Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 23°F | 40°F | 32°F | 2.6" |
February | 23°F | 41°F | 32°F | 2.8" |
March | 30°F | 48°F | 39°F | 3.4" |
April | 40°F | 60°F | 50°F | 4.5" |
May | 50°F | 69°F | 59°F | 3.8" |
June | 60°F | 78°F | 68°F | 4.7" |
July | 66°F | 84°F | 75°F | 3.1" |
August | 64°F | 82°F | 74°F | 3.7" |
September | 58°F | 77°F | 67°F | 3.2" |
October | 47°F | 66°F | 57°F | 4.5" |
November | 37°F | 55°F | 46°F | 2.9" |
December | 30°F | 45°F | 37°F | 4.2" |
Index | Guilford 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. |
Essex Village, CT | 2,757 | 37 | 26.0% |
Chester Center, CT | 1,731 | 37 | 26.0% |
Saybrook Manor, CT | 1,049 | 37 | 26.0% |
Durham, CT | 3,542 | 41 | 18.0% |
Deep River Center, CT | 2,638 | 41 | 18.0% |
Guilford Center, CT | 2,653 | 41 | 18.0% |
City | Population | Air Quality Index | National Avg. |
University Park, MD | 2,653 | 47 | 6.0% |
Sand Hill, PA | 2,653 | 42 | 16.0% |
Glen Rose, TX | 2,653 | 33 | 34.0% |
North Middletown, NJ | 2,652 | 51 | 2.0% |
Coudersport, PA | 2,652 | 35 | 30.0% |
Guilford Center, CT | 2,653 | 41 | 18.0% |