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Climate Data for Kewaunee 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 25 in 10 percent of the years.)
- Median date of first frost in the fall: October 8. First Fall Frost Zones.
- (The first frost occurs on or before September 23 in 10 percent of the years.)
- Median growing season: 156 days. Range: 133 to 182 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°) |
25.6 |
29.1 |
38.8 |
50.1 |
61.9 |
71.8 |
77.8 |
76.4 |
68.6 |
56.9 |
43.8 |
30.5 |
| Ave Daily Low (F°) |
10.3 |
13.1 |
23.6 |
33.7 |
42.2 |
51.0 |
58.0 |
57.8 |
50.5 |
40.4 |
29.9 |
16.8 |
| Growing Degree Days |
0 |
0 |
7 |
54 |
183 |
353 |
529 |
510 |
318 |
118 |
18 |
1 |
| Heating Degree Days |
1457 |
1229 |
1048 |
693 |
404 |
150 |
28 |
42 |
171 |
508 |
843 |
1283 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
0 |
42 |
121 |
107 |
9 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.39 |
1.26 |
2.18 |
2.71 |
2.92 |
3.28 |
3.03 |
3.45 |
3.52 |
2.36 |
2.29 |
1.78 |
| Ave Snowfall (") |
11.7 |
9.2 |
7.3 |
1.9 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
1.9 |
9.8 |
Data from the weather station at Kewaunee 5 S, latitude 44°26' N, longitude 87°31' W, elevation 650 ft.
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