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Climate Data for Sauk County, Wisconsin
Climate Normals and Growing Season Summary
Chart courtesy of the Midwestern Regional Climate Center.
Growing Season Summary:
- Median date of last frost in the spring: May 13. Last Spring Frost Zones.
- (The last frost occurs on or after May 30 in 10 percent of the years.)
- Median date of first frost in the fall: September 23. First Fall Frost Zones.
- (The first frost occurs on or before September 12 in 10 percent of the years.)
- Median growing season: 132 days. Range: 109 to 150 days.
- For perennials, landscape plantings and fruit trees, see our Map of USDA Plant Hardiness Zones for Wisconsin.
| Climate Normals |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sept |
Oct |
Nov |
Dec |
| Ave Daily High (F°) |
25.1 |
30.2 |
42.1 |
56.7 |
69.2 |
78.2 |
82.6 |
80.0 |
71.4 |
59.9 |
44.3 |
30.0 |
| Ave Daily Low (F°) |
3.1 |
6.6 |
20.1 |
33.4 |
44.2 |
53.7 |
58.4 |
55.4 |
46.5 |
36.0 |
24.4 |
10.3 |
| Growing Degree Days |
1 |
2 |
34 |
141 |
329 |
494 |
623 |
555 |
355 |
170 |
36 |
4 |
| Heating Degree Days |
1578 |
1305 |
1051 |
597 |
289 |
65 |
14 |
39 |
187 |
533 |
918 |
1389 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
31 |
95 |
184 |
123 |
7 |
6 |
0 |
0 |
| Ave Precipitation (") |
0.94 |
0.92 |
2.01 |
2.99 |
3.12 |
3.73 |
3.52 |
4.16 |
3.91 |
2.36 |
2.16 |
1.34 |
| Ave Snowfall (") |
9.8 |
7.2 |
7.3 |
1.8 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.2 |
3.5 |
10.6 |
Data from the weather station at Baraboo, latitude 43°28' N, longitude 89°44' W, elevation 823 ft.
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