Frost dates for 78021Fowlerton, TX
The average last spring frost in Fowlerton is March 3 and the average first fall frost is November 25, giving a typical growing season of about 266 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 3
- Average first fall frost
- Nov 25
- Growing season
- 266 days
Safer after Mar 24 (1-in-10 risk)
Possible by Nov 6 (1-in-10 risk)
First frost typically in 30 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 24 · Mar 14 · Apr 6 | Oct 30 · Nov 12 · Dec 1 | 244 days | 100% |
| Frost / freeze (32°F) | Feb 4 · Mar 3 · Mar 24 | Nov 6 · Nov 25 · Dec 14 | 266 days | 100% |
| Hard freeze (28°F) | Jan 14 · Feb 18 · Mar 15 | Nov 16 · Dec 4 · Jan 4 | 297 days | 99% |
Planting calendar for Fowlerton
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 31 – Apr 8 |
| Tomatoes | Transplant outdoors | Mar 19 – Aug 5 |
| Peppers | Start seeds indoors | Jan 31 – Mar 3 |
| Peppers | Transplant outdoors | Apr 2 – May 3 |
| Eggplant | Start seeds indoors | Feb 17 – Mar 18 |
| Eggplant | Transplant outdoors | Apr 2 – May 3 |
| Cucumbers | Sow outdoors | Apr 2 – Aug 15 |
| Summer squash | Sow outdoors | Mar 19 – May 3 |
| Winter squash & pumpkins | Sow outdoors | Apr 2 – May 3 |
| Snap beans | Sow outdoors | Mar 19 – Sep 7 |
| Sweet corn | Sow outdoors | Mar 19 – Aug 5 |
| Watermelon & cantaloupe | Sow outdoors | Apr 2 – May 3 |
| Okra | Sow outdoors | Mar 26 – Apr 18 |
| Peas | Sow outdoors (spring) | Jan 31 – Mar 18 |
| Potatoes | Plant outdoors (spring) | Jan 31 – Apr 2 |
| Onions | Start seeds indoors (spring) | Dec 20 – Jan 16 |
| Onions | Transplant outdoors (spring) | Feb 17 – Mar 18 |
| Broccoli | Start seeds indoors (spring) | Jan 13 – Feb 16 |
| Broccoli | Transplant outdoors (spring) | Feb 17 – Mar 18 |
| Broccoli | Start seeds indoors (fall) | Jul 26 – Aug 5 |
| Broccoli | Transplant outdoors (fall) | Aug 25 – Sep 5 |
| Cabbage | Start seeds indoors (spring) | Jan 3 – Jan 31 |
| Cabbage | Transplant outdoors (spring) | Jan 31 – Mar 3 |
| Cabbage | Start seeds indoors (fall) | Jul 16 – Aug 15 |
| Cabbage | Transplant outdoors (fall) | Aug 15 – Sep 15 |
| Leaf lettuce | Sow outdoors (spring) | Jan 31 – Apr 18 |
| Leaf lettuce | Sow outdoors (fall) | Aug 15 – Oct 1 |
| Spinach | Sow outdoors (spring) | Jan 24 – Mar 9 |
| Spinach | Sow outdoors (fall) | Sep 1 – Oct 6 |
| Radishes | Sow outdoors (spring) | Jan 31 – Mar 23 |
| Radishes | Sow outdoors (fall) | Aug 15 – Oct 16 |
| Kale | Sow outdoors (spring) | Feb 17 – Mar 9 |
| Kale | Sow outdoors (fall) | Aug 8 – Sep 15 |
| Carrots | Sow outdoors (spring) | Mar 3 – Apr 18 |
| Carrots | Sow outdoors (fall) | Jul 16 – Aug 31 |
| Garlic | Plant outdoors (fall) | Nov 15 – Dec 16 |
Where these dates come from
ZIP code 78021 is matched to the NOAA station Fowlerton, TX, 2 km away, at 300 ft elevation (45 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Fowlerton, TX (used) | 300 ft | Mar 3 | Nov 25 |
| Cross, TX | 285 ft | Mar 8 | Nov 17 |
| Tilden 4 Sse, TX | 345 ft | Feb 13 | Dec 3 |
| Cotulla La Salle Co Ap, TX | 476 ft | Feb 11 | Dec 3 |
Frost dates near Fowlerton
- Tilden, TX 78072 · last Mar 8, first Nov 17
- Cotulla, TX 78014 · last Feb 11, first Dec 3
- Dilley, TX 78017 · last Feb 16, first Dec 6
- Charlotte, TX 78011 · last Feb 26, first Nov 28
- Christine, TX 78012 · last Feb 27, first Nov 28
- Artesia Wells, TX 78001 · last Feb 11, first Dec 3
- Calliham, TX 78007 · last Feb 9, first Dec 8
- Pearsall, TX 78061 · last Feb 16, first Dec 6
Frequently asked questions
- When is the last frost in Fowlerton, TX?
- For ZIP code 78021, the average last spring frost (32°F) is March 3, based on NOAA 1991-2020 climate normals for the Fowlerton, TX weather station. There is a 1-in-10 chance of a frost after March 24.
- When is the first frost in Fowlerton, TX?
- The average first fall frost (32°F) is November 25. There is a 1-in-10 chance of frost by November 6, so tender plants are at risk from that point on.
- How long is the growing season in 78021?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 266 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.