Average Rainfall for Connecticut in September
The tables below give monthly averages for rainfall during September at cities and towns in Connecticut.
Each place has a total for the amount of precipitation it usually receives this month. Most places also have information on the number of days with wet weather. This includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.
The rainfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.
You can jump to a separate table for places in Coastal Connecticut and Inland Connecticut.
Coastal Connecticut
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 8 | Bridgeport | 3.5 | 88 |
| 9 | Groton | 4.2 | 106 |
| – | New Haven | 4.4 | 111 |
| – | New London | 4.0 | 102 |
| 9 | Norwich | 4.6 | 116 |
| 10 | Stamford | 4.9 | 124 |
Inland Connecticut
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 9 | Burlington | 4.8 | 123 |
| 9 | Danbury | 4.7 | 118 |
| 10 | Hartford | 3.9 | 99 |
| 9 | Mansfield Hollow Lake | 4.1 | 104 |
| 10 | Middletown | 3.7 | 94 |
| 11 | Norfolk | 4.4 | 111 |
| 9 | West Thompson Lake | 3.6 | 92 |
| 9 | Woodbury | 4.6 | 116 |
Reference
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.