Frost dates for 82844Wolf, WY
The average last spring frost in Wolf is May 21 and the average first fall frost is September 23, giving a typical growing season of about 123 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 21
- Average first fall frost
- Sep 23
- Growing season
- 123 days
Safer after Jun 6 (1-in-10 risk)
Possible by Sep 9 (1-in-10 risk)
Last frost typically in 206 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) | May 21 · Jun 4 · Jun 19 | Aug 30 · Sep 13 · Sep 25 | 98 days | 100% |
| Frost / freeze (32°F) | May 7 · May 21 · Jun 6 | Sep 9 · Sep 23 · Oct 6 | 123 days | 100% |
| Hard freeze (28°F) | Apr 25 · May 7 · May 22 | Sep 20 · Oct 3 · Oct 17 | 147 days | 100% |
Planting calendar for Wolf
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 | Apr 20 – Jun 26 |
| Tomatoes | Transplant outdoors | Jun 6 – Jun 3 |
| Peppers | Start seeds indoors | Apr 20 – May 21 |
| Peppers | Transplant outdoors | Jun 20 – Jul 21 |
| Eggplant | Start seeds indoors | May 7 – Jun 5 |
| Eggplant | Transplant outdoors | Jun 20 – Jul 21 |
| Cucumbers | Sow outdoors | Jun 20 – Jun 13 |
| Summer squash | Sow outdoors | Jun 6 – Jul 21 |
| Winter squash & pumpkins | Sow outdoors | Jun 20 – Jul 21 |
| Snap beans | Sow outdoors | Jun 6 – Jul 6 |
| Sweet corn | Sow outdoors | Jun 6 – Jun 3 |
| Watermelon & cantaloupe | Sow outdoors | Jun 20 – Jul 21 |
| Okra | Sow outdoors | Jun 13 – Jul 6 |
| Peas | Sow outdoors (spring) | Apr 20 – Jun 5 |
| Potatoes | Plant outdoors (spring) | Apr 20 – Jun 20 |
| Onions | Start seeds indoors (spring) | Mar 9 – Apr 5 |
| Onions | Transplant outdoors (spring) | May 7 – Jun 5 |
| Broccoli | Start seeds indoors (spring) | Apr 2 – May 6 |
| Broccoli | Transplant outdoors (spring) | May 7 – Jun 5 |
| Broccoli | Start seeds indoors (fall) | May 24 – Jun 3 |
| Broccoli | Transplant outdoors (fall) | Jun 23 – Jul 4 |
| Cabbage | Start seeds indoors (spring) | Mar 23 – Apr 20 |
| Cabbage | Transplant outdoors (spring) | Apr 20 – May 21 |
| Cabbage | Start seeds indoors (fall) | May 14 – Jun 13 |
| Cabbage | Transplant outdoors (fall) | Jun 13 – Jul 14 |
| Leaf lettuce | Sow outdoors (spring) | Apr 20 – Jul 6 |
| Leaf lettuce | Sow outdoors (fall) | Jun 13 – Jul 30 |
| Spinach | Sow outdoors (spring) | Apr 13 – May 27 |
| Spinach | Sow outdoors (fall) | Jun 30 – Aug 4 |
| Radishes | Sow outdoors (spring) | Apr 20 – Jun 10 |
| Radishes | Sow outdoors (fall) | Jun 13 – Aug 14 |
| Kale | Sow outdoors (spring) | May 7 – May 27 |
| Kale | Sow outdoors (fall) | Jun 6 – Jul 14 |
| Carrots | Sow outdoors (spring) | May 21 – Jul 6 |
| Carrots | Sow outdoors (fall) | May 14 – Jun 29 |
| Garlic | Plant outdoors (fall) | Sep 13 – Oct 14 |
Where these dates come from
ZIP code 82844 is matched to the NOAA station Sheridan Co Ap, WY, 19.9 km away, at 3,945 ft elevation (445 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Sheridan Co Ap, WY (used) | 3,945 ft | May 21 | Sep 23 |
| Dayton, WY | 3,920 ft | May 24 | Sep 18 |
| Big Horn, WY | 4,208 ft | May 17 | Sep 28 |
| Burgess Junction, WY | 8,060 ft | — | — |
Frost dates near Wolf
- Dayton, WY 82836 · last May 24, first Sep 18
- Ranchester, WY 82839 · last May 24, first Sep 18
- Sheridan, WY 82801 · last May 21, first Sep 23
- Big Horn, WY 82833 · last May 17, first Sep 28
- Parkman, WY 82838 · last May 24, first Sep 18
- Story, WY 82842 · last May 24, first Sep 23
- Banner, WY 82832 · last May 24, first Sep 21
- Wyola, MT 59089 · last May 21, first Sep 17
Frequently asked questions
- When is the last frost in Wolf, WY?
- For ZIP code 82844, the average last spring frost (32°F) is May 21, based on NOAA 1991-2020 climate normals for the Sheridan Co Ap, WY weather station. There is a 1-in-10 chance of a frost after June 6.
- When is the first frost in Wolf, WY?
- The average first fall frost (32°F) is September 23. There is a 1-in-10 chance of frost by September 9, so tender plants are at risk from that point on.
- How long is the growing season in 82844?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 123 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.