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Climate Data for Dunn 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 28 in 10 percent of the years.)
- Median date of first frost in the fall: September 28. First Fall Frost Zones.
- (The first frost occurs on or before September 20 in 10 percent of the years.)
- Median growing season: 139 days. Range: 119 to 157 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°) |
23.8 |
30.1 |
42.5 |
59.6 |
72.2 |
80.4 |
85.2 |
82.4 |
73.1 |
61.5 |
43.8 |
28.0 |
| Ave Daily Low (F°) |
2.6 |
7.5 |
20.8 |
33.9 |
45.0 |
54.4 |
59.5 |
57.0 |
48.6 |
37.9 |
25.2 |
10.2 |
| Growing Degree Days |
0 |
2 |
30 |
160 |
364 |
528 |
664 |
601 |
384 |
195 |
32 |
1 |
| Heating Degree Days |
1606 |
1294 |
1032 |
546 |
240 |
42 |
9 |
18 |
139 |
475 |
915 |
1423 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
41 |
114 |
239 |
164 |
16 |
7 |
0 |
0 |
| Ave Precipitation (") |
0.82 |
0.60 |
1.56 |
2.62 |
3.30 |
4.20 |
3.69 |
3.87 |
3.75 |
2.35 |
1.48 |
1.03 |
| Ave Snowfall (") |
11.5 |
7.4 |
8.4 |
1.6 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
3.7 |
10.0 |
Data from the weather station at Menomonie, latitude 44°53' N, longitude 91°56' W, elevation 780 ft.
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