Frost dates for 77535Dayton, TX
The average last spring frost in Dayton is February 21 and the average first fall frost is December 1, giving a typical growing season of about 286 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 21
- Average first fall frost
- Dec 1
- Growing season
- 286 days
Safer after Mar 17 (1-in-10 risk)
Possible by Nov 9 (1-in-10 risk)
First frost typically in 36 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 10 · Mar 8 · Mar 31 | Nov 1 · Nov 18 · Dec 9 | 254 days | 100% |
| Frost / freeze (32°F) | Jan 22 · Feb 21 · Mar 17 | Nov 9 · Dec 1 · Jan 2 | 286 days | 100% |
| Hard freeze (28°F) | Dec 25 · Jan 30 · Mar 1 | Nov 24 · Dec 22 · Jan 23 | 327 days | 90% |
Planting calendar for Dayton
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 21 – Mar 29 |
| Tomatoes | Transplant outdoors | Mar 9 – Aug 11 |
| Peppers | Start seeds indoors | Jan 21 – Feb 21 |
| Peppers | Transplant outdoors | Mar 23 – Apr 23 |
| Eggplant | Start seeds indoors | Feb 7 – Mar 8 |
| Eggplant | Transplant outdoors | Mar 23 – Apr 23 |
| Cucumbers | Sow outdoors | Mar 23 – Aug 21 |
| Summer squash | Sow outdoors | Mar 9 – Apr 23 |
| Winter squash & pumpkins | Sow outdoors | Mar 23 – Apr 23 |
| Snap beans | Sow outdoors | Mar 9 – Sep 13 |
| Sweet corn | Sow outdoors | Mar 9 – Aug 11 |
| Watermelon & cantaloupe | Sow outdoors | Mar 23 – Apr 23 |
| Okra | Sow outdoors | Mar 16 – Apr 8 |
| Peas | Sow outdoors (spring) | Jan 21 – Mar 8 |
| Potatoes | Plant outdoors (spring) | Jan 21 – Mar 23 |
| Onions | Start seeds indoors (spring) | Dec 10 – Jan 6 |
| Onions | Transplant outdoors (spring) | Feb 7 – Mar 8 |
| Broccoli | Start seeds indoors (spring) | Jan 3 – Feb 6 |
| Broccoli | Transplant outdoors (spring) | Feb 7 – Mar 8 |
| Broccoli | Start seeds indoors (fall) | Aug 1 – Aug 11 |
| Broccoli | Transplant outdoors (fall) | Aug 31 – Sep 11 |
| Cabbage | Start seeds indoors (spring) | Dec 24 – Jan 21 |
| Cabbage | Transplant outdoors (spring) | Jan 21 – Feb 21 |
| Cabbage | Start seeds indoors (fall) | Jul 22 – Aug 21 |
| Cabbage | Transplant outdoors (fall) | Aug 21 – Sep 21 |
| Leaf lettuce | Sow outdoors (spring) | Jan 21 – Apr 8 |
| Leaf lettuce | Sow outdoors (fall) | Aug 21 – Oct 7 |
| Spinach | Sow outdoors (spring) | Jan 14 – Feb 27 |
| Spinach | Sow outdoors (fall) | Sep 7 – Oct 12 |
| Radishes | Sow outdoors (spring) | Jan 21 – Mar 13 |
| Radishes | Sow outdoors (fall) | Aug 21 – Oct 22 |
| Kale | Sow outdoors (spring) | Feb 7 – Feb 27 |
| Kale | Sow outdoors (fall) | Aug 14 – Sep 21 |
| Carrots | Sow outdoors (spring) | Feb 21 – Apr 8 |
| Carrots | Sow outdoors (fall) | Jul 22 – Sep 6 |
| Garlic | Plant outdoors (fall) | Nov 21 – Dec 22 |
Where these dates come from
ZIP code 77535 is matched to the NOAA station Liberty, TX, 9.7 km away, at 35 ft elevation (27 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Liberty, TX (used) | 35 ft | Feb 21 | Dec 1 |
| Baytown, TX | 26 ft | Feb 20 | Dec 4 |
| Anahuac, TX | 24 ft | Feb 12 | Dec 6 |
| Cleveland, TX | 196 ft | Mar 7 | Nov 20 |
Frost dates near Dayton
- Liberty, TX 77575 · last Feb 21, first Dec 1
- Mont Belvieu, TX 77580 · last Feb 20, first Dec 4
- Crosby, TX 77532 · last Feb 20, first Dec 4
- Raywood, TX 77582 · last Feb 21, first Dec 1
- Hardin, TX 77561 · last Feb 21, first Dec 1
- Huffman, TX 77336 · last Feb 20, first Dec 4
- Highlands, TX 77562 · last Feb 20, first Dec 4
- Daisetta, TX 77533 · last Feb 21, first Dec 1
Frequently asked questions
- When is the last frost in Dayton, TX?
- For ZIP code 77535, the average last spring frost (32°F) is February 21, based on NOAA 1991-2020 climate normals for the Liberty, TX weather station. There is a 1-in-10 chance of a frost after March 17.
- When is the first frost in Dayton, TX?
- The average first fall frost (32°F) is December 1. There is a 1-in-10 chance of frost by November 9, so tender plants are at risk from that point on.
- How long is the growing season in 77535?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 286 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.