Frost dates for 73756Loyal, OK
The average last spring frost in Loyal is April 8 and the average first fall frost is November 1, giving a typical growing season of about 206 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 8
- Average first fall frost
- Nov 1
- Growing season
- 206 days
Safer after Apr 24 (1-in-10 risk)
Possible by Oct 19 (1-in-10 risk)
First frost typically in 7 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 4 · Apr 20 · May 2 | Oct 11 · Oct 23 · Nov 4 | 186 days | 100% |
| Frost / freeze (32°F) | Mar 23 · Apr 8 · Apr 24 | Oct 19 · Nov 1 · Nov 12 | 206 days | 100% |
| Hard freeze (28°F) | Mar 7 · Mar 29 · Apr 13 | Oct 26 · Nov 7 · Nov 23 | 224 days | 100% |
Planting calendar for Loyal
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 8 – May 14 |
| Tomatoes | Transplant outdoors | Apr 24 – Jul 12 |
| Peppers | Start seeds indoors | Mar 8 – Apr 8 |
| Peppers | Transplant outdoors | May 8 – Jun 8 |
| Eggplant | Start seeds indoors | Mar 25 – Apr 23 |
| Eggplant | Transplant outdoors | May 8 – Jun 8 |
| Cucumbers | Sow outdoors | May 8 – Jul 22 |
| Summer squash | Sow outdoors | Apr 24 – Jun 8 |
| Winter squash & pumpkins | Sow outdoors | May 8 – Jun 8 |
| Snap beans | Sow outdoors | Apr 24 – Aug 14 |
| Sweet corn | Sow outdoors | Apr 24 – Jul 12 |
| Watermelon & cantaloupe | Sow outdoors | May 8 – Jun 8 |
| Okra | Sow outdoors | May 1 – May 24 |
| Peas | Sow outdoors (spring) | Mar 8 – Apr 23 |
| Potatoes | Plant outdoors (spring) | Mar 8 – May 8 |
| Onions | Start seeds indoors (spring) | Jan 25 – Feb 21 |
| Onions | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (spring) | Feb 18 – Mar 24 |
| Broccoli | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (fall) | Jul 2 – Jul 12 |
| Broccoli | Transplant outdoors (fall) | Aug 1 – Aug 12 |
| Cabbage | Start seeds indoors (spring) | Feb 8 – Mar 8 |
| Cabbage | Transplant outdoors (spring) | Mar 8 – Apr 8 |
| Cabbage | Start seeds indoors (fall) | Jun 22 – Jul 22 |
| Cabbage | Transplant outdoors (fall) | Jul 22 – Aug 22 |
| Leaf lettuce | Sow outdoors (spring) | Mar 8 – May 24 |
| Leaf lettuce | Sow outdoors (fall) | Jul 22 – Sep 7 |
| Spinach | Sow outdoors (spring) | Mar 1 – Apr 14 |
| Spinach | Sow outdoors (fall) | Aug 8 – Sep 12 |
| Radishes | Sow outdoors (spring) | Mar 8 – Apr 28 |
| Radishes | Sow outdoors (fall) | Jul 22 – Sep 22 |
| Kale | Sow outdoors (spring) | Mar 25 – Apr 14 |
| Kale | Sow outdoors (fall) | Jul 15 – Aug 22 |
| Carrots | Sow outdoors (spring) | Apr 8 – May 24 |
| Carrots | Sow outdoors (fall) | Jun 22 – Aug 7 |
| Garlic | Plant outdoors (fall) | Oct 22 – Nov 22 |
Where these dates come from
ZIP code 73756 is matched to the NOAA station Kingfisher, OK, 20.9 km away, at 1,050 ft elevation (56 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Kingfisher, OK (used) | 1,050 ft | Apr 8 | Nov 1 |
| Kingfisher 1W Mesonet, OK | 1,059 ft | Apr 9 | Nov 1 |
| Okeene, OK | 1,215 ft | Apr 7 | Nov 2 |
| Hennessey 4 Ese, OK | 1,174 ft | Apr 14 | Oct 30 |
Frost dates near Loyal
- Omega, OK 73764 · last Apr 8, first Nov 1
- Dover, OK 73734 · last Apr 8, first Nov 1
- Kingfisher, OK 73750 · last Apr 8, first Nov 1
- Hitchcock, OK 73744 · last Apr 7, first Nov 2
- Hennessey, OK 73742 · last Apr 14, first Oct 30
- Okeene, OK 73763 · last Apr 7, first Nov 2
- Okarche, OK 73762 · last Apr 8, first Nov 1
- Watonga, OK 73772 · last Apr 14, first Oct 27
Frequently asked questions
- When is the last frost in Loyal, OK?
- For ZIP code 73756, the average last spring frost (32°F) is April 8, based on NOAA 1991-2020 climate normals for the Kingfisher, OK weather station. There is a 1-in-10 chance of a frost after April 24.
- When is the first frost in Loyal, OK?
- The average first fall frost (32°F) is November 1. There is a 1-in-10 chance of frost by October 19, so tender plants are at risk from that point on.
- How long is the growing season in 73756?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 206 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.