| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 9°F | 29°F | 19°F | 1.7" |
| February | 10°F | 30°F | 20°F | 1.6" |
| March | 19°F | 40°F | 29°F | 1.7" |
| April | 32°F | 55°F | 43°F | 2.8" |
| May | 43°F | 69°F | 56°F | 3.8" |
| June | 52°F | 76°F | 63°F | 5.0" |
| July | 57°F | 80°F | 68°F | 5.0" |
| August | 55°F | 78°F | 66°F | 3.8" |
| September | 48°F | 73°F | 59°F | 2.7" |
| October | 38°F | 59°F | 48°F | 4.0" |
| November | 27°F | 46°F | 36°F | 1.9" |
| December | 17°F | 34°F | 25°F | 2.9" |
| Index | Morrisville | Vermont | National |
| Air quality index | 37 | 36 | 42 |
| Pollution index | 1,278,430 | 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 | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Johnson, VT | 1,627 | 37 | 26.0% |
| Albany, VT | 176 | 37 | 26.0% |
| Marshfield, VT | 367 | 37 | 26.0% |
| Stowe, VT | 600 | 37 | 26.0% |
| Cabot, VT | 228 | 37 | 26.0% |
| Morrisville, VT | 2,017 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Fort Denaud, FL | 2,017 | 36 | 28.0% |
| Pearson, GA | 2,017 | 26 | 48.0% |
| Ortonville, MN | 2,017 | 25 | 50.0% |
| St. Bonifacius, MN | 2,017 | 46 | 8.0% |
| Bottineau, ND | 2,017 | 36 | 28.0% |
| Morrisville, VT | 2,017 | 37 | 26.0% |
Here are the best places to live in Vermont
Check out the 10 safest cities in Vermont
Check out the 10 most dangerous cities in Vermont
Safest States In The US