Weather Averages Alder, MT

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Weather Averages for
Alder, MT


Latitude: 45°15'N, Longitude: 112°33'W, Elevation: 5238.0 ft, Distance: 14.42 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 20 years
°F 42 19 24 30 41 50 57 66 64 55 44 31 24
Average high temperature
over 20 years
°F 55 31 36 42 55 64 71 84 82 71 59 43 35
Average low temperature
over 20 years
°F 28 8 12 17 28 36 43 48 46 39 31 19 14
Highest recorded temperature
over 20 years
°F 102 53 62 68 82 89 93 100 102 95 82 68 57
Lowest recorded temperature
over 20 years
°F -32 -32 -29 -22 1 14 24 33 30 15 6 -29 -22
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 90°F
over 12 years
days 17.1 - - - - 0.1 1.3 9 5.7 1 - - -
Average precipitation
over 21 years
in 9.1 0.3 0.3 0.5 0.8 1.6 2.0 0.8 0.7 1.0 0.4 0.3 0.3
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
°F 26 10 14 17 24 34 39 43 41 35 28 17 15
Average number of days below 32°F
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 0°F
over 12 years
days 24 8.5 5.3 4.1 - - - - - - - 2.6 3.5
Average snowfall
over 19 years
in 33.2 4.9 4.8 6.4 5.3 1.8 - - - 1.0 1.2 3.6 4.2
Average snow cover
over 45 years
in - 1.0 1.0 1.0 - - - - - - - - 1.0
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 - - -