Last frost date in Beloit, Wisconsin
May 1
Average last frost in spring. In an early year (1 in 10) it's over by April 17; in a late year (1 in 10) it comes after May 16.
October 12
Average first frost in fall. 1 year in 10 it comes by September 28.
Source: NOAA U.S. Climate Normals 1991–2020, station Beloit (USC00470696), 1.5 miles from Beloit, elevation 788 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 17 | May 1 | May 16 |
| First frost in fall | Sept 28 | Oct 12 | Oct 24 |
Frost-free days in an average year: 162
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 11 | Oct 1 |
| Frost (32°F) | Every year | May 1 | Oct 12 |
| Hard freeze (28°F) | Every year | Apr 20 | Oct 23 |
Nights at 32°F or colder in an average year: 142
What to plant now in Beloit
- Spring planting calendar for an average last frost around April 30 Beloit: May 1
- Fall planting calendar for an average first frost around October 10 Beloit: October 12
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
- Janesville 11 mi · last frost Apr 26
- Whitewater 26 mi · last frost May 2
- Elkhorn 27 mi · last frost Apr 28
- Fort Atkinson 29 mi · last frost Apr 28
- Stoughton 30 mi · last frost Apr 30
Updated