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Climate Data for Florence 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: June 16. Last Spring Frost Zones.
- (The last frost occurs on or after July 5 in 10 percent of the years.)
- Median date of first frost in the fall: September 2. First Fall Frost Zones.
- (The first frost occurs on or before August 11 in 10 percent of the years.)
- Median growing season: 81 days. Range: 51 to 106 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°) |
20.3 |
24.8 |
36.0 |
51.0 |
65.6 |
74.3 |
79.3 |
76.0 |
65.5 |
53.9 |
37.8 |
24.5 |
| Ave Daily Low (F°) |
-3.1 |
-2.0 |
12.1 |
27.1 |
38.5 |
47.2 |
52.4 |
50.6 |
42.6 |
33.2 |
21.6 |
5.8 |
| Growing Degree Days |
0 |
1 |
15 |
106 |
282 |
394 |
494 |
412 |
283 |
129 |
15 |
1 |
| Heating Degree Days |
1748 |
1501 |
1271 |
777 |
414 |
159 |
64 |
106 |
327 |
663 |
1059 |
1544 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
14 |
33 |
92 |
53 |
0 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.13 |
0.86 |
1.71 |
2.35 |
3.22 |
3.49 |
3.24 |
3.78 |
3.88 |
2.61 |
1.91 |
1.50 |
| Ave Snowfall (") |
14.6 |
9.3 |
11.9 |
3.1 |
0.5 |
0.0 |
0.0 |
0.0 |
0.0 |
0.6 |
6.6 |
15.8 |
Data from the weather station at Brule Island, latitude 45°57' N, longitude 88°13' W, elevation 1250 ft. Growing season data (including growing degree days and frost dates) are not available from the Brule Island station, and have been taken from Newald 4N (Forest County).
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