Last frost date in Middleton, Wisconsin
April 28
Average last frost in spring. In an early year (1 in 10) it's over by April 14; in a late year (1 in 10) it comes after May 11.
October 15
Average first frost in fall. 1 year in 10 it comes by September 29.
Source: NOAA U.S. Climate Normals 1991–2020, station Charmany Farm (USC00471416), 3.5 miles from Middleton, elevation 1,046 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Verona, so its frost dates are the same as Middleton's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 14 | Apr 28 | May 11 |
| First frost in fall | Sept 29 | Oct 15 | Oct 29 |
Frost-free days in an average year: 169
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 7 | Oct 4 |
| Frost (32°F) | Every year | Apr 28 | Oct 15 |
| Hard freeze (28°F) | Every year | Apr 17 | Oct 25 |
Nights at 32°F or colder in an average year: 146
What to plant now in Middleton
- Spring planting calendar for an average last frost around April 30 Middleton: April 28
- Fall planting calendar for an average first frost around October 10 Middleton: October 15
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Wisconsin
- Madison 4 mi · last frost May 1
- DeForest 12 mi · last frost May 4
- Sun Prairie 15 mi · last frost May 1
- Stoughton 19 mi · last frost Apr 30
- Baraboo 28 mi · last frost May 5
Updated