Last frost date in Port Washington, Wisconsin
April 27
Average last frost in spring. In an early year (1 in 10) it's over by April 11; in a late year (1 in 10) it comes after May 14.
October 22
Average first frost in fall. 1 year in 10 it comes by October 6.
Source: NOAA U.S. Climate Normals 1991–2020, station Port Washington (USC00476764), 1.2 miles from Port Washington, elevation 594 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 11 | Apr 27 | May 14 |
| First frost in fall | Oct 6 | Oct 22 | Nov 4 |
Frost-free days in an average year: 176
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 10 | Oct 10 |
| Frost (32°F) | Every year | Apr 27 | Oct 22 |
| Hard freeze (28°F) | Every year | Apr 13 | Nov 2 |
Nights at 32°F or colder in an average year: 133
What to plant now in Port Washington
- Spring planting calendar for an average last frost around April 30 Port Washington: April 27
- Fall planting calendar for an average first frost around October 20 Port Washington: October 22
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
- Cedarburg 8 mi · last frost Apr 23
- West Bend 15 mi · last frost May 1
- Menomonee Falls 20 mi · last frost May 6
- Milwaukee 23 mi · last frost Apr 26
- Sussex 24 mi · last frost Apr 30
Updated