Frost dates for 78028Kerrville, TX
The average last spring frost in Kerrville is March 27 and the average first fall frost is November 7, giving a typical growing season of about 226 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 27
- Average first fall frost
- Nov 7
- Growing season
- 226 days
Safer after Apr 16 (1-in-10 risk)
Possible by Oct 23 (1-in-10 risk)
First frost typically in 6 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 22 · Apr 8 · Apr 26 | Oct 12 · Oct 29 · Nov 13 | 202 days | 100% |
| Frost / freeze (32°F) | Mar 4 · Mar 27 · Apr 16 | Oct 23 · Nov 7 · Nov 26 | 226 days | 100% |
| Hard freeze (28°F) | Feb 18 · Mar 11 · Apr 5 | Nov 2 · Nov 18 · Dec 7 | 252 days | 100% |
Planting calendar for Kerrville
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 24 – May 2 |
| Tomatoes | Transplant outdoors | Apr 12 – Jul 18 |
| Peppers | Start seeds indoors | Feb 24 – Mar 27 |
| Peppers | Transplant outdoors | Apr 26 – May 27 |
| Eggplant | Start seeds indoors | Mar 13 – Apr 11 |
| Eggplant | Transplant outdoors | Apr 26 – May 27 |
| Cucumbers | Sow outdoors | Apr 26 – Jul 28 |
| Summer squash | Sow outdoors | Apr 12 – May 27 |
| Winter squash & pumpkins | Sow outdoors | Apr 26 – May 27 |
| Snap beans | Sow outdoors | Apr 12 – Aug 20 |
| Sweet corn | Sow outdoors | Apr 12 – Jul 18 |
| Watermelon & cantaloupe | Sow outdoors | Apr 26 – May 27 |
| Okra | Sow outdoors | Apr 19 – May 12 |
| Peas | Sow outdoors (spring) | Feb 24 – Apr 11 |
| Potatoes | Plant outdoors (spring) | Feb 24 – Apr 26 |
| Onions | Start seeds indoors (spring) | Jan 13 – Feb 9 |
| Onions | Transplant outdoors (spring) | Mar 13 – Apr 11 |
| Broccoli | Start seeds indoors (spring) | Feb 6 – Mar 12 |
| Broccoli | Transplant outdoors (spring) | Mar 13 – Apr 11 |
| Broccoli | Start seeds indoors (fall) | Jul 8 – Jul 18 |
| Broccoli | Transplant outdoors (fall) | Aug 7 – Aug 18 |
| Cabbage | Start seeds indoors (spring) | Jan 27 – Feb 24 |
| Cabbage | Transplant outdoors (spring) | Feb 24 – Mar 27 |
| Cabbage | Start seeds indoors (fall) | Jun 28 – Jul 28 |
| Cabbage | Transplant outdoors (fall) | Jul 28 – Aug 28 |
| Leaf lettuce | Sow outdoors (spring) | Feb 24 – May 12 |
| Leaf lettuce | Sow outdoors (fall) | Jul 28 – Sep 13 |
| Spinach | Sow outdoors (spring) | Feb 17 – Apr 2 |
| Spinach | Sow outdoors (fall) | Aug 14 – Sep 18 |
| Radishes | Sow outdoors (spring) | Feb 24 – Apr 16 |
| Radishes | Sow outdoors (fall) | Jul 28 – Sep 28 |
| Kale | Sow outdoors (spring) | Mar 13 – Apr 2 |
| Kale | Sow outdoors (fall) | Jul 21 – Aug 28 |
| Carrots | Sow outdoors (spring) | Mar 27 – May 12 |
| Carrots | Sow outdoors (fall) | Jun 28 – Aug 13 |
| Garlic | Plant outdoors (fall) | Oct 28 – Nov 28 |
Where these dates come from
ZIP code 78028 is matched to the NOAA station Kerrville 3 Nne, TX, 4.7 km away, at 1,797 ft elevation (199 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Kerrville 3 Nne, TX (used) | 1,797 ft | Mar 27 | Nov 7 |
| Medina 1Ne, TX | 1,712 ft | Mar 16 | Nov 15 |
| Harper 3Ene, TX | 2,110 ft | Mar 15 | Nov 15 |
| Fredericksburg, TX | 1,685 ft | Mar 18 | Nov 10 |
Frost dates near Kerrville
- Kerrville, TX 78029 · last Mar 27, first Nov 7
- Ingram, TX 78025 · last Mar 27, first Nov 7
- Center Point, TX 78010 · last Mar 27, first Nov 7
- Comfort, TX 78013 · last Mar 15, first Nov 13
- Medina, TX 78055 · last Mar 16, first Nov 15
- Harper, TX 78631 · last Mar 15, first Nov 15
- Hunt, TX 78024 · last Apr 3, first Nov 1
- Waring, TX 78074 · last Mar 15, first Nov 13
Frequently asked questions
- When is the last frost in Kerrville, TX?
- For ZIP code 78028, the average last spring frost (32°F) is March 27, based on NOAA 1991-2020 climate normals for the Kerrville 3 Nne, TX weather station. There is a 1-in-10 chance of a frost after April 16.
- When is the first frost in Kerrville, TX?
- The average first fall frost (32°F) is November 7. There is a 1-in-10 chance of frost by October 23, so tender plants are at risk from that point on.
- How long is the growing season in 78028?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 226 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.