Weather Averages Black Diamond, WA

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Weather Averages for
Black Diamond, WA


Latitude: 47°23'N, Longitude: 121°58'W, Elevation: 540.0 ft, Distance: 4.42 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 68 years
°F 48 37 39 43 46 53 57 62 60 57 48 42 37
Average high temperature
over 68 years
°F 59 43 48 52 58 65 69 75 75 69 59 49 44
Average low temperature
over 68 years
°F 39 31 32 34 37 41 46 49 48 44 39 35 32
Average precipitation
over 68 years
in 56.7 7.3 5.8 5.6 4.4 3.4 3.1 1.5 1.7 3.1 5.3 7.6 7.9
Average snowfall
over 68 years
in 10.3 4.0 1.6 1.1 0.1 - - - - - - 1.3 2.2
Average snow cover
over 68 years
in - 1.0 - - - - - - - - - - -
Heating degree days
over 30 years
days 5854 859 680 676 543 384 210 109 128 241 481 684 859
Cooling degree days
over 30 years
days 88 - - - - - 9 28 44 7 - - -