Weather Averages Alma, IL

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Weather Averages for
Alma, IL


Latitude: 38°38'N, Longitude: 88°57'W, Elevation: 570.0 ft, Distance: 7.24 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 12 years
°F 55 32 36 42 55 64 75 78 77 69 57 43 35
Average high temperature
over 12 years
°F 64 39 44 51 64 75 84 87 87 80 69 53 43
Average low temperature
over 12 years
°F 46 24 28 33 44 55 64 68 66 57 46 34 26
Highest recorded temperature
over 12 years
°F 109 75 73 84 89 96 104 109 100 102 95 84 71
Lowest recorded temperature
over 12 years
°F -11 -7 -11 -2 21 34 48 53 48 37 24 3 1
Average number of rainy days
over 45 years
days 72.8 6 5.1 6.5 6.8 7 7.1 6 6.6 5.2 5.4 5.1 6
Average number of days above 90°F
over 12 years
days 41.4 - - - - 1.6 9.8 12.5 11.5 5.6 0.4 - -
Average precipitation
over 45 years
in 40.9 2.8 2.3 3.5 4.0 4.5 4.3 3.3 3.8 3.2 3.3 3.1 2.9
Average relative humidity
over 12 years
% 69 74 73 69 66 68 68 69 71 67 66 68 73
Average dew point
over 12 years
°F 44 24 28 32 43 53 62 66 66 57 44 32 26
Average number of days below 32°F
over 12 years
days 99.6 25.6 19.2 14.9 1.9 - - - - - 1 14.6 22.4
Average number of days below 0°F
over 12 years
days 1.4 0.9 0.4 0.1 - - - - - - - - -
Average snowfall
over 16 years
in 15.1 3.7 2.7 4.6 0.2 - - - - - - 1.5 2.4