Last frost date in Marinette, Wisconsin
May 4
Average last frost in spring. In an early year (1 in 10) it's over by April 19; in a late year (1 in 10) it comes after May 20.
October 11
Average first frost in fall. 1 year in 10 it comes by September 29.
Source: NOAA U.S. Climate Normals 1991–2020, station Marinette (USC00475091), 0.9 miles from Marinette, elevation 589 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 19 | May 4 | May 20 |
| First frost in fall | Sept 29 | Oct 11 | Oct 29 |
Frost-free days in an average year: 160
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 16 | Oct 1 |
| Frost (32°F) | Every year | May 4 | Oct 11 |
| Hard freeze (28°F) | Every year | Apr 22 | Oct 27 |
Nights at 32°F or colder in an average year: 153
What to plant now in Marinette
- Spring planting calendar for an average last frost around April 30 Marinette: May 4
- Fall planting calendar for an average first frost around October 10 Marinette: October 11
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
- Green Bay 43 mi · last frost May 7
- Hobart 48 mi · last frost May 1
- De Pere 50 mi · last frost Apr 30
- Two Rivers 64 mi · last frost Apr 27
- Appleton 67 mi · last frost May 4
Updated