CLIMATE CHARTS

Chief Joseph Dam, Washington

Latitude: 47.9967 Longitude: -119.6483

Elevation: 834 feet (254.2 meters)

Chief Joseph Dam, Washington Temperature Chart Daily average maximum and minimum temperatures for Chief Joseph 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 Chief Joseph Dam, Washington Precipitation Chart Precipitation chart for Chief Joseph 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 CHIEF JOSEPH DAM, WA Daylight chart for CHIEF JOSEPH 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 Chief Joseph Dam, Washington

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 34.9 41.6 55.0 65.2 74.0 81.3 90.3 90.1 79.7 63.3 45.3 33.9
Minimum Temperature °F 22.9 25.5 32.0 37.8 45.3 52.2 57.9 56.9 48.3 37.4 29.8 22.4
Heating Degree Days °F 1119 880 667 406 195 53 7 8 103 455 823 1142
Cooling Degree Days °F 0 0 0 1 30 106 289 271 73 1 0 0
Precipitation in. 1.38 1.05 0.90 0.55 0.96 0.90 0.56 0.26 0.39 0.60 1.43 1.86

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 1.6 5.3 12.8 18.4 23.3 27.4 32.4 32.3 26.5 17.4 7.4 1.1
Minimum Temperature °C -5.1 -3.6 0.0 3.2 7.4 11.2 14.4 13.8 9.1 3.0 -1.2 -5.3
Heating Degree Days °C 622 489 371 226 108 29 4 4 57 253 457 634
Cooling Degree Days °C 0 0 0 1 17 59 161 151 41 1 0 0
Precipitation cm. 3.51 2.67 2.29 1.40 2.44 2.29 1.42 0.66 0.99 1.52 3.63 4.72
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