CLIMATE CHARTS

Natl Arboretum Dc, Maryland

Latitude: 38.9133 Longitude: -76.9700

Elevation: 49.9 feet (15.2 meters)

Natl Arboretum Dc, Maryland Temperature Chart Daily average maximum and minimum temperatures for Natl Arboretum Dc, 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 Natl Arboretum Dc, Maryland Precipitation Chart Precipitation chart for Natl Arboretum Dc, 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 NATL ARBORETUM DC, MD Daylight chart for NATL ARBORETUM DC, MD. 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 Natl Arboretum Dc, Maryland

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 44.3 48.0 56.4 67.5 76.7 85.6 89.6 88.3 81.1 69.9 59.3 48.2
Minimum Temperature °F 26.7 28.8 36.0 45.3 55.1 64.7 69.6 67.7 59.4 47.0 38.3 30.1
Heating Degree Days °F 914 745 587 283 84 7 0 1 34 233 489 802
Cooling Degree Days °F 0 0 4 25 112 312 452 403 191 30 3 1
Precipitation in. 3.09 2.90 3.72 3.51 4.28 4.08 4.32 3.41 3.76 3.79 3.47 3.20

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 6.8 8.9 13.6 19.7 24.8 29.8 32.0 31.3 27.3 21.1 15.2 9.0
Minimum Temperature °C -2.9 -1.8 2.2 7.4 12.8 18.2 20.9 19.8 15.2 8.3 3.5 -1.1
Heating Degree Days °C 508 414 326 157 47 4 0 1 19 129 272 446
Cooling Degree Days °C 0 0 2 14 62 173 251 224 106 17 2 1
Precipitation cm. 7.85 7.37 9.45 8.92 10.87 10.36 10.97 8.66 9.55 9.63 8.81 8.13
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