Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 21°F | 36°F | 28°F | 3.9" |
February | 21°F | 37°F | 29°F | 4.4" |
March | 29°F | 46°F | 37°F | 7.7" |
April | 39°F | 59°F | 48°F | 9.6" |
May | 49°F | 68°F | 58°F | 9.0" |
June | 57°F | 76°F | 66°F | 12.4" |
July | 63°F | 81°F | 72°F | 9.8" |
August | 61°F | 79°F | 70°F | 7.9" |
September | 55°F | 73°F | 63°F | 6.6" |
October | 44°F | 62°F | 53°F | 10.7" |
November | 35°F | 51°F | 43°F | 4.9" |
December | 27°F | 41°F | 34°F | 3.7" |
Index | Watertown | Connecticut | National |
Air quality index | 37 | 43 | 42 |
Pollution index | 161,427 | 8,629,883 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 342 |
Days with moderate air quality | 23 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.002% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Bristol, CT | 60,039 | 37 | 26.0% |
Thomaston, CT | 1,730 | 37 | 26.0% |
Northwest Harwinton, CT | 2,897 | 37 | 26.0% |
Woodbury Center, CT | 1,153 | 37 | 26.0% |
New Milford, CT | 6,749 | 37 | 26.0% |
Watertown, CT | 3,620 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Dover Base Housing, DE | 3,620 | 42 | 16.0% |
Golden Beach, MD | 3,620 | 47 | 6.0% |
Pine Level, AL | 3,621 | 52 | 4.0% |
Lake Isabella, CA | 3,621 | 67 | 34.0% |
Berwyn, PA | 3,621 | 51 | 2.0% |
Watertown, CT | 3,620 | 37 | 26.0% |