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Climate Data for Sheboygan 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 27 in 10 percent of the years.)
- Median date of first frost in the fall: October 6. First Fall Frost Zones.
- (The first frost occurs on or before September 24 in 10 percent of the years.)
- Median growing season: 150 days. Range: 126 to 165 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°) |
25.7 |
30.3 |
40.9 |
55.1 |
68.0 |
77.4 |
82.2 |
79.8 |
71.5 |
59.3 |
44.4 |
30.4 |
| Ave Daily Low (F°) |
9.2 |
13.3 |
23.6 |
34.4 |
44.1 |
54.1 |
59.9 |
58.3 |
50.6 |
40.3 |
29.0 |
15.5 |
| Growing Degree Days |
0 |
1 |
25 |
118 |
303 |
483 |
640 |
590 |
377 |
165 |
31 |
3 |
| Heating Degree Days |
1473 |
1210 |
1014 |
606 |
302 |
76 |
16 |
25 |
136 |
471 |
849 |
1302 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
26 |
100 |
202 |
152 |
19 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.25 |
1.19 |
2.44 |
3.35 |
3.59 |
3.63 |
3.64 |
4.33 |
4.65 |
2.95 |
2.80 |
2.15 |
| Ave Snowfall (") |
14.1 |
12.3 |
11.5 |
3.2 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.2 |
4.7 |
15.1 |
Data from the weather station at Plymouth, latitude 43°45' N, longitude 87°59' W, elevation 865 ft.
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