Frost dates for 54768Stanley, WI
The average last spring frost in Stanley is May 7 and the average first fall frost is October 3, giving a typical growing season of about 147 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 7
- Average first fall frost
- Oct 3
- Growing season
- 147 days
Safer after May 21 (1-in-10 risk)
Possible by Sep 20 (1-in-10 risk)
Last frost typically in 186 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 4 · May 18 · Jun 2 | Sep 11 · Sep 25 · Oct 6 | 127 days | 100% |
| Frost / freeze (32°F) | Apr 24 · May 7 · May 21 | Sep 20 · Oct 3 · Oct 16 | 147 days | 100% |
| Hard freeze (28°F) | Apr 12 · Apr 26 · May 10 | Sep 29 · Oct 14 · Oct 29 | 169 days | 100% |
Planting calendar for Stanley
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 6 – Jun 12 |
| Tomatoes | Transplant outdoors | May 23 – Jun 13 |
| Peppers | Start seeds indoors | Apr 6 – May 7 |
| Peppers | Transplant outdoors | Jun 6 – Jul 7 |
| Eggplant | Start seeds indoors | Apr 23 – May 22 |
| Eggplant | Transplant outdoors | Jun 6 – Jul 7 |
| Cucumbers | Sow outdoors | Jun 6 – Jun 23 |
| Summer squash | Sow outdoors | May 23 – Jul 7 |
| Winter squash & pumpkins | Sow outdoors | Jun 6 – Jul 7 |
| Snap beans | Sow outdoors | May 23 – Jul 16 |
| Sweet corn | Sow outdoors | May 23 – Jun 13 |
| Watermelon & cantaloupe | Sow outdoors | Jun 6 – Jul 7 |
| Okra | Sow outdoors | May 30 – Jun 22 |
| Peas | Sow outdoors (spring) | Apr 6 – May 22 |
| Potatoes | Plant outdoors (spring) | Apr 6 – Jun 6 |
| Onions | Start seeds indoors (spring) | Feb 23 – Mar 22 |
| Onions | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (spring) | Mar 19 – Apr 22 |
| Broccoli | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (fall) | Jun 3 – Jun 13 |
| Broccoli | Transplant outdoors (fall) | Jul 3 – Jul 14 |
| Cabbage | Start seeds indoors (spring) | Mar 9 – Apr 6 |
| Cabbage | Transplant outdoors (spring) | Apr 6 – May 7 |
| Cabbage | Start seeds indoors (fall) | May 24 – Jun 23 |
| Cabbage | Transplant outdoors (fall) | Jun 23 – Jul 24 |
| Leaf lettuce | Sow outdoors (spring) | Apr 6 – Jun 22 |
| Leaf lettuce | Sow outdoors (fall) | Jun 23 – Aug 9 |
| Spinach | Sow outdoors (spring) | Mar 30 – May 13 |
| Spinach | Sow outdoors (fall) | Jul 10 – Aug 14 |
| Radishes | Sow outdoors (spring) | Apr 6 – May 27 |
| Radishes | Sow outdoors (fall) | Jun 23 – Aug 24 |
| Kale | Sow outdoors (spring) | Apr 23 – May 13 |
| Kale | Sow outdoors (fall) | Jun 16 – Jul 24 |
| Carrots | Sow outdoors (spring) | May 7 – Jun 22 |
| Carrots | Sow outdoors (fall) | May 24 – Jul 9 |
| Garlic | Plant outdoors (fall) | Sep 23 – Oct 24 |
Where these dates come from
ZIP code 54768 is matched to the NOAA station Stanley Wwtp, WI, 2 km away, at 1,080 ft elevation (19 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Stanley Wwtp, WI (used) | 1,080 ft | May 7 | Oct 3 |
| Owen 1E, WI | 1,238 ft | May 13 | Sep 26 |
| Holcombe, WI | 1,057 ft | May 5 | Oct 2 |
| Jim Falls 3Nw, WI | 1,070 ft | May 1 | Oct 8 |
Frost dates near Stanley
- Boyd, WI 54726 · last May 7, first Oct 3
- Thorp, WI 54771 · last May 7, first Oct 3
- Cadott, WI 54727 · last May 7, first Oct 3
- Lublin, WI 54447 · last May 13, first Sep 26
- Gilman, WI 54433 · last May 20, first Sep 23
- Withee, WI 54498 · last May 13, first Sep 26
- Cornell, WI 54732 · last May 5, first Oct 2
- Jim Falls, WI 54748 · last May 5, first Oct 3
Frequently asked questions
- When is the last frost in Stanley, WI?
- For ZIP code 54768, the average last spring frost (32°F) is May 7, based on NOAA 1991-2020 climate normals for the Stanley Wwtp, WI weather station. There is a 1-in-10 chance of a frost after May 21.
- When is the first frost in Stanley, WI?
- The average first fall frost (32°F) is October 3. There is a 1-in-10 chance of frost by September 20, so tender plants are at risk from that point on.
- How long is the growing season in 54768?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 147 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.