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Climate Data for Trempealeau 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 18. Last Spring Frost Zones.
- (The last frost occurs on or after June 1 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 8 in 10 percent of the years.)
- Median growing season: 122 days. Range: 110 to 149 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°) |
22.2 |
28.4 |
40.7 |
56.8 |
69.4 |
78.1 |
82.8 |
79.9 |
70.7 |
59.4 |
42.6 |
26.9 |
| Ave Daily Low (F°) |
-0.5 |
4.3 |
19.3 |
32.9 |
43.7 |
52.9 |
57.8 |
55.4 |
46.2 |
35.5 |
23.6 |
7.5 |
| Growing Degree Days |
0 |
2 |
27 |
144 |
333 |
489 |
613 |
559 |
347 |
171 |
30 |
2 |
| Heating Degree Days |
1677 |
1364 |
1085 |
603 |
292 |
76 |
15 |
31 |
202 |
543 |
957 |
1482 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
32 |
91 |
179 |
115 |
7 |
0 |
0 |
0 |
| Ave Precipitation (") |
0.90 |
0.85 |
2.00 |
2.94 |
3.80 |
4.03 |
4.39 |
4.48 |
4.20 |
2.66 |
1.83 |
1.27 |
| Ave Snowfall (") |
10.3 |
7.5 |
8.4 |
1.9 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.1 |
3.5 |
10.4 |
Data from the weather station at Blair, latitude 44°18' N, longitude 91°14' W, elevation 860 ft.
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