CLIMATE CHARTS

Washington Dc Dulles Ap, Virginia

Latitude: 38.9408 Longitude: -77.4636

Elevation: 290 feet (88.4 meters)

Washington Dc Dulles Ap, Virginia Temperature Chart Daily average maximum and minimum temperatures for Washington Dc Dulles Ap, Virginia Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F  °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3 Washington Dc Dulles Ap, Virginia Precipitation Chart Precipitation chart for Washington Dc Dulles Ap, Virginia Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Daylight Chart for WASHINGTON DC DULLES AP, VA Daylight chart for WASHINGTON DC DULLES AP, VA. Latitude 38.9. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

Monthly Data Table for Washington Dc Dulles Ap, Virginia

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 42.5 46.4 55.5 66.7 75.1 83.8 87.9 86.6 79.4 68.2 57.5 46.0
Minimum Temperature °F 23.9 26.0 32.9 42.1 51.2 61.0 65.5 64.2 56.3 43.8 35.3 27.1
Heating Degree Days °F 986 806 647 335 130 15 0 2 56 298 560 882
Cooling Degree Days °F 0 0 3 17 72 237 363 324 141 19 2 0
Precipitation in. 2.68 2.74 3.38 3.47 4.55 3.98 3.67 3.53 3.92 3.25 3.41 2.96

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 5.8 8.0 13.1 19.3 23.9 28.8 31.1 30.3 26.3 20.1 14.2 7.8
Minimum Temperature °C -4.5 -3.3 0.5 5.6 10.7 16.1 18.6 17.9 13.5 6.6 1.8 -2.7
Heating Degree Days °C 548 448 359 186 72 8 0 1 31 166 311 490
Cooling Degree Days °C 0 0 2 9 40 132 202 180 78 11 1 0
Precipitation cm. 6.81 6.96 8.59 8.81 11.56 10.11 9.32 8.97 9.96 8.26 8.66 7.52
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