Frost dates for 73860Waynoka, OK
The average last spring frost in Waynoka is April 12 and the average first fall frost is October 24, giving a typical growing season of about 192 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 12
- Average first fall frost
- Oct 24
- Growing season
- 192 days
Safer after Apr 27 (1-in-10 risk)
Possible by Oct 9 (1-in-10 risk)
Last frost typically in 161 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 7 · Apr 22 · May 4 | Sep 30 · Oct 15 · Oct 28 | 175 days | 100% |
| Frost / freeze (32°F) | Mar 27 · Apr 12 · Apr 27 | Oct 9 · Oct 24 · Nov 6 | 192 days | 100% |
| Hard freeze (28°F) | Mar 14 · Apr 3 · Apr 19 | Oct 19 · Nov 2 · Nov 15 | 213 days | 100% |
Planting calendar for Waynoka
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 12 – May 18 |
| Tomatoes | Transplant outdoors | Apr 28 – Jul 4 |
| Peppers | Start seeds indoors | Mar 12 – Apr 12 |
| Peppers | Transplant outdoors | May 12 – Jun 12 |
| Eggplant | Start seeds indoors | Mar 29 – Apr 27 |
| Eggplant | Transplant outdoors | May 12 – Jun 12 |
| Cucumbers | Sow outdoors | May 12 – Jul 14 |
| Summer squash | Sow outdoors | Apr 28 – Jun 12 |
| Winter squash & pumpkins | Sow outdoors | May 12 – Jun 12 |
| Snap beans | Sow outdoors | Apr 28 – Aug 6 |
| Sweet corn | Sow outdoors | Apr 28 – Jul 4 |
| Watermelon & cantaloupe | Sow outdoors | May 12 – Jun 12 |
| Okra | Sow outdoors | May 5 – May 28 |
| Peas | Sow outdoors (spring) | Mar 12 – Apr 27 |
| Potatoes | Plant outdoors (spring) | Mar 12 – May 12 |
| Onions | Start seeds indoors (spring) | Jan 29 – Feb 25 |
| Onions | Transplant outdoors (spring) | Mar 29 – Apr 27 |
| Broccoli | Start seeds indoors (spring) | Feb 22 – Mar 28 |
| Broccoli | Transplant outdoors (spring) | Mar 29 – Apr 27 |
| Broccoli | Start seeds indoors (fall) | Jun 24 – Jul 4 |
| Broccoli | Transplant outdoors (fall) | Jul 24 – Aug 4 |
| Cabbage | Start seeds indoors (spring) | Feb 12 – Mar 12 |
| Cabbage | Transplant outdoors (spring) | Mar 12 – Apr 12 |
| Cabbage | Start seeds indoors (fall) | Jun 14 – Jul 14 |
| Cabbage | Transplant outdoors (fall) | Jul 14 – Aug 14 |
| Leaf lettuce | Sow outdoors (spring) | Mar 12 – May 28 |
| Leaf lettuce | Sow outdoors (fall) | Jul 14 – Aug 30 |
| Spinach | Sow outdoors (spring) | Mar 5 – Apr 18 |
| Spinach | Sow outdoors (fall) | Jul 31 – Sep 4 |
| Radishes | Sow outdoors (spring) | Mar 12 – May 2 |
| Radishes | Sow outdoors (fall) | Jul 14 – Sep 14 |
| Kale | Sow outdoors (spring) | Mar 29 – Apr 18 |
| Kale | Sow outdoors (fall) | Jul 7 – Aug 14 |
| Carrots | Sow outdoors (spring) | Apr 12 – May 28 |
| Carrots | Sow outdoors (fall) | Jun 14 – Jul 30 |
| Garlic | Plant outdoors (fall) | Oct 14 – Nov 14 |
Where these dates come from
ZIP code 73860 is matched to the NOAA station Waynoka, OK, 3 km away, at 1,508 ft elevation (51 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Waynoka, OK (used) | 1,508 ft | Apr 12 | Oct 24 |
| Alva 7Ssw Mesonet, OK | 1,440 ft | Apr 11 | Oct 26 |
| Alva 1W, OK | 1,464 ft | Apr 10 | Oct 28 |
| Freedom 3Ssw Mesonet, OK | 1,738 ft | Apr 13 | Oct 27 |
Frost dates near Waynoka
- Hopeton, OK 73746 · last Apr 11, first Oct 26
- Dacoma, OK 73731 · last Apr 15, first Oct 29
- Alva, OK 73717 · last Apr 10, first Oct 28
- Mooreland, OK 73852 · last Apr 19, first Oct 26
- Carmen, OK 73726 · last Apr 9, first Oct 31
- Freedom, OK 73842 · last Apr 19, first Oct 17
- Aline, OK 73716 · last Apr 9, first Oct 31
- Chester, OK 73838 · last Apr 19, first Oct 26
Frequently asked questions
- When is the last frost in Waynoka, OK?
- For ZIP code 73860, the average last spring frost (32°F) is April 12, based on NOAA 1991-2020 climate normals for the Waynoka, OK weather station. There is a 1-in-10 chance of a frost after April 27.
- When is the first frost in Waynoka, OK?
- The average first fall frost (32°F) is October 24. There is a 1-in-10 chance of frost by October 9, so tender plants are at risk from that point on.
- How long is the growing season in 73860?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 192 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.