Weather Averages Alto Pass, IL

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Weather Averages for
Alto Pass, IL



Latitude: 37°28'N, Longitude: 89°13'W, Elevation: 195.1 m, Distance: 5.65 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 123 years
°C 12 0 2 7 13 18 22 25 25 20 15 7 1
Average high temperature
over 102 years
°C 18 5 7 13 20 25 28 31 30 26 20 13 6
Average low temperature
over 102 years
°C 6 -3 -2 1 6 11 16 18 17 15 7 1 -2
Highest recorded temperature
over 110 years
°C 44 24 25 32 33 36 40 44 43 41 35 28 24
Lowest recorded temperature
over 110 years
°C -28 -28 -25 - -6 0 5 7 7 0 -6 -20 -25
Average number of days above 27°C
over 30 years
days 42 - - - 0.1 1.1 8.3 15 12 5.2 0.4 - -
Average precipitation
over 123 years
cm 120.4 9.1 8.1 11.9 11.7 12.4 11.2 8.9 9.7 8.9 8.4 10.2 9.7
Average number of days below -1.5°C
over 30 years
days 80 21 17 11 1.9 - - - - - 1.4 9.4 19
Average number of days below -17.5°C
over 30 years
days 1.8 1 0.3 - - - - - - - - - 0.4
Average snowfall
over 30 years
cm 40.9 14.0 12.2 6.1 0.5 - - - - - - 1.3 6.9
Most rain reported in a day
over 110 years
cm 13.7 10.7 10.2 13.7 9.1 12.2 12.4 11.4 11.4 11.4 9.7 13.0 13.2
Most rain reported in a month
over 110 years
cm 182.1 42.2 21.8 36.1 30.5 35.1 46.2 34.5 32.5 29.7 26.7 23.6 33.0
Least rain reported in a month
over 110 years
cm 69.8 - 0.8 2.0 1.8 0.8 0.8 0.5 0.8 - - 1.0 0.5
Heating degree days
over 30 years
days 4419 1027 810 564 255 71 3 - 1 37 228 526 897
Cooling degree days
over 30 years
days 1403 - - 4 30 110 289 406 353 177 32 2 -
Most snow reported in a month
over 110 years
cm 111.8 56.1 59.9 47.5 5.1 - - - - - 10.2 17.8 42.4