Weather Averages Allerton, IA

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Weather Averages for
Allerton, IA


Latitude: 40°43'N, Longitude: 93°37'W, Elevation: 1000.0 ft, Distance: 12.85 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°F 49 20 24 37 49 61 70 75 72 64 53 38 24
Average high temperature
over 30 years
°F 60 30 36 48 61 72 81 87 84 76 65 48 34
Average low temperature
over 30 years
°F 37 9 14 26 37 49 58 64 61 52 40 28 15
Highest recorded temperature
over 95 years
°F 109 62 75 87 91 93 107 109 107 102 95 77 68
Lowest recorded temperature
over 95 years
°F -36 -29 -36 -16 6 23 35 44 35 21 12 -11 -32
Average number of days above 90°F
over 30 years
days 12 - - - 0.1 0.2 2.1 5.3 3.8 1 - - -
Average precipitation
over 30 years
in 35.8 1.0 1.0 2.3 3.5 4.5 4.4 4.0 4.5 4.2 3.0 2.1 1.4
Average number of days below 32°F
over 30 years
days 68 14 12 10 4 0.5 - - - 0.4 3.1 9.4 14
Average number of days below 0°F
over 30 years
days 7.1 3.3 2 0.2 - - - - - - - 0.1 1.5
Average snowfall
over 30 years
in 23.8 5.8 5.6 3.9 1.2 - - - - - - 2.1 5.9
Most rain reported in a day
over 95 years
in 7.3 1.6 1.4 1.9 2.9 3.7 4.0 4.6 7.3 6.6 3.6 2.0 2.2
Most rain reported in a month
over 95 years
in 52.7 4.0 4.6 6.9 9.9 11.3 8.1 20.7 11.4 15.8 6.8 6.2 3.9
Least rain reported in a month
over 95 years
in 15.9 - 0.1 - 0.7 0.3 0.8 0.3 0.5 0.8 - - 0.1
Heating degree days
over 30 years
days 6184 1334 1066 804 403 149 18 2 9 94 356 747 1202
Cooling degree days
over 30 years
days 1004 - - 1 14 61 197 340 269 106 16 - -
Most snow reported in a month
over 95 years
in 54.6 21.8 14.5 18.0 12.0 - - - - - 0.4 10.6 17.5