September Rainfall and Precipitation in Connecticut
Average rainfall, rainy days and the driest cities in Connecticut, the United States of America in September.
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Best Places to Visit in Connecticut in September
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Connecticut.
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.
Connecticut precipitation in September: frequently asked questions
How much rainfall does Connecticut, the United States of America receive in September?
Rainfall in Mystic during September is on the lighter side, averaging about 98 mm (3.9 in). Expect predominantly dry weather punctuated by short showers.
How many days does it rain in Connecticut, the United States of America in September?
On average, Mystic has about 9 days days of rain in September.
Is September part of the rainy season in Connecticut, the United States of America?
September is generally a drier month for Connecticut, the United States of America, falling outside the main rainy season.
What is the wettest city in September in Connecticut, the United States of America?
Based on our records, Old Saybrook receives the most rainfall in Connecticut, the United States of America in September, averaging about 115 mm (4.5 in).
What is the driest city in September in Connecticut, the United States of America?
Based on our database, Manchester sees the least rainfall in Connecticut, the United States of America in September, with around 81 mm (3.2 in) on average.
Interested in more climate information?
We have much more information about the climate in Connecticut.
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