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Climate Data for Marquette 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 12. 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 1. First Fall Frost Zones.
- (The first frost occurs on or before September 17 in 10 percent of the years.)
- Median growing season: 144 days. Range: 125 to 158 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°) |
23.4 |
28.2 |
40.3 |
55.7 |
68.0 |
78.2 |
82.7 |
79.3 |
70.2 |
59.1 |
42.9 |
28.6 |
| Ave Daily Low (F°) |
3.8 |
7.7 |
21.2 |
34.2 |
45.4 |
54.5 |
59.6 |
56.5 |
47.9 |
37.0 |
24.7 |
10.9 |
| Growing Degree Days |
0 |
1 |
26 |
137 |
336 |
513 |
640 |
550 |
357 |
173 |
31 |
2 |
| Heating Degree Days |
1593 |
1316 |
1063 |
600 |
291 |
68 |
13 |
42 |
190 |
524 |
936 |
1404 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
33 |
110 |
202 |
132 |
13 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.12 |
1.11 |
2.32 |
3.08 |
3.27 |
3.68 |
3.36 |
3.77 |
4.18 |
2.37 |
2.22 |
1.62 |
| Ave Snowfall (") |
9.0 |
7.5 |
7.2 |
1.8 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.1 |
3.9 |
10.8 |
Data from the weather station at Montello, latitude 43°48' N, longitude 89°19' W, elevation 790 ft.
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