Weather Averages Glasgow, MT

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Weather Averages for
Glasgow, MT



Latitude: 48°13'N, Longitude: 106°37'W, Elevation: 696.2 m, Distance: 6.91 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 48 years
°C 6 -12 -8 -1 6 13 17 21 21 14 7 -1 -8
Average high temperature
over 48 years
°C 12 -6 -2 3 13 20 25 29 28 21 15 4 -3
Average low temperature
over 48 years
°C 0 - -13 -7 0 6 10 13 12 6 0 -7 -13
Highest recorded temperature
over 48 years
°C 42 13 21 26 33 38 42 42 42 39 33 23 15
Lowest recorded temperature
over 48 years
°C -45 -45 -38 -33 -20 -8 -1 5 0 -9 -21 -32 -38
Average number of rainy days
over 38 years
days 90 8 7 7 7 10 11 8 7 6 5 6 8
Average number of days above 27°C
over 48 years
days 24 - - - - 1 3 9 9 2 - - -
Average precipitation
over 48 years
cm 28.7 1.0 0.8 1.0 2.0 4.3 6.1 4.1 3.6 2.3 1.5 0.8 1.0
Average dew point
over 39 years
°C -2 -15 -11 -6 -2 2 7 9 7 3 -1 -7 -12
Most recorded rainfall
over 48 years
cm 48.3 3.6 3.6 3.6 6.6 12.4 17.5 15.0 14.5 10.4 4.6 3.3 3.8
Least recorded rainfall
over 48 years
cm 17.0 - - - - - 0.3 - - - - - -
Average number of days with thunderstorms
over 45 years
days 28 - - - 1 4 7 8 6 2 - - -
Average number of days with fog
over 45 years
days 46 8 6 6 3 3 2 1 1 2 2 5 7
Average morning relative humidity
over 40 years
% 75 77 80 81 75 73 75 73 68 72 74 79 79
Average evening relative humidity
over 40 years
% 51 74 71 58 41 39 39 33 31 37 46 65 74
Average wind speed
over 39 years
km/h 19.3 19.3 19.3 19.3 19.3 19.3 19.3 17.7 19.3 19.3 17.7 17.7 17.7
Average number of days below -1.5°C
over 48 years
days 179 31 27 28 16 2 - - - 2 13 27 31
Average snowfall
over 38 years
cm 69.3 15.7 10.7 9.4 6.1 1.5 - - - 0.5 3.3 8.4 13.7
Average number of days above 14.5°C
over 48 years
days 149 - - 1 8 20 27 31 30 21 10 1 -
Average number of clear days
over 38 years
days 86 6 5 5 5 6 7 12 12 9 8 6 5
Average snow cover
over 44 years
cm 2.5 10.2 10.2 5.1 - - - - - - - 2.5 5.1
Heating degree days
over 30 years
days 8745 1686 1330 1104 621 322 121 19 71 267 586 1074 1544
Cooling degree days
over 30 years
days 558 - - - - 12 103 199 208 36 - - -
Average number of cloudy days
over 38 years
days 168 18 16 17 16 15 11 7 8 11 14 17 18
Average number of partly cloudy days
over 38 years
days 111 7 7 9 9 10 12 12 11 10 9 7 8