| Watermelon & cantaloupe | Sow outdoors | Mar 16 – Apr 16 |
| Okra | Sow outdoors | Mar 9 – Apr 1 |
| Peas | Sow outdoors (spring) | Jan 14 – Mar 1 |
| Potatoes | Plant outdoors (spring) | Jan 14 – Mar 16 |
| Onions | Start seeds indoors (spring) | Dec 3 – Dec 30 |
| Onions | Transplant outdoors (spring) | Jan 31 – Mar 1 |
| Broccoli | Start seeds indoors (spring) | Dec 27 – Jan 30 |
| Broccoli | Transplant outdoors (spring) | Jan 31 – Mar 1 |
| Broccoli | Start seeds indoors (fall) | Jul 28 – Aug 7 |
| Broccoli | Transplant outdoors (fall) | Aug 27 – Sep 7 |
| Cabbage | Start seeds indoors (spring) | Dec 17 – Jan 14 |
| Cabbage | Transplant outdoors (spring) | Jan 14 – Feb 14 |
| Cabbage | Start seeds indoors (fall) | Jul 18 – Aug 17 |
| Cabbage | Transplant outdoors (fall) | Aug 17 – Sep 17 |
| Leaf lettuce | Sow outdoors (spring) | Jan 14 – Apr 1 |
| Leaf lettuce | Sow outdoors (fall) | Aug 17 – Oct 3 |
| Spinach | Sow outdoors (spring) | Jan 7 – Feb 20 |
| Spinach | Sow outdoors (fall) | Sep 3 – Oct 8 |
| Radishes | Sow outdoors (spring) | Jan 14 – Mar 6 |
| Radishes | Sow outdoors (fall) | Aug 17 – Oct 18 |
| Kale | Sow outdoors (spring) | Jan 31 – Feb 20 |
| Kale | Sow outdoors (fall) | Aug 10 – Sep 17 |
| Carrots | Sow outdoors (spring) | Feb 14 – Apr 1 |
| Carrots | Sow outdoors (fall) | Jul 18 – Sep 2 |
| Garlic | Plant outdoors (fall) | Nov 17 – Dec 18 |
Where these dates come from
ZIP code 92309 is matched to the NOAA station Baker, CA, 9.4 km away, at 962 ft elevation (275 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Baker, CA (used) | 962 ft | Feb 14 | Nov 27 |
| Mitchell Caverns, CA | 4,350 ft | Mar 6 | Dec 8 |
| Goodsprings, NV | 3,716 ft | Mar 17 | Nov 20 |
| Barstow Daggett Ap, CA | 1,917 ft | Feb 19 | Nov 26 |
Frost dates near Baker
- Mountain Pass, CA 92366 · last Mar 6, first Dec 8
- Cima, CA 92323 · last Mar 6, first Dec 8
- Fort Irwin, CA 92310 · last Feb 22, first Nov 23
- Tecopa, CA 92389 · last Mar 29, first Nov 3
- Jean, NV 89019 · last Feb 4, first Dec 5
- Shoshone, CA 92384 · last Mar 29, first Nov 3
- Ludlow, CA 92338 · last Feb 19, first Nov 26
- Nipton, CA 92364 · last Mar 7, first Nov 29
Frequently asked questions
- When is the last frost in Baker, CA?
- For ZIP code 92309, the average last spring frost (32°F) is February 14, based on NOAA 1991-2020 climate normals for the Baker, CA weather station. There is a 1-in-10 chance of a frost after March 4.
- When is the first frost in Baker, CA?
- The average first fall frost (32°F) is November 27. There is a 1-in-10 chance of frost by November 12, so tender plants are at risk from that point on.
- How long is the growing season in 92309?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 287 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.