Climate for Seattle C.O., Washington

Home : Climate Graphs: Washington : Seattle C.O.

Average Temperatures for Seattle C.O.

Average Temperature for Seattle C.O., Washington
MonthLowHigh
Jan36.0°F46.9°F
Feb37.1°F50.5°F
Mar39.2°F54.5°F
Apr42.5°F59.3°F
May48.2°F64.9°F
Jun52.7°F69.5°F
Jul56.4°F74.5°F
Aug57.1°F74.9°F
Sept52.6°F69.9°F
Oct46.4°F60.3°F
Nov40.4°F51.5°F
Dec36.1°F46.5°F

Seattle C.O.'s coldest month is January when the average temperature overnight is 36.0°F. In August, the warmest month, the average day time temperature rises to 74.9°F.

Average Rainfall for Seattle C.O.

Average Rainfall for Seattle C.O., Washington
MonthPrecipitation
Jan5.24in.
Feb4.09in.
Mar3.92in.
Apr2.75in.
May2.03in.
Jun1.55in.
Jul0.93in.
Aug1.16in.
Sept1.61in.
Oct3.24in.
Nov5.67in.
Dec6.06in.

The driest month in Seattle C.O. is July with 0.93 inches of precipitation, and with 6.06 inches December is the wettest month.

Monthly Sunshine Hours

Percentage of Sunshine for Seattle C.O., Washington
MonthSunshine Hours
Jan28%
Feb34%
Mar42%
Apr47%
May52%
Jun49%
Jul63%
Aug56%
Sept53%
Oct37%
Nov28%
Dec23%

Sunshine hours refers to the amount sunshine there is during the hours of daylight. A higher percentage means there is more sunshine through the day and a lower percentage will indicate that it is probably cloudier. Sunshine hours are important when you are planning your vacation.