Weather Averages Waukesha, WI

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Weather Averages for
Waukesha, WI


Latitude: 43°4'N, Longitude: 88°1'W, Elevation: 726.0 ft, Distance: 9.74 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°F 48 19 24 35 47 58 68 73 71 63 51 39 25
Average high temperature
over 30 years
°F 57 27 32 43 57 69 79 84 82 73 61 46 32
Average low temperature
over 30 years
°F 38 12 16 26 37 46 56 62 61 53 42 31 18
Highest recorded temperature
over 49 years
°F 107 59 62 84 89 95 104 107 107 100 89 78 64
Lowest recorded temperature
over 49 years
°F -27 -27 -25 -14 10 24 32 39 41 26 16 -7 -22
Average number of days above 90°F
over 30 years
days 16 - - - - 0.6 3.5 6.4 4.5 1 - - -
Average precipitation
over 30 years
in 31.1 1.4 1.2 2.2 3.2 2.8 3.2 3.4 3.6 3.5 2.3 2.3 2.0
Average number of days below 32°F
over 30 years
days 139 29 26 23 9.7 1.1 - - - 0.3 4.9 18 28
Average number of days below 0°F
over 30 years
days 13 6.5 2.9 0.4 - - - - - - - 0.2 2.8
Average snowfall
over 30 years
in 39.8 11.5 9.0 6.7 1.7 0.1 - - - - 0.1 1.8 9.3
Most rain reported in a day
over 49 years
in 6.4 1.5 1.4 2.2 3.9 2.9 2.7 6.4 3.5 3.1 2.4 2.5 1.6
Most rain reported in a month
over 49 years
in 41.3 4.4 2.9 6.0 8.5 6.7 10.2 9.4 6.8 8.7 6.0 8.1 5.3
Least rain reported in a month
over 49 years
in 18.5 0.2 - 0.1 1.3 0.4 0.6 0.7 0.6 - 0.1 0.4 0.2
Heating degree days
over 30 years
days 6857 1400 1143 929 544 247 52 8 14 115 411 778 1216
Cooling degree days
over 30 years
days 777 - - - 8 44 148 272 217 79 9 - -
Most snow reported in a month
over 49 years
in 91.1 44.2 36.3 23.2 12.0 2.0 - - - - 2.0 14.5 31.2