Frost dates for 74361Pryor, OK
The average last spring frost in Pryor is April 5 and the average first fall frost is October 30, giving a typical growing season of about 207 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 5
- Average first fall frost
- Oct 30
- Growing season
- 207 days
Safer after Apr 21 (1-in-10 risk)
Possible by Oct 15 (1-in-10 risk)
First frost typically in 5 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 1 · Apr 17 · May 2 | Oct 6 · Oct 21 · Nov 1 | 185 days | 100% |
| Frost / freeze (32°F) | Mar 19 · Apr 5 · Apr 21 | Oct 15 · Oct 30 · Nov 14 | 207 days | 100% |
| Hard freeze (28°F) | Mar 6 · Mar 23 · Apr 8 | Oct 24 · Nov 8 · Nov 27 | 231 days | 100% |
Planting calendar for Pryor
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 5 – May 11 |
| Tomatoes | Transplant outdoors | Apr 21 – Jul 10 |
| Peppers | Start seeds indoors | Mar 5 – Apr 5 |
| Peppers | Transplant outdoors | May 5 – Jun 5 |
| Eggplant | Start seeds indoors | Mar 22 – Apr 20 |
| Eggplant | Transplant outdoors | May 5 – Jun 5 |
| Cucumbers | Sow outdoors | May 5 – Jul 20 |
| Summer squash | Sow outdoors | Apr 21 – Jun 5 |
| Winter squash & pumpkins | Sow outdoors | May 5 – Jun 5 |
| Snap beans | Sow outdoors | Apr 21 – Aug 12 |
| Sweet corn | Sow outdoors | Apr 21 – Jul 10 |
| Watermelon & cantaloupe | Sow outdoors | May 5 – Jun 5 |
| Okra | Sow outdoors | Apr 28 – May 21 |
| Peas | Sow outdoors (spring) | Mar 5 – Apr 20 |
| Potatoes | Plant outdoors (spring) | Mar 5 – May 5 |
| Onions | Start seeds indoors (spring) | Jan 22 – Feb 18 |
| Onions | Transplant outdoors (spring) | Mar 22 – Apr 20 |
| Broccoli | Start seeds indoors (spring) | Feb 15 – Mar 21 |
| Broccoli | Transplant outdoors (spring) | Mar 22 – Apr 20 |
| Broccoli | Start seeds indoors (fall) | Jun 30 – Jul 10 |
| Broccoli | Transplant outdoors (fall) | Jul 30 – Aug 10 |
| Cabbage | Start seeds indoors (spring) | Feb 5 – Mar 5 |
| Cabbage | Transplant outdoors (spring) | Mar 5 – Apr 5 |
| Cabbage | Start seeds indoors (fall) | Jun 20 – Jul 20 |
| Cabbage | Transplant outdoors (fall) | Jul 20 – Aug 20 |
| Leaf lettuce | Sow outdoors (spring) | Mar 5 – May 21 |
| Leaf lettuce | Sow outdoors (fall) | Jul 20 – Sep 5 |
| Spinach | Sow outdoors (spring) | Feb 26 – Apr 11 |
| Spinach | Sow outdoors (fall) | Aug 6 – Sep 10 |
| Radishes | Sow outdoors (spring) | Mar 5 – Apr 25 |
| Radishes | Sow outdoors (fall) | Jul 20 – Sep 20 |
| Kale | Sow outdoors (spring) | Mar 22 – Apr 11 |
| Kale | Sow outdoors (fall) | Jul 13 – Aug 20 |
| Carrots | Sow outdoors (spring) | Apr 5 – May 21 |
| Carrots | Sow outdoors (fall) | Jun 20 – Aug 5 |
| Garlic | Plant outdoors (fall) | Oct 20 – Nov 20 |
Where these dates come from
ZIP code 74361 is matched to the NOAA station Pryor, OK, 2.4 km away, at 625 ft elevation (2 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Pryor, OK (used) | 625 ft | Apr 5 | Oct 30 |
| Claremore 2 Ene, OK | 588 ft | Apr 7 | Oct 30 |
| Spavinaw, OK | 685 ft | Apr 7 | Nov 2 |
| Wagoner, OK | 590 ft | Mar 29 | Nov 5 |
Frost dates near Pryor
- Pryor, OK 74362 · last Apr 7, first Nov 2
- Adair, OK 74330 · last Apr 7, first Nov 2
- Chouteau, OK 74337 · last Apr 7, first Oct 30
- Salina, OK 74365 · last Apr 7, first Nov 2
- Locust Grove, OK 74352 · last Apr 7, first Nov 2
- Foyil, OK 74031 · last Apr 7, first Oct 30
- Inola, OK 74036 · last Apr 7, first Oct 30
- Strang, OK 74367 · last Apr 7, first Nov 2
Frequently asked questions
- When is the last frost in Pryor, OK?
- For ZIP code 74361, the average last spring frost (32°F) is April 5, based on NOAA 1991-2020 climate normals for the Pryor, OK weather station. There is a 1-in-10 chance of a frost after April 21.
- When is the first frost in Pryor, OK?
- The average first fall frost (32°F) is October 30. There is a 1-in-10 chance of frost by October 15, so tender plants are at risk from that point on.
- How long is the growing season in 74361?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 207 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.