Frost dates for 75482Sulphur Springs, TX
The average last spring frost in Sulphur Springs is March 15 and the average first fall frost is November 14, giving a typical growing season of about 245 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 15
- Average first fall frost
- Nov 14
- Growing season
- 245 days
Safer after Apr 4 (1-in-10 risk)
Possible by Oct 29 (1-in-10 risk)
First frost typically in 13 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 11 · Mar 31 · Apr 17 | Oct 22 · Nov 4 · Nov 21 | 219 days | 100% |
| Frost / freeze (32°F) | Feb 25 · Mar 15 · Apr 4 | Oct 29 · Nov 14 · Dec 3 | 245 days | 100% |
| Hard freeze (28°F) | Feb 7 · Mar 2 · Mar 19 | Nov 7 · Nov 28 · Dec 18 | 272 days | 100% |
Planting calendar for Sulphur Springs
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 12 – Apr 20 |
| Tomatoes | Transplant outdoors | Mar 31 – Jul 25 |
| Peppers | Start seeds indoors | Feb 12 – Mar 15 |
| Peppers | Transplant outdoors | Apr 14 – May 15 |
| Eggplant | Start seeds indoors | Mar 1 – Mar 30 |
| Eggplant | Transplant outdoors | Apr 14 – May 15 |
| Cucumbers | Sow outdoors | Apr 14 – Aug 4 |
| Summer squash | Sow outdoors | Mar 31 – May 15 |
| Winter squash & pumpkins | Sow outdoors | Apr 14 – May 15 |
| Snap beans | Sow outdoors | Mar 31 – Aug 27 |
| Sweet corn | Sow outdoors | Mar 31 – Jul 25 |
| Watermelon & cantaloupe | Sow outdoors | Apr 14 – May 15 |
| Okra | Sow outdoors | Apr 7 – Apr 30 |
| Peas | Sow outdoors (spring) | Feb 12 – Mar 30 |
| Potatoes | Plant outdoors (spring) | Feb 12 – Apr 14 |
| Onions | Start seeds indoors (spring) | Jan 1 – Jan 28 |
| Onions | Transplant outdoors (spring) | Mar 1 – Mar 30 |
| Broccoli | Start seeds indoors (spring) | Jan 25 – Feb 28 |
| Broccoli | Transplant outdoors (spring) | Mar 1 – Mar 30 |
| Broccoli | Start seeds indoors (fall) | Jul 15 – Jul 25 |
| Broccoli | Transplant outdoors (fall) | Aug 14 – Aug 25 |
| Cabbage | Start seeds indoors (spring) | Jan 15 – Feb 12 |
| Cabbage | Transplant outdoors (spring) | Feb 12 – Mar 15 |
| Cabbage | Start seeds indoors (fall) | Jul 5 – Aug 4 |
| Cabbage | Transplant outdoors (fall) | Aug 4 – Sep 4 |
| Leaf lettuce | Sow outdoors (spring) | Feb 12 – Apr 30 |
| Leaf lettuce | Sow outdoors (fall) | Aug 4 – Sep 20 |
| Spinach | Sow outdoors (spring) | Feb 5 – Mar 21 |
| Spinach | Sow outdoors (fall) | Aug 21 – Sep 25 |
| Radishes | Sow outdoors (spring) | Feb 12 – Apr 4 |
| Radishes | Sow outdoors (fall) | Aug 4 – Oct 5 |
| Kale | Sow outdoors (spring) | Mar 1 – Mar 21 |
| Kale | Sow outdoors (fall) | Jul 28 – Sep 4 |
| Carrots | Sow outdoors (spring) | Mar 15 – Apr 30 |
| Carrots | Sow outdoors (fall) | Jul 5 – Aug 20 |
| Garlic | Plant outdoors (fall) | Nov 4 – Dec 5 |
Where these dates come from
ZIP code 75482 is matched to the NOAA station Sulphur Springs, TX, 3.6 km away, at 495 ft elevation (4 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Sulphur Springs, TX (used) | 495 ft | Mar 15 | Nov 14 |
| Cooper Dam, TX | 463 ft | Mar 18 | Nov 13 |
| Emory, TX | 484 ft | Mar 20 | Nov 12 |
| Mt Vernon, TX | 447 ft | Mar 15 | Nov 16 |
Frost dates near Sulphur Springs
- Sulphur Springs, TX 75483 · last Mar 15, first Nov 14
- Brashear, TX 75420 · last Mar 15, first Nov 14
- Como, TX 75431 · last Mar 15, first Nov 14
- Cumby, TX 75433 · last Mar 15, first Nov 14
- Dike, TX 75437 · last Mar 15, first Nov 16
- Pickton, TX 75471 · last Mar 15, first Nov 16
- Saltillo, TX 75478 · last Mar 15, first Nov 16
- Yantis, TX 75497 · last Mar 7, first Nov 23
Frequently asked questions
- When is the last frost in Sulphur Springs, TX?
- For ZIP code 75482, the average last spring frost (32°F) is March 15, based on NOAA 1991-2020 climate normals for the Sulphur Springs, TX weather station. There is a 1-in-10 chance of a frost after April 4.
- When is the first frost in Sulphur Springs, TX?
- The average first fall frost (32°F) is November 14. There is a 1-in-10 chance of frost by October 29, so tender plants are at risk from that point on.
- How long is the growing season in 75482?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 245 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.