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Climate Data for Door 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 29 in 10 percent of the years.)
- Median date of first frost in the fall: October 8. First Fall Frost Zones.
- (The first frost occurs on or before September 25 in 10 percent of the years.)
- Median growing season: 148 days. Range: 132 to 161 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°) |
24.8 |
28.4 |
38.2 |
51.6 |
64.5 |
74.2 |
79.6 |
77.4 |
69.1 |
57.1 |
42.8 |
30.3 |
| Ave Daily Low (F°) |
8.7 |
11.3 |
21.8 |
32.8 |
41.9 |
51.4 |
57.9 |
56.8 |
50.0 |
40.4 |
29.9 |
16.7 |
| Growing Degree Days |
0 |
0 |
8 |
74 |
239 |
414 |
583 |
540 |
339 |
135 |
18 |
1 |
| Heating Degree Days |
1494 |
1266 |
1085 |
684 |
374 |
118 |
19 |
41 |
170 |
502 |
858 |
1290 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
8 |
52 |
137 |
109 |
8 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.53 |
1.13 |
2.09 |
2.65 |
3.12 |
3.31 |
3.36 |
3.42 |
3.88 |
2.66 |
2.45 |
1.89 |
| Ave Snowfall (") |
12.5 |
7.8 |
7.5 |
2.0 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
2.5 |
11.7 |
Data from the weather station at Sturgeon Bay Exp Farm, latitude 44°52' N, longitude 87°20' W, elevation 656 ft.
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