Last frost date in Monroe, Wisconsin
April 27
Average last frost in spring. In an early year (1 in 10) it's over by April 12; in a late year (1 in 10) it comes after May 12.
October 14
Average first frost in fall. 1 year in 10 it comes by September 29.
Source: NOAA U.S. Climate Normals 1991–2020, station Monroe Wwtp (USC00475573), 1.5 miles from Monroe, elevation 991 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 12 | Apr 27 | May 12 |
| First frost in fall | Sept 29 | Oct 14 | Oct 29 |
Frost-free days in an average year: 170
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 6 | Oct 4 |
| Frost (32°F) | Every year | Apr 27 | Oct 14 |
| Hard freeze (28°F) | Every year | Apr 15 | Oct 25 |
Nights at 32°F or colder in an average year: 150
What to plant now in Monroe
- Spring planting calendar for an average last frost around April 30 Monroe: April 27
- Fall planting calendar for an average first frost around October 10 Monroe: October 14
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
- Stoughton 31 mi · last frost Apr 30
- Beloit 32 mi · last frost May 1
- Janesville 32 mi · last frost Apr 26
- Madison 35 mi · last frost May 1
- Middleton 35 mi · last frost Apr 28
Updated