Weather Averages Ashton, IL

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Weather Averages for
Ashton, IL



Latitude: 41°49'N, Longitude: 89°31'W, Elevation: 213.4 m, Distance: 10.14 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°C 8 -7 -5 2 9 15 21 23 21 17 10 3 -4
Average high temperature
over 30 years
°C 14 -2 0 7 15 22 27 29 28 24 17 8 0
Average low temperature
over 30 years
°C 3 -13 -10 -3 3 9 14 16 15 10 4 -1 -9
Highest recorded temperature
over 104 years
°C 43 17 21 30 33 40 41 43 39 38 35 27 20
Lowest recorded temperature
over 104 years
°C -32 -32 -32 -23 -13 -3 1 6 2 -5 -13 -22 -31
Average number of days above 27°C
over 30 years
days 26 - - - 0.1 1.1 5.1 9.5 6.9 2.9 0.1 - -
Average precipitation
over 30 years
cm 90.4 3.6 2.8 6.3 8.9 10.2 11.4 9.1 10.2 9.7 6.9 6.3 5.3
Average number of days below -1.5°C
over 30 years
days 141 29 26 23 9.1 0.9 - - - 0.5 6.6 19 28
Average number of days below -17.5°C
over 30 years
days 16 6.9 4.6 0.4 - - - - - - - 0.1 3.5
Average snowfall
over 30 years
cm 82.5 22.6 17.5 13.5 3.3 - - - - - 0.5 3.8 22.1
Most rain reported in a day
over 104 years
cm 13.0 4.8 4.6 5.6 6.6 12.4 11.9 13.0 10.4 12.7 11.9 7.4 6.1
Most rain reported in a month
over 104 years
cm 120.7 10.2 8.9 14.2 22.4 28.4 29.0 26.2 31.5 29.7 24.1 19.1 12.2
Least rain reported in a month
over 104 years
cm 47.0 - - 0.5 0.8 1.3 0.8 0.5 1.0 - - - 0.5
Heating degree days
over 30 years
days 6743 1427 1160 889 473 192 28 5 14 119 407 782 1247
Cooling degree days
over 30 years
days 845 - - - 9 59 180 282 216 85 14 - -
Most snow reported in a month
over 104 years
cm 181.9 118.1 59.2 67.3 39.4 2.0 - - - - 13.7 41.9 74.7