Frost dates for 79521Haskell, TX
The average last spring frost in Haskell is March 28 and the average first fall frost is November 7, giving a typical growing season of about 225 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 28
- Average first fall frost
- Nov 7
- Growing season
- 225 days
Safer after Apr 14 (1-in-10 risk)
Possible by Oct 25 (1-in-10 risk)
First frost typically in 11 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) | Mar 23 · Apr 8 · Apr 25 | Oct 17 · Oct 31 · Nov 13 | 203 days | 100% |
| Frost / freeze (32°F) | Mar 9 · Mar 28 · Apr 14 | Oct 25 · Nov 7 · Nov 24 | 225 days | 100% |
| Hard freeze (28°F) | Feb 24 · Mar 15 · Apr 3 | Nov 2 · Nov 17 · Dec 4 | 248 days | 100% |
Planting calendar for Haskell
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 | Feb 25 – May 3 |
| Tomatoes | Transplant outdoors | Apr 13 – Jul 18 |
| Peppers | Start seeds indoors | Feb 25 – Mar 28 |
| Peppers | Transplant outdoors | Apr 27 – May 28 |
| Eggplant | Start seeds indoors | Mar 14 – Apr 12 |
| Eggplant | Transplant outdoors | Apr 27 – May 28 |
| Cucumbers | Sow outdoors | Apr 27 – Jul 28 |
| Summer squash | Sow outdoors | Apr 13 – May 28 |
| Winter squash & pumpkins | Sow outdoors | Apr 27 – May 28 |
| Snap beans | Sow outdoors | Apr 13 – Aug 20 |
| Sweet corn | Sow outdoors | Apr 13 – Jul 18 |
| Watermelon & cantaloupe | Sow outdoors | Apr 27 – May 28 |
| Okra | Sow outdoors | Apr 20 – May 13 |
| Peas | Sow outdoors (spring) | Feb 25 – Apr 12 |
| Potatoes | Plant outdoors (spring) | Feb 25 – Apr 27 |
| Onions | Start seeds indoors (spring) | Jan 14 – Feb 10 |
| Onions | Transplant outdoors (spring) | Mar 14 – Apr 12 |
| Broccoli | Start seeds indoors (spring) | Feb 7 – Mar 13 |
| Broccoli | Transplant outdoors (spring) | Mar 14 – Apr 12 |
| Broccoli | Start seeds indoors (fall) | Jul 8 – Jul 18 |
| Broccoli | Transplant outdoors (fall) | Aug 7 – Aug 18 |
| Cabbage | Start seeds indoors (spring) | Jan 28 – Feb 25 |
| Cabbage | Transplant outdoors (spring) | Feb 25 – Mar 28 |
| Cabbage | Start seeds indoors (fall) | Jun 28 – Jul 28 |
| Cabbage | Transplant outdoors (fall) | Jul 28 – Aug 28 |
| Leaf lettuce | Sow outdoors (spring) | Feb 25 – May 13 |
| Leaf lettuce | Sow outdoors (fall) | Jul 28 – Sep 13 |
| Spinach | Sow outdoors (spring) | Feb 18 – Apr 3 |
| Spinach | Sow outdoors (fall) | Aug 14 – Sep 18 |
| Radishes | Sow outdoors (spring) | Feb 25 – Apr 17 |
| Radishes | Sow outdoors (fall) | Jul 28 – Sep 28 |
| Kale | Sow outdoors (spring) | Mar 14 – Apr 3 |
| Kale | Sow outdoors (fall) | Jul 21 – Aug 28 |
| Carrots | Sow outdoors (spring) | Mar 28 – May 13 |
| Carrots | Sow outdoors (fall) | Jun 28 – Aug 13 |
| Garlic | Plant outdoors (fall) | Oct 28 – Nov 28 |
Where these dates come from
ZIP code 79521 is matched to the NOAA station Haskell, TX, 1 km away, at 1,590 ft elevation (9 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Haskell, TX (used) | 1,590 ft | Mar 28 | Nov 7 |
| Stamford 1, TX | 1,612 ft | Mar 23 | Nov 11 |
| Munday, TX | 1,480 ft | Mar 26 | Nov 11 |
| Anson, TX | 1,717 ft | Mar 31 | Nov 6 |
Frost dates near Haskell
- Rule, TX 79547 · last Mar 28, first Nov 7
- Weinert, TX 76388 · last Mar 28, first Nov 7
- Rochester, TX 79544 · last Mar 28, first Nov 7
- Stamford, TX 79553 · last Mar 23, first Nov 11
- O Brien, TX 79539 · last Mar 28, first Nov 7
- Knox City, TX 79529 · last Mar 28, first Nov 7
- Old Glory, TX 79540 · last Mar 29, first Nov 7
- Avoca, TX 79503 · last Mar 23, first Nov 11
Frequently asked questions
- When is the last frost in Haskell, TX?
- For ZIP code 79521, the average last spring frost (32°F) is March 28, based on NOAA 1991-2020 climate normals for the Haskell, TX weather station. There is a 1-in-10 chance of a frost after April 14.
- When is the first frost in Haskell, TX?
- The average first fall frost (32°F) is November 7. There is a 1-in-10 chance of frost by October 25, so tender plants are at risk from that point on.
- How long is the growing season in 79521?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 225 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.