CLIMATE CHARTS

Seattle Tacoma Intl Ap, Washington

Latitude: 47.4444 Longitude: -122.3139

Elevation: 370.1 feet (112.8 meters)

Seattle Tacoma Intl Ap, Washington Temperature Chart Daily average maximum and minimum temperatures for Seattle Tacoma Intl Ap, 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 Tacoma Intl Ap, Washington Precipitation Chart Precipitation chart for Seattle Tacoma Intl Ap, 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 TACOMA INTL AP, WA Daylight chart for SEATTLE TACOMA INTL AP, WA. Latitude 47.4. 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 Tacoma Intl Ap, Washington

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 47.2 49.9 53.7 58.5 64.7 69.9 75.8 76.3 70.5 59.7 50.9 45.7
Minimum Temperature °F 36.9 36.9 39.3 42.2 47.3 51.9 55.6 55.9 52.1 45.8 40.0 35.6
Heating Degree Days °F 711 605 574 440 285 144 49 36 132 380 586 755
Cooling Degree Days °F 0 0 0 0 6 21 71 70 21 0 0 0
Precipitation in. 5.57 3.50 3.72 2.71 1.94 1.57 0.70 0.88 1.50 3.48 6.57 5.35

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 8.4 9.9 12.1 14.7 18.2 21.1 24.3 24.6 21.4 15.4 10.5 7.6
Minimum Temperature °C 2.7 2.7 4.1 5.7 8.5 11.1 13.1 13.3 11.2 7.7 4.4 2.0
Heating Degree Days °C 395 336 319 244 158 80 27 20 73 211 326 419
Cooling Degree Days °C 0 0 0 0 3 12 39 39 12 0 0 0
Precipitation cm. 14.15 8.89 9.45 6.88 4.93 3.99 1.78 2.24 3.81 8.84 16.69 13.59
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