Weather Averages Allerton, IL

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Weather Averages for
Allerton, IL



Latitude: 40°5'N, Longitude: 88°13'W, Elevation: 226.5 m, Distance: 11.65 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years		 °C 10 -4 -2 4 11 17 22 23 22 19 12 5 -1
Average high temperature
over 30 years		 °C 16 0 2 9 16 23 28 29 28 25 18 10 2
Average low temperature
over 30 years		 °C 5 -8 -6 0 5 11 15 18 16 12 6 0 -5
Highest recorded temperature
over 109 years		 °C 42 21 21 29 35 36 39 42 38 38 33 26 21
Lowest recorded temperature
over 109 years		 °C -31 -31 -31 -20 -9 -3 1 5 2 -4 -11 -20 -28
Average number of days above 27°C
over 30 years		 days 25 - - - - 0.9 5.7 8.9 6.5 2.9 0.1 - -
Average precipitation
over 30 years		 cm 100.8 4.6 5.1 8.4 9.9 10.2 10.4 11.4 10.2 8.6 6.9 7.9 7.6
Average number of days below -1.5°C
over 30 years		 days 122 28 24 19 5.7 0.3 - - - 0.1 3.8 16 26
Average number of days below -17.5°C
over 30 years		 days 7 3.2 2 0.1 - - - - - - - 0.1 1.6
Average snowfall
over 30 years		 cm 71.1 20.6 17.8 10.4 2.0 - - - - - 0.3 5.1 15.2
Most rain reported in a day
over 109 years		 cm 13.5 6.1 5.8 7.4 7.9 11.4 9.9 11.2 13.5 9.9 9.4 10.4 7.6
Most rain reported in a month
over 109 years		 cm 148.6 19.3 15.5 21.3 24.4 28.4 29.5 35.1 25.4 24.9 22.9 25.7 16.8
Least rain reported in a month
over 109 years		 cm 46.5 0.3 0.5 1.0 1.3 0.5 0.8 1.3 0.3 0.3 0.5 - 0.3
Heating degree days
over 30 years		 days 5882 1276 1036 777 404 146 15 2 7 78 343 689 1109
Cooling degree days
over 30 years		 days 1001 - - 1 11 74 220 312 245 121 17 - -
Most snow reported in a month
over 109 years		 cm 131.8 71.9 47.0 81.3 20.3 6.3 - - - - 8.4 28.4 48.5

Check weather averages for nearby locations (some locations might offer more data):
Latitude: 40°7'N, Longitude: 87°39'W, Elevation: 170.1 m, Distance: 11.93 km
Latitude: 40°2'N, Longitude: 88°16'W, Elevation: 229.5 m, Distance: 12.14 km
Latitude: 39°47'N, Longitude: 88°16'W, Elevation: 199.0 m, Distance: 13.04 km
Latitude: 40°11'N, Longitude: 87°35'W, Elevation: 209.1 m, Distance: 15.48 km
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