Weather Averages Capitol Hill, WA

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Weather Averages for
Capitol Hill, WA



Latitude: 47°39'N, Longitude: 122°18'W, Elevation: 6.1 m, Distance: 0.93 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 92 years		 °C 11 5 6 7 10 13 16 18 18 16 12 8 6
Average high temperature
over 92 years		 °C 15 7 9 11 14 17 20 23 23 20 15 10 8
Average low temperature
over 92 years		 °C 7 2 3 4 6 8 11 13 13 11 8 5 3
Highest recorded temperature
over 92 years		 °C 37 19 21 24 30 33 37 37 36 33 27 22 18
Lowest recorded temperature
over 92 years		 °C - - -17 -5 -1 1 4 6 7 2 -7 - -12
Average number of rainy days
over 43 years		 days 150 18 16 17 14 11 9 5 6 8 11 18 18
Average number of days above 27°C
over 92 years		 days 1 - - - - - - 1 - - - - -
Average precipitation
over 92 years		 cm 86.4 13.0 9.4 8.4 5.6 4.3 3.6 1.8 2.3 4.1 7.6 13.0 13.7
Most recorded rainfall
over 92 years		 cm 122.2 27.7 20.6 18.3 13.5 11.9 9.4 5.6 14.0 14.2 20.3 28.4 38.9
Least recorded rainfall
over 92 years		 cm 49.5 1.5 0.8 1.0 0.5 0.8 - - - - 0.5 1.3 2.5
Average number of days with thunderstorms
over 25 years		 days 1 - - - - - - - 1 - - - -
Average number of days with fog
over 25 years		 days 26 3 2 1 1 1 1 1 3 4 3 3 3
Average snowfall
over 43 years		 cm 18.0 7.6 2.3 1.5 - - - - - - - 1.8 4.8
Average number of clear days
over 24 years		 days 71 3 3 4 5 7 7 12 10 9 5 3 3
Average snow cover
over 27 years		 cm - - - - - - - - - - - - -
Heating degree days
over 30 years		 days 4611 735 580 570 438 276 123 44 58 144 357 561 725
Cooling degree days
over 30 years		 days 167 - - - - - 15 54 80 18 - - -
Average possibility of sunshine
over 31 years		 % 43 28 34 42 47 52 49 63 56 53 37 28 23
Average number of cloudy days
over 24 years		 days 201 23 19 19 16 14 15 9 11 13 18 21 23
Average number of partly cloudy days
over 24 years		 days 93 5 6 8 9 10 8 10 10 8 8 6 5
Average number of days below 4.5°C
over 92 years		 days 172 29 26 28 21 8 1 - - 1 10 22 28
Average number of days above 19.5°C
over 92 years		 days 43 - - - 1 3 7 14 13 5 - - -

Check weather averages for nearby locations (some locations might offer more data):
Latitude: 47°36'N, Longitude: 122°20'W, Elevation: 3.0 m, Distance: 1.50 km
Latitude: 47°42'N, Longitude: 122°19'W, Elevation: 128.0 m, Distance: 2.83 km
Latitude: 47°41'N, Longitude: 122°15'W, Elevation: 18.3 m, Distance: 2.97 km
Latitude: 47°44'N, Longitude: 122°19'W, Elevation: 103.6 m, Distance: 4.26 km
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