Last frost date in Milwaukee, Wisconsin
April 26
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 18
Average first frost in fall. 1 year in 10 it comes by October 2.
Source: NOAA U.S. Climate Normals 1991–2020, station Mt Mary College (USC00475474), 3.2 miles from Milwaukee, elevation 715 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Brown Deer, Glendale, Shorewood, Wauwatosa and Whitefish Bay, so their frost dates are the same as Milwaukee's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 12 | Apr 26 | May 12 |
| First frost in fall | Oct 2 | Oct 18 | Nov 1 |
Frost-free days in an average year: 173
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 8 | Oct 6 |
| Frost (32°F) | Every year | Apr 26 | Oct 18 |
| Hard freeze (28°F) | Every year | Apr 14 | Oct 30 |
Nights at 32°F or colder in an average year: 134
What to plant now in Milwaukee
- Spring planting calendar for an average last frost around April 30 Milwaukee: April 26
- Fall planting calendar for an average first frost around October 20 Milwaukee: October 18
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
- West Allis 5 mi · last frost Apr 26
- Brookfield 8 mi · last frost Apr 30
- Cudahy 10 mi · last frost Apr 19
- Menomonee Falls 10 mi · last frost May 6
- New Berlin 10 mi · last frost May 3