Weather Averages Alder, MT

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Weather Averages for
Alder, MT



Latitude: 45°15'N, Longitude: 112°33'W, Elevation: 1596.5 m, Distance: 8.96 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 20 years
°C 5 -7 -4 -1 5 10 13 18 17 12 7 0 -4
Average high temperature
over 20 years
°C 13 0 2 5 12 17 21 28 27 21 15 6 1
Average low temperature
over 20 years
°C -1 -13 -11 -7 -2 2 6 9 8 3 0 -7 -10
Highest recorded temperature
over 20 years
°C 38 12 17 20 27 32 34 38 38 35 28 20 14
Lowest recorded temperature
over 20 years
°C -36 -36 -34 -30 -17 -10 -3 0 -1 -9 -13 -33 -30
Average number of rainy days
over 21 years
days 24.7 1.2 1.2 1.4 2.4 4.1 4.2 2 1.8 2.3 1.5 1.4 1.2
Average number of days above 27°C
over 12 years
days 17.1 - - - - 0.1 1.3 9 5.7 1 - - -
Average precipitation
over 21 years
cm 23.1 0.8 0.8 1.3 2.0 4.1 5.1 2.0 1.8 2.5 1.0 0.8 0.8
Average relative humidity
over 12 years
% 59 67 66 65 58 58 56 47 48 53 57 64 67
Average dew point
over 12 years
°C -2 -12 -10 -8 -4 1 4 6 5 1 -2 -7 -9
Average number of days below -1.5°C
over 12 years
days 201 30.3 26.9 29.5 22.2 9.5 1.1 - 0.2 6 17.5 27.2 30.6
Average number of days below -17.5°C
over 12 years
days 24 8.5 5.3 4.1 - - - - - - - 2.6 3.5
Average snowfall
over 19 years
cm 84.3 12.4 12.2 16.3 13.5 4.6 - - - 2.5 3.0 9.1 10.7
Average snow cover
over 45 years
cm - 2.5 2.5 2.5 - - - - - - - - 2.5
Heating degree days
over 30 years
days 8246 1339 1058 1008 708 462 207 57 110 348 629 1002 1318
Cooling degree days
over 30 years
days 218 - - - - - 21 88 88 21 - - -