Washington September Weather
Washington weather averages and all-time records in the month of September from 1991–2020 based on data made available by the NOAA.
State:
Month:
Statewide September Averages |
High temperature |
70.8 °F |
Low temperature |
46.1 °F |
Precipitation |
1.7 inches |
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Washington Cities
September weather averages for various places in Washington, from 1991–2020.