Frost dates for 85325Bouse, AZ
The average last spring frost in Bouse is February 18 and the average first fall frost is November 28, giving a typical growing season of about 284 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 18
- Average first fall frost
- Nov 28
- Growing season
- 284 days
Safer after Mar 12 (1-in-10 risk)
Possible by Nov 12 (1-in-10 risk)
First frost typically in 32 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 17 · Mar 10 · Apr 3 | Nov 1 · Nov 17 · Nov 30 | 247 days | 100% |
| Frost / freeze (32°F) | Jan 24 · Feb 18 · Mar 12 | Nov 12 · Nov 28 · Dec 15 | 284 days | 100% |
| Hard freeze (28°F) | Dec 29 · Jan 29 · Feb 24 | Nov 24 · Dec 9 · Jan 2 | 322 days | 97% |
Planting calendar for Bouse
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 18 – Mar 26 |
| Tomatoes | Transplant outdoors | Mar 6 – Aug 8 |
| Peppers | Start seeds indoors | Jan 18 – Feb 18 |
| Peppers | Transplant outdoors | Mar 20 – Apr 20 |
| Eggplant | Start seeds indoors | Feb 4 – Mar 5 |
| Eggplant | Transplant outdoors | Mar 20 – Apr 20 |
| Cucumbers | Sow outdoors | Mar 20 – Aug 18 |
| Summer squash | Sow outdoors | Mar 6 – Apr 20 |
| Winter squash & pumpkins | Sow outdoors | Mar 20 – Apr 20 |
| Snap beans | Sow outdoors | Mar 6 – Sep 10 |
| Sweet corn | Sow outdoors | Mar 6 – Aug 8 |
| Watermelon & cantaloupe | Sow outdoors | Mar 20 – Apr 20 |
| Okra | Sow outdoors | Mar 13 – Apr 5 |
| Peas | Sow outdoors (spring) | Jan 18 – Mar 5 |
| Potatoes | Plant outdoors (spring) | Jan 18 – Mar 20 |
| Onions | Start seeds indoors (spring) | Dec 7 – Jan 3 |
| Onions | Transplant outdoors (spring) | Feb 4 – Mar 5 |
| Broccoli | Start seeds indoors (spring) | Dec 31 – Feb 3 |
| Broccoli | Transplant outdoors (spring) | Feb 4 – Mar 5 |
| Broccoli | Start seeds indoors (fall) | Jul 29 – Aug 8 |
| Broccoli | Transplant outdoors (fall) | Aug 28 – Sep 8 |
| Cabbage | Start seeds indoors (spring) | Dec 21 – Jan 18 |
| Cabbage | Transplant outdoors (spring) | Jan 18 – Feb 18 |
| Cabbage | Start seeds indoors (fall) | Jul 19 – Aug 18 |
| Cabbage | Transplant outdoors (fall) | Aug 18 – Sep 18 |
| Leaf lettuce | Sow outdoors (spring) | Jan 18 – Apr 5 |
| Leaf lettuce | Sow outdoors (fall) | Aug 18 – Oct 4 |
| Spinach | Sow outdoors (spring) | Jan 11 – Feb 24 |
| Spinach | Sow outdoors (fall) | Sep 4 – Oct 9 |
| Radishes | Sow outdoors (spring) | Jan 18 – Mar 10 |
| Radishes | Sow outdoors (fall) | Aug 18 – Oct 19 |
| Kale | Sow outdoors (spring) | Feb 4 – Feb 24 |
| Kale | Sow outdoors (fall) | Aug 11 – Sep 18 |
| Carrots | Sow outdoors (spring) | Feb 18 – Apr 5 |
| Carrots | Sow outdoors (fall) | Jul 19 – Sep 3 |
| Garlic | Plant outdoors (fall) | Nov 18 – Dec 19 |
Where these dates come from
ZIP code 85325 is matched to the NOAA station Bouse, AZ, 2.5 km away, at 925 ft elevation (40 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Bouse, AZ (used) | 925 ft | Feb 18 | Nov 28 |
| Parker, AZ | 420 ft | Jan 12 | Dec 19 |
| Quartzsite, AZ | 875 ft | Jan 28 | Dec 6 |
| Parker Resrvoir, CA | 738 ft | Jan 7 | Dec 31 |
Frost dates near Bouse
- Quartzsite, AZ 85346 · last Jan 28, first Dec 6
- Parker, AZ 85344 · last Jan 12, first Dec 19
- Poston, AZ 85371 · last Jan 12, first Dec 19
- Earp, CA 92242 · last Jan 12, first Dec 19
- Parker Dam, CA 92267 · last Jan 7, first Dec 31
- Salome, AZ 85348 · last Mar 17, first Nov 19
- Wenden, AZ 85357 · last Mar 17, first Nov 19
- Lake Havasu City, AZ 86406 · last Feb 18, first Dec 2
Frequently asked questions
- When is the last frost in Bouse, AZ?
- For ZIP code 85325, the average last spring frost (32°F) is February 18, based on NOAA 1991-2020 climate normals for the Bouse, AZ weather station. There is a 1-in-10 chance of a frost after March 12.
- When is the first frost in Bouse, AZ?
- The average first fall frost (32°F) is November 28. 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 85325?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 284 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.