Frost dates for 82942Point Of Rocks, WY
The average last spring frost in Point Of Rocks is May 22 and the average first fall frost is September 28, giving a typical growing season of about 126 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 22
- Average first fall frost
- Sep 28
- Growing season
- 126 days
Safer after Jun 9 (1-in-10 risk)
Possible by Sep 14 (1-in-10 risk)
Last frost typically in 207 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 5 · Jun 21 | Sep 7 · Sep 19 · Sep 30 | 104 days | 100% |
| Frost / freeze (32°F) | May 5 · May 22 · Jun 9 | Sep 14 · Sep 28 · Oct 9 | 126 days | 100% |
| Hard freeze (28°F) | Apr 23 · May 7 · May 25 | Sep 22 · Oct 5 · Oct 23 | 149 days | 100% |
Planting calendar for Point Of Rocks
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 21 – Jun 27 |
| Tomatoes | Transplant outdoors | Jun 7 – Jun 8 |
| Peppers | Start seeds indoors | Apr 21 – May 22 |
| Peppers | Transplant outdoors | Jun 21 – Jul 22 |
| Eggplant | Start seeds indoors | May 8 – Jun 6 |
| Eggplant | Transplant outdoors | Jun 21 – Jul 22 |
| Cucumbers | Sow outdoors | Jun 21 – Jun 18 |
| Summer squash | Sow outdoors | Jun 7 – Jul 22 |
| Winter squash & pumpkins | Sow outdoors | Jun 21 – Jul 22 |
| Snap beans | Sow outdoors | Jun 7 – Jul 11 |
| Sweet corn | Sow outdoors | Jun 7 – Jun 8 |
| Watermelon & cantaloupe | Sow outdoors | Jun 21 – Jul 22 |
| Okra | Sow outdoors | Jun 14 – Jul 7 |
| Peas | Sow outdoors (spring) | Apr 21 – Jun 6 |
| Potatoes | Plant outdoors (spring) | Apr 21 – Jun 21 |
| Onions | Start seeds indoors (spring) | Mar 10 – Apr 6 |
| Onions | Transplant outdoors (spring) | May 8 – Jun 6 |
| Broccoli | Start seeds indoors (spring) | Apr 3 – May 7 |
| Broccoli | Transplant outdoors (spring) | May 8 – Jun 6 |
| Broccoli | Start seeds indoors (fall) | May 29 – Jun 8 |
| Broccoli | Transplant outdoors (fall) | Jun 28 – Jul 9 |
| Cabbage | Start seeds indoors (spring) | Mar 24 – Apr 21 |
| Cabbage | Transplant outdoors (spring) | Apr 21 – May 22 |
| Cabbage | Start seeds indoors (fall) | May 19 – Jun 18 |
| Cabbage | Transplant outdoors (fall) | Jun 18 – Jul 19 |
| Leaf lettuce | Sow outdoors (spring) | Apr 21 – Jul 7 |
| Leaf lettuce | Sow outdoors (fall) | Jun 18 – Aug 4 |
| Spinach | Sow outdoors (spring) | Apr 14 – May 28 |
| Spinach | Sow outdoors (fall) | Jul 5 – Aug 9 |
| Radishes | Sow outdoors (spring) | Apr 21 – Jun 11 |
| Radishes | Sow outdoors (fall) | Jun 18 – Aug 19 |
| Kale | Sow outdoors (spring) | May 8 – May 28 |
| Kale | Sow outdoors (fall) | Jun 11 – Jul 19 |
| Carrots | Sow outdoors (spring) | May 22 – Jul 7 |
| Carrots | Sow outdoors (fall) | May 19 – Jul 4 |
| Garlic | Plant outdoors (fall) | Sep 18 – Oct 19 |
Where these dates come from
ZIP code 82942 is matched to the NOAA station Rock Springs Ap, WY, 24.2 km away, at 6,741 ft elevation (219 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Rock Springs Ap, WY (used) | 6,741 ft | May 22 | Sep 28 |
| Bitter Creek 4 Ne, WY | 6,722 ft | Jun 1 | Sep 16 |
| Rock Springs Fire Dept, WY | 6,270 ft | May 24 | Sep 24 |
| Green Rvr, WY | 6,160 ft | May 24 | Sep 22 |
Frost dates near Point Of Rocks
- Superior, WY 82945 · last May 22, first Sep 28
- Reliance, WY 82943 · last May 22, first Sep 28
- Rock Springs, WY 82902 · last May 24, first Sep 24
- Wamsutter, WY 82336 · last Jun 5, first Sep 14
- Green River, WY 82935 · last May 24, first Sep 22
- Farson, WY 82932 · last —, first —
- Little America, WY 82929 · last May 24, first Sep 22
- Dutch John, UT 84023 · last May 26, first Sep 23
Frequently asked questions
- When is the last frost in Point Of Rocks, WY?
- For ZIP code 82942, the average last spring frost (32°F) is May 22, based on NOAA 1991-2020 climate normals for the Rock Springs Ap, WY weather station. There is a 1-in-10 chance of a frost after June 9.
- When is the first frost in Point Of Rocks, WY?
- The average first fall frost (32°F) is September 28. There is a 1-in-10 chance of frost by September 14, so tender plants are at risk from that point on.
- How long is the growing season in 82942?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 126 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.