Frost dates for 79058Masterson, TX
The average last spring frost in Masterson is April 21 and the average first fall frost is October 24, giving a typical growing season of about 183 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 21
- Average first fall frost
- Oct 24
- Growing season
- 183 days
Safer after May 9 (1-in-10 risk)
Possible by Oct 5 (1-in-10 risk)
Last frost typically in 176 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) | Apr 16 · May 2 · May 19 | Sep 30 · Oct 14 · Oct 27 | 163 days | 100% |
| Frost / freeze (32°F) | Apr 4 · Apr 21 · May 9 | Oct 5 · Oct 24 · Nov 5 | 183 days | 100% |
| Hard freeze (28°F) | Mar 23 · Apr 10 · Apr 30 | Oct 15 · Nov 2 · Nov 15 | 203 days | 100% |
Planting calendar for Masterson
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 | Mar 21 – May 27 |
| Tomatoes | Transplant outdoors | May 7 – Jul 4 |
| Peppers | Start seeds indoors | Mar 21 – Apr 21 |
| Peppers | Transplant outdoors | May 21 – Jun 21 |
| Eggplant | Start seeds indoors | Apr 7 – May 6 |
| Eggplant | Transplant outdoors | May 21 – Jun 21 |
| Cucumbers | Sow outdoors | May 21 – Jul 14 |
| Summer squash | Sow outdoors | May 7 – Jun 21 |
| Winter squash & pumpkins | Sow outdoors | May 21 – Jun 21 |
| Snap beans | Sow outdoors | May 7 – Aug 6 |
| Sweet corn | Sow outdoors | May 7 – Jul 4 |
| Watermelon & cantaloupe | Sow outdoors | May 21 – Jun 21 |
| Okra | Sow outdoors | May 14 – Jun 6 |
| Peas | Sow outdoors (spring) | Mar 21 – May 6 |
| Potatoes | Plant outdoors (spring) | Mar 21 – May 21 |
| Onions | Start seeds indoors (spring) | Feb 7 – Mar 6 |
| Onions | Transplant outdoors (spring) | Apr 7 – May 6 |
| Broccoli | Start seeds indoors (spring) | Mar 3 – Apr 6 |
| Broccoli | Transplant outdoors (spring) | Apr 7 – May 6 |
| Broccoli | Start seeds indoors (fall) | Jun 24 – Jul 4 |
| Broccoli | Transplant outdoors (fall) | Jul 24 – Aug 4 |
| Cabbage | Start seeds indoors (spring) | Feb 21 – Mar 21 |
| Cabbage | Transplant outdoors (spring) | Mar 21 – Apr 21 |
| Cabbage | Start seeds indoors (fall) | Jun 14 – Jul 14 |
| Cabbage | Transplant outdoors (fall) | Jul 14 – Aug 14 |
| Leaf lettuce | Sow outdoors (spring) | Mar 21 – Jun 6 |
| Leaf lettuce | Sow outdoors (fall) | Jul 14 – Aug 30 |
| Spinach | Sow outdoors (spring) | Mar 14 – Apr 27 |
| Spinach | Sow outdoors (fall) | Jul 31 – Sep 4 |
| Radishes | Sow outdoors (spring) | Mar 21 – May 11 |
| Radishes | Sow outdoors (fall) | Jul 14 – Sep 14 |
| Kale | Sow outdoors (spring) | Apr 7 – Apr 27 |
| Kale | Sow outdoors (fall) | Jul 7 – Aug 14 |
| Carrots | Sow outdoors (spring) | Apr 21 – Jun 6 |
| Carrots | Sow outdoors (fall) | Jun 14 – Jul 30 |
| Garlic | Plant outdoors (fall) | Oct 14 – Nov 14 |
Where these dates come from
ZIP code 79058 is matched to the NOAA station Dumas, TX, 26.4 km away, at 3,655 ft elevation (46 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Dumas, TX (used) | 3,655 ft | Apr 21 | Oct 24 |
| Boys Rch, TX | 3,191 ft | Apr 19 | Oct 23 |
| Channing 2, TX | 3,790 ft | Apr 18 | Oct 25 |
| Sanford Dam, TX | 2,936 ft | Apr 20 | Oct 25 |
Frost dates near Masterson
- Amarillo, TX 79105 · last Apr 13, first Oct 27
- Dumas, TX 79029 · last Apr 21, first Oct 24
- Boys Ranch, TX 79010 · last Apr 19, first Oct 23
- Channing, TX 79018 · last Apr 18, first Oct 25
- Fritch, TX 79036 · last Apr 20, first Oct 25
- Sanford, TX 79078 · last Apr 20, first Oct 25
- Bushland, TX 79012 · last Apr 22, first Oct 21
- Sunray, TX 79086 · last Apr 21, first Oct 24
Frequently asked questions
- When is the last frost in Masterson, TX?
- For ZIP code 79058, the average last spring frost (32°F) is April 21, based on NOAA 1991-2020 climate normals for the Dumas, TX weather station. There is a 1-in-10 chance of a frost after May 9.
- When is the first frost in Masterson, TX?
- The average first fall frost (32°F) is October 24. There is a 1-in-10 chance of frost by October 5, so tender plants are at risk from that point on.
- How long is the growing season in 79058?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 183 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.