Weather Averages Ashley, IL

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Weather Averages for
Ashley, IL


Latitude: 38°22'N, Longitude: 89°19'W, Elevation: 515.0 ft, Distance: 6.02 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°F 55 29 33 45 55 65 74 77 75 69 57 45 34
Average high temperature
over 30 years
°F 65 37 42 55 66 76 85 88 86 80 68 55 42
Average low temperature
over 30 years
°F 45 20 24 35 45 54 63 66 64 57 46 36 25
Highest recorded temperature
over 101 years
°F 109 73 75 84 89 93 102 109 105 104 93 82 73
Lowest recorded temperature
over 101 years
°F -20 -18 -20 1 21 28 42 46 42 24 21 6 -20
Average number of days above 90°F
over 30 years
days 16 - - - - 0.3 3.3 5.7 4.7 1.7 0.1 - -
Average precipitation
over 30 years
in 39.1 1.9 2.5 3.9 3.7 4.0 3.4 3.7 3.0 3.1 3.0 3.5 3.4
Average number of days below 32°F
over 30 years
days 45 11 9.7 6 1.4 0.1 - - - - 1 5.3 10
Average number of days below 0°F
over 30 years
days 1.7 0.8 0.4 - - - - - - - - - 0.4
Average snowfall
over 30 years
in 17.7 5.5 4.8 2.4 0.6 - - - - - - 0.8 3.6
Most rain reported in a day
over 101 years
in 7.8 4.0 3.5 4.0 4.3 4.7 4.4 3.4 7.8 3.8 5.0 3.4 3.8
Most rain reported in a month
over 101 years
in 57.6 10.3 6.3 13.1 10.2 16.8 11.2 11.6 21.2 8.3 14.0 12.1 10.2
Least rain reported in a month
over 101 years
in 23.8 0.1 0.1 - 0.6 0.4 0.2 0.3 0.1 0.2 0.2 0.2 0.3
Heating degree days
over 30 years
days 4777 1092 878 619 296 92 5 1 2 48 253 572 919
Cooling degree days
over 30 years
days 1334 - - 3 24 101 280 396 328 168 32 2 -
Most snow reported in a month
over 101 years
in 42.1 23.0 21.0 18.5 13.4 - - - - - 2.0 9.0 17.1