September Rainfall and Precipitation in Washington State
Average rainfall, rainy days and the driest cities in Washington State, the United States of America in September.
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Best Places to Visit in Washington State in September
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Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.
Washington State precipitation in September: frequently asked questions
How much rainfall does Washington State, the United States of America receive in September?
Seattle sees moderate rainfall in September, averaging around 49 mm (1.9 in). Most days stay dry, with the occasional shower.
How many days does it rain in Washington State, the United States of America in September?
Expect around 9 days rainy days in Seattle during September.
Is September part of the rainy season in Washington State, the United States of America?
September is generally a drier month for Washington State, the United States of America, falling outside the main rainy season.
What is the wettest city in September in Washington State, the United States of America?
Kalaloch is the wettest city in Washington State, the United States of America in September according to our database, with average rainfall of around 139 mm (5.5 in).
What is the driest city in September in Washington State, the United States of America?
The driest place is Moses Lake with an average rainfall of 6.1 mm (0.2 in) according to our data.
Interested in more climate information?
We have much more information about the climate in Washington State.
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