CLIMATE CHARTS

Diablo Dam, Washington

Latitude: 48.7142 Longitude: -121.1431

Elevation: 891.1 feet (271.6 meters)

Diablo Dam, Washington Temperature Chart Daily average maximum and minimum temperatures for Diablo 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 Diablo Dam, Washington Precipitation Chart Precipitation chart for Diablo 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 DIABLO DAM, WA Daylight chart for DIABLO 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 Diablo Dam, Washington

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 38.9 43.4 49.8 57.3 65.0 70.3 77.2 78.0 71.0 57.5 44.3 37.7
Minimum Temperature °F 29.8 30.2 33.3 37.5 43.5 49.1 52.9 53.3 48.1 41.0 34.6 29.6
Heating Degree Days °F 950 790 727 528 341 185 76 67 185 489 766 972
Cooling Degree Days °F 0 0 0 0 8 26 78 87 21 0 0 0
Precipitation in. 11.91 7.31 7.08 4.81 3.18 2.42 1.56 1.65 3.09 8.35 14.73 11.10

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 3.8 6.3 9.9 14.1 18.3 21.3 25.1 25.6 21.7 14.2 6.8 3.2
Minimum Temperature °C -1.2 -1.0 0.7 3.1 6.4 9.5 11.6 11.8 8.9 5.0 1.4 -1.3
Heating Degree Days °C 528 439 404 293 189 103 42 37 103 272 426 540
Cooling Degree Days °C 0 0 0 0 4 14 43 48 12 0 0 0
Precipitation cm. 30.25 18.57 17.98 12.22 8.08 6.15 3.96 4.19 7.85 21.21 37.41 28.19
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