Weather Averages Bolling AFB, DC

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Weather Averages for
Bolling AFB, DC


Latitude: 38°51'N, Longitude: 77°2'W, Elevation: 10.0 ft, Distance: 1.96 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 51 years
°F 57 36 37 46 57 66 75 78 78 71 60 48 39
Average high temperature
over 51 years
°F 66 43 46 55 66 75 84 87 86 80 69 57 46
Average low temperature
over 51 years
°F 48 28 30 37 46 55 64 69 69 62 50 39 32
Highest recorded temperature
over 51 years
°F 104 78 82 89 95 98 100 104 102 100 93 86 75
Lowest recorded temperature
over 51 years
°F -5 -5 3 14 24 34 46 53 48 39 28 16 3
Average number of rainy days
over 52 years
days 112 10 9 11 10 11 9 10 9 8 7 9 9
Average number of days above 90°F
over 51 years
days 35 - - - - 2 7 13 9 3 - - -
Average precipitation
over 51 years
in 39.3 2.8 2.6 3.4 2.8 3.9 3.3 4.0 4.1 3.3 3.0 3.0 3.1
Average dew point
over 54 years
°F 44 23 24 31 39 51 60 66 64 59 48 37 26
Average number of days above 70°F
over 51 years
days 177 - 1 4 11 24 29 31 31 27 15 4 1
Most recorded rainfall
over 51 years
in 57.5 7.1 5.7 8.4 6.9 10.7 11.5 12.9 14.3 12.4 8.6 6.7 6.5
Least recorded rainfall
over 51 years
in 26.9 0.3 0.4 0.7 - 0.8 0.9 0.9 0.5 0.2 - 0.3 0.2
Average number of days with thunderstorms
over 50 years
days 31 - - 1 3 5 6 7 5 2 1 1 -
Average number of days with fog
over 50 years
days 130 11 10 10 9 12 10 10 11 12 13 11 11
Average morning relative humidity
over 54 years
% 75 71 70 70 70 75 76 77 81 82 81 76 72
Average evening relative humidity
over 54 years
% 52 55 50 47 46 51 52 53 54 55 53 53 55
Average wind speed
over 54 years
mph 10.0 13.0 13.0 13.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 13.0
Average number of days below 32°F
over 51 years
days 71 21 18 9 1 - - - - - - 5 16
Average snowfall
over 50 years
in 16.6 5.3 5.3 2.1 - - - - - - - 0.8 3.1
Average number of clear days
over 45 years
days 97 8 7 7 7 7 8 7 9 10 11 8 8
Heating degree days
over 30 years
days 4047 942 770 552 264 60 - - - 14 195 456 794
Cooling degree days
over 30 years
days 1549 - - - 9 104 318 465 419 203 31 - -
Average possibility of sunshine
over 45 years
% 56 47 51 55 56 58 64 62 62 61 59 51 46
Average number of cloudy days
over 45 years
days 163 16 14 15 14 14 11 12 12 12 12 14 16
Average number of partly cloudy days
over 45 years
days 105 7 7 9 9 10 11 12 10 8 8 8 7
Average number of days below 10°F
over 51 years
days 2 1 - - - - - - - - - - -