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Climate Data for Washburn 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 27. Last Spring Frost Zones.
- (The last frost occurs on or after June 14 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 1 in 10 percent of the years.)
- Median growing season: 117 days. Range: 88 to 144 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°) |
20.8 |
27.4 |
39.6 |
56.4 |
69.4 |
77.4 |
82.1 |
79.0 |
69.2 |
58.1 |
39.8 |
24.6 |
| Ave Daily Low (F°) |
-1.6 |
3.3 |
17.5 |
31.4 |
42.4 |
51.5 |
56.8 |
54.1 |
45.9 |
35.7 |
22.7 |
6.1 |
| Growing Degree Days |
0 |
1 |
18 |
132 |
318 |
468 |
597 |
528 |
321 |
152 |
19 |
1 |
| Heating Degree Days |
1717 |
1389 |
1128 |
633 |
310 |
92 |
23 |
53 |
231 |
561 |
1011 |
1538 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
28 |
74 |
162 |
103 |
9 |
0 |
0 |
0 |
| Ave Precipitation (") |
0.76 |
0.65 |
1.39 |
2.16 |
3.16 |
3.85 |
3.76 |
4.27 |
3.82 |
2.53 |
1.49 |
0.96 |
| Ave Snowfall (") |
12.9 |
8.0 |
9.8 |
2.6 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.6 |
5.8 |
12.3 |
Data from the weather station at Spooner Exp Farm, latitude 45°49' N, longitude 91°53' W, elevation 1100 ft.
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