September Rainfall and Precipitation in Delaware
Average rainfall, rainy days and the driest cities in Delaware, the United States of America in September.
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Best Places to Visit in Delaware in September
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Delaware.
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.
Delaware precipitation in September: frequently asked questions
How much rainfall does Delaware, the United States of America receive in September?
September in Dover is marked by substantial rain, totaling an average of 109 mm (4.3 in). Rapid weather changes are common due to the frequent precipitation.
How many days does it rain in Delaware, the United States of America in September?
Dover sees roughly 8 days rainy days during September.
Is September part of the rainy season in Delaware, the United States of America?
September is generally a drier month for Delaware, the United States of America, falling outside the main rainy season.
What is the wettest city in September in Delaware, the United States of America?
In our database, Seaford stands out as having an average rainfall level of 138 mm (5.4 in), making it the wettest location.
What is the driest city in September in Delaware, the United States of America?
Based on our database, Smyrna sees the least rainfall in Delaware, the United States of America in September, with around 102 mm (4 in) on average.
Interested in more climate information?
We have much more information about the climate in Delaware.
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