Skip to content
VSWeather

Seattle, WA vs Washington, DC weather comparison

Seattle

WA

Washington endures about 42 more days above 90 °F each year.

Seattle has around 51 fewer freezing nights a year. Washington enjoys about 59 more sunny days a year than Seattle.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Seattle, WA and Washington, DC
SeattleMetricWashington
147 daysSunny daysclear or partly cloudy skies206 days
37 inPrecipitationper year42 in
157 daysWet daysrain or snow per year119 days
6 inSnowfallper year12 in
3 daysHot daysabove 90 °F45 days
28 daysFreezing nightsat or below 32 °F79 days
78%Humidityaverage relative69%
54 °FAverage temperatureyear round58 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

SeattleWashington

Daily highs

6080JanMarMayJulSepNovSeattle, Jan: 48 °FSeattle, Feb: 50 °FSeattle, Mar: 55 °FSeattle, Apr: 59 °FSeattle, May: 66 °FSeattle, Jun: 71 °FSeattle, Jul: 77 °FSeattle, Aug: 77 °FSeattle, Sep: 72 °FSeattle, Oct: 61 °FSeattle, Nov: 53 °FSeattle, Dec: 47 °FWashington, Jan: 44 °FWashington, Feb: 48 °FWashington, Mar: 56 °FWashington, Apr: 68 °FWashington, May: 77 °FWashington, Jun: 85 °FWashington, Jul: 90 °FWashington, Aug: 88 °FWashington, Sep: 81 °FWashington, Oct: 70 °FWashington, Nov: 58 °FWashington, Dec: 49 °F

Daily lows

4060JanMarMayJulSepNovSeattle, Jan: 37 °FSeattle, Feb: 37 °FSeattle, Mar: 39 °FSeattle, Apr: 43 °FSeattle, May: 49 °FSeattle, Jun: 53 °FSeattle, Jul: 57 °FSeattle, Aug: 58 °FSeattle, Sep: 54 °FSeattle, Oct: 47 °FSeattle, Nov: 40 °FSeattle, Dec: 37 °FWashington, Jan: 28 °FWashington, Feb: 30 °FWashington, Mar: 37 °FWashington, Apr: 47 °FWashington, May: 57 °FWashington, Jun: 66 °FWashington, Jul: 71 °FWashington, Aug: 69 °FWashington, Sep: 62 °FWashington, Oct: 49 °FWashington, Nov: 39 °FWashington, Dec: 32 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Seattle high485055596671777772615347
Washington high444856687785908881705849
Seattle low373739434953575854474037
Washington low283037475766716962493932

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

SeattleWashington
0.02.04.0JanMarMayJulSepNovSeattle, Jan: 4.9 inSeattle, Feb: 3.4 inSeattle, Mar: 3.9 inSeattle, Apr: 3.2 inSeattle, May: 2.1 inSeattle, Jun: 1.7 inSeattle, Jul: 0.7 inSeattle, Aug: 0.9 inSeattle, Sep: 1.9 inSeattle, Oct: 3.7 inSeattle, Nov: 5.4 inSeattle, Dec: 5.0 inWashington, Jan: 3.1 inWashington, Feb: 2.9 inWashington, Mar: 3.9 inWashington, Apr: 3.4 inWashington, May: 3.8 inWashington, Jun: 3.5 inWashington, Jul: 4.1 inWashington, Aug: 3.5 inWashington, Sep: 4.3 inWashington, Oct: 3.4 inWashington, Nov: 2.9 inWashington, Dec: 3.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Seattle4.93.43.93.22.11.70.70.91.93.75.45.0
Washington3.12.93.93.43.83.54.13.54.33.42.93.5

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

SeattleWashington
01020JanMarMayJulSepNovSeattle, Jan: 7 daysSeattle, Feb: 10 daysSeattle, Mar: 9 daysSeattle, Apr: 10 daysSeattle, May: 12 daysSeattle, Jun: 13 daysSeattle, Jul: 20 daysSeattle, Aug: 21 daysSeattle, Sep: 18 daysSeattle, Oct: 12 daysSeattle, Nov: 8 daysSeattle, Dec: 7 daysWashington, Jan: 16 daysWashington, Feb: 15 daysWashington, Mar: 16 daysWashington, Apr: 16 daysWashington, May: 16 daysWashington, Jun: 17 daysWashington, Jul: 19 daysWashington, Aug: 19 daysWashington, Sep: 18 daysWashington, Oct: 19 daysWashington, Nov: 18 daysWashington, Dec: 17 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Seattle71091012132021181287
Washington161516161617191918191817

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).