| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 31°F | 23°F | 1.8" |
| February | 15°F | 32°F | 23°F | 2.0" |
| March | 23°F | 42°F | 32°F | 2.5" |
| April | 35°F | 56°F | 45°F | 2.8" |
| May | 46°F | 69°F | 57°F | 3.9" |
| June | 55°F | 75°F | 64°F | 4.7" |
| July | 59°F | 79°F | 69°F | 6.2" |
| August | 57°F | 77°F | 67°F | 5.1" |
| September | 51°F | 71°F | 60°F | 3.7" |
| October | 41°F | 59°F | 49°F | 4.5" |
| November | 31°F | 47°F | 38°F | 2.0" |
| December | 22°F | 36°F | 28°F | 2.6" |
| Index | Rutland | Vermont | National |
| Air quality index | 36 | 36 | 42 |
| Pollution index | 1,162,920 | 1,478,772 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 322 |
| Days with moderate air quality | 43 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.000% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Brandon, VT | 1,552 | 36 | 28.0% |
| Poultney, VT | 1,474 | 36 | 28.0% |
| Ludlow, VT | 646 | 36 | 28.0% |
| Castleton, VT | 1,141 | 36 | 28.0% |
| Wallingford, VT | 1,029 | 36 | 28.0% |
| Rutland, VT | 15,207 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Northview, MI | 15,209 | 38 | 24.0% |
| Front Royal, VA | 15,214 | 38 | 24.0% |
| Jamestown, ND | 15,216 | 33 | 34.0% |
| Lake Country, BC | 15,217 | n/a | |
| Elk Plain, WA | 15,192 | 30 | 40.0% |
| Rutland, VT | 15,207 | 36 | 28.0% |
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