Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 12°F | 32°F | 22°F | 3.2" |
February | 11°F | 34°F | 22°F | 3.6" |
March | 18°F | 40°F | 29°F | 3.4" |
April | 33°F | 58°F | 45°F | 3.2" |
May | 45°F | 72°F | 58°F | 5.3" |
June | 54°F | 78°F | 66°F | 6.6" |
July | 59°F | 82°F | 70°F | 6.2" |
August | 57°F | 81°F | 68°F | 4.3" |
September | 50°F | 76°F | 62°F | 4.8" |
October | 41°F | 63°F | 52°F | 5.0" |
November | 29°F | 49°F | 39°F | 2.7" |
December | 21°F | 37°F | 29°F | 3.4" |
Index | Vergennes | Vermont | National |
Air quality index | 37 | 36 | 42 |
Pollution index | 3,716,800 | 1,478,772 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 335 |
Days with moderate air quality | 30 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.002% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.002% |
Lead | 0.030% |
Mercury | 0.004% |
City | Population | Air Quality Index | National Avg. |
East Middlebury, VT | 381 | 36 | 28.0% |
Middlebury, VT | 6,929 | 36 | 28.0% |
Witherbee, NY | 207 | 37 | 26.0% |
Shelburne, VT | 6,008 | 37 | 26.0% |
Westport, NY | 302 | 37 | 26.0% |
Vergennes, VT | 2,607 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Summerset, SD | 2,607 | 44 | 12.0% |
Williams Bay, WI | 2,607 | 37 | 26.0% |
South Oroville, CA | 2,606 | 46 | 8.0% |
Lincoln, ME | 2,606 | 31 | 38.0% |
Saint-Gabriel-de-Brandon, QC | 2,606 | n/a | |
Vergennes, VT | 2,607 | 37 | 26.0% |