CLIMATE CHARTS

Seattle Boeing Fld, Washington

Latitude: 47.5303 Longitude: -122.3008

Elevation: 20 feet (6.1 meters)

Seattle Boeing Fld, Washington Temperature Chart Daily average maximum and minimum temperatures for Seattle Boeing Fld, 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 Seattle Boeing Fld, Washington Precipitation Chart Precipitation chart for Seattle Boeing Fld, 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 SEATTLE BOEING FLD, WA Daylight chart for SEATTLE BOEING FLD, WA. Latitude 47.5. 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 Seattle Boeing Fld, Washington

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 47.8 50.4 54.1 58.7 65.0 70.3 75.7 76.2 70.3 60.1 51.7 46.2
Minimum Temperature °F 36.7 36.3 39.9 43.9 47.5 53.6 57.6 57.8 52.8 45.9 39.8 35.5
Heating Degree Days °F 705 606 558 411 276 119 34 24 123 372 578 748
Cooling Degree Days °F 0 0 0 0 5 28 85 86 19 0 0 0
Precipitation in. 5.72 3.89 3.76 2.94 2.68 1.47 0.84 0.99 1.62 3.73 6.50 5.74

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 8.8 10.2 12.3 14.8 18.3 21.3 24.3 24.6 21.3 15.6 10.9 7.9
Minimum Temperature °C 2.6 2.4 4.4 6.6 8.6 12.0 14.2 14.3 11.6 7.7 4.3 1.9
Heating Degree Days °C 392 337 310 228 153 66 19 13 68 207 321 416
Cooling Degree Days °C 0 0 0 0 3 16 47 48 11 0 0 0
Precipitation cm. 14.53 9.88 9.55 7.47 6.81 3.73 2.13 2.51 4.11 9.47 16.51 14.58
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