CLIMATE CHARTS

Ross Dam, Washington

Latitude: 48.7272 Longitude: -121.0722

Elevation: 1235.9 feet (376.7 meters)

Ross Dam, Washington Temperature Chart Daily average maximum and minimum temperatures for Ross Dam, Washington 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 Ross Dam, Washington Precipitation Chart Precipitation chart for Ross Dam, Washington 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 ROSS DAM, WA Daylight chart for ROSS DAM, WA. Latitude 48.7. 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 Ross Dam, Washington

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 38.2 41.8 48.3 55.9 64.1 69.9 77.6 77.9 70.0 56.5 43.8 37.5
Minimum Temperature °F 30.2 30.7 33.6 37.8 44.1 49.7 54.4 55.2 49.6 42.3 35.1 30.1
Heating Degree Days °F 955 805 746 545 344 184 67 58 182 484 766 967
Cooling Degree Days °F 0 0 0 0 6 28 98 106 26 0 0 0
Precipitation in. 9.28 5.91 5.17 3.09 2.10 1.69 1.23 1.25 2.10 6.10 11.22 8.47

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 3.4 5.4 9.1 13.3 17.8 21.1 25.3 25.5 21.1 13.6 6.6 3.1
Minimum Temperature °C -1.0 -0.7 0.9 3.2 6.7 9.8 12.4 12.9 9.8 5.7 1.7 -1.1
Heating Degree Days °C 531 447 414 303 191 102 37 32 101 269 426 537
Cooling Degree Days °C 0 0 0 0 3 16 54 59 14 0 0 0
Precipitation cm. 23.57 15.01 13.13 7.85 5.33 4.29 3.12 3.17 5.33 15.49 28.50 21.51
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