Seattle Tacoma Intl Ap, Washington

ID: USW00024233 Latitude: 47.4444 Longitude: -122.3139

Elevation: 370.1 feet ( 112.8 meters)

Source: NOAA Climate Normals 1991-2020

SEATTLE TACOMA INTL AP, WA US, STATE_NAME Temperature Chart Daily average maximum and minimum temperatures for SEATTLE TACOMA INTL AP, WA US, STATE_NAME 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, WA US, Washington Precipitation Chart Precipitation chart for SEATTLE TACOMA INTL AP, WA US, 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 Precipitation Total: 39.34 in., 15.49 cm.
Daylight Chart for Seattle Tacoma Intl Ap Daylight chart for Seattle Tacoma Intl Ap. 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

Monthly Data from NOAA Monthly Normals 2006-2020

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 47.7 49.1 53.6 58.9 66.7 71.4 78.0 78.0 71.4 60.1 52.0 46.2
Minimum Temperature °F 37.9 37.9 39.9 43.3 49.0 53.4 57.4 57.9 54.4 47.2 41.2 37.0
Heating Degree Days °F 688.3 601.9 566.1 418.3 233.0 110.8 24.2 19.1 96.6 352.2 552.0 725.2
Cooling Degree Days °F 0.0 0.0 0.3 1.3 11.3 32.8 107.7 110.5 33.6 0.4 0.0 0.0
Precipitation I 6.0 3.9 4.5 3.2 1.9 1.4 0.5 0.9 2.1 4.4 6.5 5.9

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 8.7 9.5 12.0 14.9 19.3 21.9 25.6 25.6 21.9 15.6 11.1 7.9
Minimum Temperature °C 3.3 3.3 4.4 6.3 9.4 11.9 14.1 14.4 12.4 8.4 5.1 2.8
Heating Degree Days °C 364.6 316.6 296.7 214.6 111.7 43.8 -4.3 -7.2 35.9 177.9 288.9 385.1
Cooling Degree Days °C -17.8 -17.8 -17.6 -17.1 -11.5 0.4 42.1 43.6 0.9 -17.6 -17.8 -17.8
Precipitation M 15.2 9.8 11.5 8.1 4.9 3.6 1.2 2.4 5.3 11.2 16.6 15.0
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