Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 20°F | 39°F | 29°F | 2.7" |
February | 20°F | 40°F | 30°F | 2.9" |
March | 28°F | 49°F | 38°F | 3.1" |
April | 39°F | 63°F | 50°F | 3.6" |
May | 48°F | 73°F | 60°F | 3.5" |
June | 57°F | 80°F | 68°F | 5.1" |
July | 64°F | 86°F | 74°F | 4.1" |
August | 61°F | 83°F | 72°F | 4.2" |
September | 54°F | 78°F | 65°F | 3.2" |
October | 43°F | 66°F | 54°F | 4.1" |
November | 33°F | 55°F | 43°F | 3.2" |
December | 26°F | 44°F | 35°F | 4.0" |
Index | Deep River Center | Connecticut | National |
Air quality index | 41 | 43 | 42 |
Pollution index | 4,117,250 | 8,629,883 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 280 |
Days with moderate air quality | 71 |
Days w/ poor A.Q. for sensitive groups | 12 |
Days with unhealthy air quality | 2 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.050% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Colchester, CT | 5,147 | 33 | 34.0% |
Fenwick, CT | 44 | 37 | 26.0% |
Old Saybrook Center, CT | 1,984 | 37 | 26.0% |
Moodus, CT | 1,802 | 37 | 26.0% |
Niantic, CT | 3,083 | 37 | 26.0% |
Deep River Center, CT | 2,638 | 41 | 18.0% |
City | Population | Air Quality Index | National Avg. |
Sutter Creek, CA | 2,638 | 39 | 22.0% |
Thunderbolt, GA | 2,638 | 39 | 22.0% |
St. Paul, NE | 2,638 | 19 | 62.0% |
Perry, ON | 2,638 | n/a | |
Farm Loop, AK | 2,637 | 31 | 38.0% |
Deep River Center, CT | 2,638 | 41 | 18.0% |