CLIMATE CHARTS

Coulee Dam, Washington

Latitude: 47.9544 Longitude: -118.9997

Elevation: 1719.2 feet (524.0 meters)

Coulee Dam, Washington Temperature Chart Daily average maximum and minimum temperatures for Coulee 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 Coulee Dam, Washington Precipitation Chart Precipitation chart for Coulee 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 COULEE DAM, WA Daylight chart for COULEE DAM, WA. Latitude 48. 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 Coulee Dam, Washington

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 33.4 40.2 51.5 61.3 70.4 78.3 87.1 86.7 76.5 60.8 43.0 32.4
Minimum Temperature °F 22.6 25.2 31.1 37.3 44.8 51.4 57.7 57.2 49.2 39.2 30.3 22.3
Heating Degree Days °F 1147 904 735 472 250 86 15 13 124 466 850 1167
Cooling Degree Days °F 0 0 0 1 20 81 244 229 59 1 0 0
Precipitation in. 1.06 0.96 0.91 0.87 1.15 1.05 0.64 0.28 0.44 0.68 1.30 1.45

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 0.8 4.6 10.8 16.3 21.3 25.7 30.6 30.4 24.7 16.0 6.1 0.2
Minimum Temperature °C -5.2 -3.8 -0.5 2.9 7.1 10.8 14.3 14.0 9.6 4.0 -0.9 -5.4
Heating Degree Days °C 637 502 408 262 139 48 8 7 69 259 472 648
Cooling Degree Days °C 0 0 0 1 11 45 136 127 33 1 0 0
Precipitation cm. 2.69 2.44 2.31 2.21 2.92 2.67 1.63 0.71 1.12 1.73 3.30 3.68
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