Frost dates for 74536Clayton, OK
The average last spring frost in Clayton is April 11 and the average first fall frost is October 27, giving a typical growing season of about 199 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 11
- Average first fall frost
- Oct 27
- Growing season
- 199 days
Safer after Apr 27 (1-in-10 risk)
Possible by Oct 12 (1-in-10 risk)
First frost typically in 0 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 5 · Apr 21 · May 5 | Oct 2 · Oct 18 · Nov 1 | 181 days | 100% |
| Frost / freeze (32°F) | Mar 25 · Apr 11 · Apr 27 | Oct 12 · Oct 27 · Nov 9 | 199 days | 100% |
| Hard freeze (28°F) | Mar 9 · Mar 31 · Apr 19 | Oct 18 · Nov 4 · Nov 24 | 220 days | 100% |
Planting calendar for Clayton
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 11 – May 17 |
| Tomatoes | Transplant outdoors | Apr 27 – Jul 7 |
| Peppers | Start seeds indoors | Mar 11 – Apr 11 |
| Peppers | Transplant outdoors | May 11 – Jun 11 |
| Eggplant | Start seeds indoors | Mar 28 – Apr 26 |
| Eggplant | Transplant outdoors | May 11 – Jun 11 |
| Cucumbers | Sow outdoors | May 11 – Jul 17 |
| Summer squash | Sow outdoors | Apr 27 – Jun 11 |
| Winter squash & pumpkins | Sow outdoors | May 11 – Jun 11 |
| Snap beans | Sow outdoors | Apr 27 – Aug 9 |
| Sweet corn | Sow outdoors | Apr 27 – Jul 7 |
| Watermelon & cantaloupe | Sow outdoors | May 11 – Jun 11 |
| Okra | Sow outdoors | May 4 – May 27 |
| Peas | Sow outdoors (spring) | Mar 11 – Apr 26 |
| Potatoes | Plant outdoors (spring) | Mar 11 – May 11 |
| Onions | Start seeds indoors (spring) | Jan 28 – Feb 24 |
| Onions | Transplant outdoors (spring) | Mar 28 – Apr 26 |
| Broccoli | Start seeds indoors (spring) | Feb 21 – Mar 27 |
| Broccoli | Transplant outdoors (spring) | Mar 28 – Apr 26 |
| Broccoli | Start seeds indoors (fall) | Jun 27 – Jul 7 |
| Broccoli | Transplant outdoors (fall) | Jul 27 – Aug 7 |
| Cabbage | Start seeds indoors (spring) | Feb 11 – Mar 11 |
| Cabbage | Transplant outdoors (spring) | Mar 11 – Apr 11 |
| Cabbage | Start seeds indoors (fall) | Jun 17 – Jul 17 |
| Cabbage | Transplant outdoors (fall) | Jul 17 – Aug 17 |
| Leaf lettuce | Sow outdoors (spring) | Mar 11 – May 27 |
| Leaf lettuce | Sow outdoors (fall) | Jul 17 – Sep 2 |
| Spinach | Sow outdoors (spring) | Mar 4 – Apr 17 |
| Spinach | Sow outdoors (fall) | Aug 3 – Sep 7 |
| Radishes | Sow outdoors (spring) | Mar 11 – May 1 |
| Radishes | Sow outdoors (fall) | Jul 17 – Sep 17 |
| Kale | Sow outdoors (spring) | Mar 28 – Apr 17 |
| Kale | Sow outdoors (fall) | Jul 10 – Aug 17 |
| Carrots | Sow outdoors (spring) | Apr 11 – May 27 |
| Carrots | Sow outdoors (fall) | Jun 17 – Aug 2 |
| Garlic | Plant outdoors (fall) | Oct 17 – Nov 17 |
Where these dates come from
ZIP code 74536 is matched to the NOAA station Tuskahoma, OK, 9.5 km away, at 600 ft elevation (171 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Tuskahoma, OK (used) | 600 ft | Apr 11 | Oct 27 |
| Wilburton 9 Ene, OK | 635 ft | Apr 2 | Nov 5 |
| Antlers, OK | 470 ft | Apr 3 | Nov 1 |
| Mcalester Rgnl Ap, OK | 770 ft | Mar 31 | Nov 3 |
Frost dates near Clayton
- Tuskahoma, OK 74574 · last Apr 11, first Oct 27
- Snow, OK 74567 · last Apr 11, first Oct 27
- Nashoba, OK 74558 · last Apr 11, first Oct 27
- Albion, OK 74521 · last Apr 11, first Oct 27
- Daisy, OK 74540 · last Mar 27, first Nov 9
- Finley, OK 74543 · last Apr 3, first Nov 1
- Gowen, OK 74545 · last Mar 31, first Nov 3
- Hartshorne, OK 74547 · last Mar 31, first Nov 3
Frequently asked questions
- When is the last frost in Clayton, OK?
- For ZIP code 74536, the average last spring frost (32°F) is April 11, based on NOAA 1991-2020 climate normals for the Tuskahoma, OK weather station. There is a 1-in-10 chance of a frost after April 27.
- When is the first frost in Clayton, OK?
- The average first fall frost (32°F) is October 27. There is a 1-in-10 chance of frost by October 12, so tender plants are at risk from that point on.
- How long is the growing season in 74536?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 199 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.