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Climate Data for Calumet 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 10. Last Spring Frost Zones.
- (The last frost occurs on or after May 26 in 10 percent of the years.)
- Median date of first frost in the fall: October 5. First Fall Frost Zones.
- (The first frost occurs on or before September 23 in 10 percent of the years.)
- Median growing season: 148 days. Range: 130 to 162 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°) |
23.6 |
27.4 |
39.5 |
54.7 |
68.2 |
77.3 |
82.3 |
79.1 |
70.5 |
59.2 |
43.0 |
28.6 |
| Ave Daily Low (F°) |
5.9 |
8.7 |
20.9 |
33.7 |
44.3 |
54.1 |
59.3 |
57.2 |
48.6 |
38.6 |
26.6 |
13.0 |
| Growing Degree Days |
0 |
1 |
24 |
131 |
324 |
508 |
628 |
574 |
379 |
179 |
30 |
3 |
| Heating Degree Days |
1556 |
1313 |
1079 |
624 |
302 |
75 |
11 |
28 |
175 |
499 |
906 |
1367 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
32 |
96 |
191 |
128 |
10 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.31 |
1.19 |
2.20 |
2.79 |
3.22 |
3.65 |
3.34 |
3.76 |
3.92 |
2.55 |
2.26 |
1.69 |
| Ave Snowfall (") |
11.6 |
9.5 |
8.1 |
1.5 |
0.2 |
0.0 |
0.0 |
0.0 |
0.0 |
0.2 |
3.5 |
11.2 |
Data from the weather station at Chilton, latitude 44°02' N, longitude 88°09' W, elevation 840 ft.
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