CLIMATE CHARTS

Rockville, Maryland

Latitude: 39.1008 Longitude: -77.1486

Elevation: 440 feet (134.1 meters)

Rockville, Maryland Temperature Chart Daily average maximum and minimum temperatures for Rockville, Maryland 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 Rockville, Maryland Precipitation Chart Precipitation chart for Rockville, Maryland 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 ROCKVILLE, MD Daylight chart for ROCKVILLE, MD. Latitude 39.1. 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 Rockville, Maryland

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 40.4 43.7 53.3 64.5 72.8 81.3 85.0 83.2 75.8 64.8 54.7 43.8
Minimum Temperature °F 27.0 29.2 36.2 45.9 54.8 64.3 68.8 67.2 59.7 47.7 39.1 30.5
Heating Degree Days °F 970 799 631 313 120 15 0 2 55 288 544 863
Cooling Degree Days °F 0 0 4 19 83 249 369 318 138 17 1 0
Precipitation in. 2.88 2.71 3.61 3.22 4.13 3.49 3.67 2.90 3.83 3.29 3.53 3.00

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 4.7 6.5 11.8 18.1 22.7 27.4 29.4 28.4 24.3 18.2 12.6 6.6
Minimum Temperature °C -2.8 -1.6 2.3 7.7 12.7 17.9 20.4 19.6 15.4 8.7 3.9 -0.8
Heating Degree Days °C 539 444 351 174 67 8 0 1 31 160 302 479
Cooling Degree Days °C 0 0 2 11 46 138 205 177 77 9 1 0
Precipitation cm. 7.32 6.88 9.17 8.18 10.49 8.86 9.32 7.37 9.73 8.36 8.97 7.62
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