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Climate Data for Eau Claire 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 27 in 10 percent of the years.)
- Median date of first frost in the fall: September 27. First Fall Frost Zones.
- (The first frost occurs on or before September 20 in 10 percent of the years.)
- Median growing season: 145 days. Range: 120 to 161 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°) |
20.5 |
26.8 |
39.4 |
56.5 |
69.5 |
78.3 |
83.2 |
80.0 |
70.0 |
58.2 |
40.9 |
25.3 |
| Ave Daily Low (F°) |
0.8 |
5.7 |
19.7 |
33.4 |
45.0 |
54.4 |
59.8 |
57.2 |
47.9 |
36.8 |
23.8 |
8.2 |
| Growing Degree Days |
0 |
1 |
23 |
136 |
328 |
499 |
643 |
572 |
340 |
154 |
23 |
1 |
| Heating Degree Days |
1683 |
1364 |
1097 |
600 |
277 |
59 |
15 |
28 |
192 |
543 |
978 |
1494 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
38 |
101 |
216 |
140 |
12 |
0 |
0 |
0 |
| Ave Precipitation (") |
0.98 |
0.72 |
1.70 |
2.83 |
3.81 |
4.19 |
3.94 |
4.49 |
3.90 |
2.43 |
1.52 |
1.10 |
| Ave Snowfall (") |
12.1 |
7.8 |
9.7 |
2.4 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.2 |
5.1 |
11.3 |
Data from the weather station at Eau Claire FAA Airport, latitude 44°52' N, longitude 91°29' W, elevation 888 ft.
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