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Climate Data for Oneida 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 20. Last Spring Frost Zones.
- (The last frost occurs on or after June 2 in 10 percent of the years.)
- Median date of first frost in the fall: September 24. First Fall Frost Zones.
- (The first frost occurs on or before September 10 in 10 percent of the years.)
- Median growing season: 125 days. Range: 108 to 147 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°) |
20.9 |
26.3 |
37.8 |
53.0 |
66.7 |
74.8 |
79.8 |
76.5 |
66.6 |
55.0 |
38.5 |
24.5 |
| Ave Daily Low (F°) |
-0.7 |
2.2 |
15.2 |
29.3 |
40.6 |
50.2 |
55.6 |
53.1 |
44.7 |
34.6 |
22.2 |
6.4 |
| Growing Degree Days |
0 |
1 |
14 |
104 |
282 |
416 |
559 |
490 |
283 |
123 |
16 |
1 |
| Heating Degree Days |
1702 |
1420 |
1194 |
714 |
376 |
122 |
35 |
80 |
283 |
626 |
1038 |
1538 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
22 |
47 |
119 |
73 |
0 |
0 |
0 |
0 |
| Ave Precipitation (") |
1.07 |
0.78 |
1.46 |
2.36 |
3.20 |
3.80 |
3.44 |
4.34 |
4.25 |
2.56 |
1.88 |
1.42 |
| Ave Snowfall (") |
11.4 |
6.7 |
7.3 |
1.5 |
0.2 |
0.0 |
0.0 |
0.0 |
0.0 |
0.1 |
3.3 |
12.9 |
Data from the weather station at Rhinelander, latitude 45°38' N, longitude 89°25' W, elevation 1580 ft.
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