Weather Averages Bartlett, IL

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Weather Averages for
Bartlett, IL



Latitude: 41°49'N, Longitude: 88°4'W, Elevation: 207.3 m, Distance: 7.99 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°C 9 -6 -3 3 9 15 21 23 22 18 11 4 -2
Average high temperature
over 30 years
°C 15 -1 1 8 16 23 28 30 28 25 18 9 1
Average low temperature
over 30 years
°C 3 -10 -8 -2 3 8 13 16 15 11 5 0 -7
Highest recorded temperature
over 102 years
°C 40 18 21 29 32 35 39 40 37 37 32 25 20
Lowest recorded temperature
over 102 years
°C -32 -32 -29 -23 -15 -3 0 5 3 -2 -10 -20 -29
Average number of days above 27°C
over 30 years
days 11 - - - - 0.5 3 3.9 2.8 1 - - -
Average precipitation
over 30 years
cm 93.2 4.1 3.3 6.9 9.7 9.4 9.4 10.7 10.4 9.4 6.1 7.4 6.3
Average number of days below -1.5°C
over 30 years
days 62 13 11 10 4.1 0.7 - - - 0.1 2.4 8 12
Average number of days below -17.5°C
over 30 years
days 5.8 2.8 1.6 0.1 - - - - - - - - 1.2
Average snowfall
over 30 years
cm 89.2 27.9 21.8 12.2 4.1 0.3 - - - - 0.5 5.3 19.6
Most rain reported in a day
over 102 years
cm 23.4 7.4 4.1 8.6 13.2 9.7 10.4 23.4 15.2 7.9 14.2 7.6 7.6
Most rain reported in a month
over 102 years
cm 121.7 16.8 10.4 18.5 23.9 21.1 27.2 30.5 39.4 28.4 27.7 18.3 15.5
Least rain reported in a month
over 102 years
cm 59.2 0.3 - 1.0 1.0 - 1.5 0.3 1.5 - 0.5 1.5 -
Heating degree days
over 30 years
days 6331 1344 1096 840 469 196 32 6 11 97 369 730 1141
Cooling degree days
over 30 years
days 861 - - 1 10 53 177 279 229 98 14 - -
Most snow reported in a month
over 102 years
cm 175.8 104.4 51.6 42.7 28.4 5.1 - - - - 14.0 30.0 102.9