Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 9°F | 28°F | 19°F | 2.1" |
February | 11°F | 30°F | 20°F | 2.5" |
March | 19°F | 39°F | 29°F | 2.7" |
April | 32°F | 55°F | 43°F | 3.3" |
May | 43°F | 68°F | 55°F | 4.3" |
June | 52°F | 75°F | 63°F | 6.0" |
July | 57°F | 79°F | 68°F | 5.5" |
August | 55°F | 78°F | 66°F | 4.0" |
September | 48°F | 71°F | 59°F | 3.3" |
October | 38°F | 58°F | 47°F | 5.2" |
November | 27°F | 46°F | 36°F | 2.7" |
December | 17°F | 33°F | 25°F | 3.6" |
Index | Chelsea | Vermont | National |
Air quality index | 34 | 36 | 42 |
Pollution index | 1,278,430 | 1,478,772 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 328 |
Days with moderate air quality | 37 |
Days w/ poor A.Q. for sensitive groups | |
Days with unhealthy air quality |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.010% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
East Barre, VT | 807 | 34 | 32.0% |
South Barre, VT | 1,110 | 34 | 32.0% |
South Royalton, VT | 609 | 34 | 32.0% |
Graniteville, VT | 907 | 34 | 32.0% |
Websterville, VT | 380 | 34 | 32.0% |
Chelsea, VT | 463 | 34 | 32.0% |
City | Population | Air Quality Index | National Avg. |
Bellefonte, AR | 463 | 36 | 28.0% |
Calhan, CO | 463 | 45 | 10.0% |
Yampa, CO | 463 | 47 | 6.0% |
Lostant, IL | 463 | 0 | 100.0% |
Alta Vista, KS | 463 | 32 | 36.0% |
Chelsea, VT | 463 | 34 | 32.0% |