Last frost date in Baraboo, Wisconsin
May 5
Average last frost in spring. In an early year (1 in 10) it's over by April 21; in a late year (1 in 10) it comes after May 21.
October 5
Average first frost in fall. 1 year in 10 it comes by September 22.
Source: NOAA U.S. Climate Normals 1991–2020, station Baraboo (USC00470516), 0.9 miles from Baraboo, elevation 823 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 21 | May 5 | May 21 |
| First frost in fall | Sept 22 | Oct 5 | Oct 19 |
Frost-free days in an average year: 152
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 18 | Sept 26 |
| Frost (32°F) | Every year | May 5 | Oct 5 |
| Hard freeze (28°F) | Every year | Apr 24 | Oct 17 |
Nights at 32°F or colder in an average year: 169
What to plant now in Baraboo
- Spring planting calendar for an average last frost around April 30 Baraboo: May 5
- Fall planting calendar for an average first frost around September 30 Baraboo: October 5
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
- Reedsburg 14 mi · last frost May 2
- DeForest 26 mi · last frost May 4
- Middleton 28 mi · last frost Apr 28
- Madison 31 mi · last frost May 1
- Sun Prairie 32 mi · last frost May 1
Updated