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Climate Data for Lafayette 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 11. Last Spring Frost Zones.
- (The last frost occurs on or after May 28 in 10 percent of the years.)
- Median date of first frost in the fall: October 3. First Fall Frost Zones.
- (The first frost occurs on or before September 19 in 10 percent of the years.)
- Median growing season: 144 days. Range: 129 to 155 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°) |
25.9 |
31.4 |
43.7 |
58.4 |
70.0 |
79.1 |
83.0 |
80.8 |
72.6 |
61.6 |
45.2 |
30.5 |
| Ave Daily Low (F°) |
6.2 |
10.8 |
23.2 |
34.8 |
45.5 |
54.9 |
60.1 |
57.5 |
49.1 |
37.8 |
26.4 |
12.9 |
| Growing Degree Days |
1 |
3 |
41 |
162 |
356 |
529 |
660 |
603 |
401 |
206 |
43 |
4 |
| Heating Degree Days |
1519 |
1229 |
977 |
552 |
260 |
44 |
10 |
29 |
148 |
477 |
876 |
1342 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
37 |
104 |
214 |
156 |
25 |
6 |
0 |
0 |
| Ave Precipitation (") |
1.12 |
1.14 |
2.26 |
3.10 |
3.44 |
4.35 |
4.16 |
4.15 |
4.20 |
2.42 |
2.20 |
1.73 |
| Ave Snowfall (") |
8.3 |
7.3 |
7.5 |
2.5 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.2 |
2.6 |
9.2 |
Data from the weather station at Darlington, latitude 42°41' N, longitude 90°07' W, elevation 930 ft.
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