| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 33°F | 26°F | 2.7" |
| February | 18°F | 33°F | 25°F | 2.4" |
| March | 26°F | 44°F | 34°F | 2.5" |
| April | 36°F | 58°F | 46°F | 3.7" |
| May | 47°F | 70°F | 58°F | 2.9" |
| June | 58°F | 79°F | 68°F | 3.8" |
| July | 62°F | 83°F | 72°F | 4.1" |
| August | 61°F | 81°F | 71°F | 3.2" |
| September | 54°F | 75°F | 64°F | 3.5" |
| October | 44°F | 62°F | 52°F | 4.2" |
| November | 33°F | 50°F | 41°F | 2.7" |
| December | 25°F | 38°F | 32°F | 3.1" |
| Index | Tonawanda | New York | National |
| Air quality index | 39 | 43 | 42 |
| Pollution index | 1,117,680 | 6,179,275 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 308 |
| Days with moderate air quality | 57 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.002% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Rapids, NY | 706 | 39 | 22.0% |
| North Tonawanda, NY | 31,006 | 39 | 22.0% |
| Clarence, NY | 2,283 | 39 | 22.0% |
| Grandyle Village, NY | 5,241 | 39 | 22.0% |
| Lancaster, NY | 10,349 | 39 | 22.0% |
| Tonawanda, NY | 15,243 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Mount Vernon, IL | 15,250 | 43 | 14.0% |
| Hobe Sound, FL | 15,254 | 36 | 28.0% |
| El Sobrante, CA | 15,231 | 89 | 78.0% |
| Susanville, CA | 15,230 | 46 | 8.0% |
| Mercier, QC | 15,257 | n/a | |
| Tonawanda, NY | 15,243 | 39 | 22.0% |