county location
More Local
Information
Home Page
Local Events
Local Attractions
County Map
Climate Table
Data Reports
Wisconsin Hospitals
|
|
Climate Data for Waukesha 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 6. Last Spring Frost Zones.
- (The last frost occurs on or after May 17 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 23 in 10 percent of the years.)
- Median growing season: 158 days. Range: 136 to 173 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°) |
26.4 |
31.1 |
42.3 |
56.2 |
68.7 |
78.5 |
82.8 |
80.2 |
72.3 |
60.4 |
45.5 |
31.3 |
| Ave Daily Low (F°) |
10.8 |
15.0 |
25.5 |
36.3 |
46.6 |
56.2 |
61.8 |
59.9 |
52.0 |
41.2 |
30.2 |
16.8 |
| Growing Degree Days |
1 |
2 |
34 |
143 |
331 |
518 |
667 |
600 |
390 |
181 |
38 |
4 |
| Heating Degree Days |
1438 |
1173 |
964 |
564 |
265 |
47 |
6 |
18 |
110 |
448 |
816 |
1268 |
| Cooling Degree Days |
0 |
0 |
0 |
0 |
39 |
119 |
232 |
176 |
26 |
8 |
0 |
0 |
| Ave Precipitation (") |
1.34 |
1.09 |
2.36 |
3.35 |
2.99 |
3.47 |
3.33 |
4.10 |
3.68 |
2.48 |
2.40 |
1.96 |
| Ave Snowfall (") |
10.3 |
7.2 |
8.5 |
2.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
2.3 |
10.0 |
Data from the weather station at Waukesha, latitude 43°01' N, longitude 88°14' W, elevation 860 ft. Growing season data (including growing degree days and frost dates) are not available from the Waukesha station, and have been taken from Oconomowoc 1 SW.
|
