| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 21°F | 34°F | 27°F | 2.1" |
| February | 20°F | 33°F | 27°F | 1.6" |
| March | 27°F | 41°F | 33°F | 2.3" |
| April | 38°F | 54°F | 44°F | 2.9" |
| May | 47°F | 64°F | 54°F | 2.1" |
| June | 59°F | 75°F | 65°F | 3.4" |
| July | 64°F | 79°F | 71°F | 2.6" |
| August | 65°F | 79°F | 71°F | 2.4" |
| September | 59°F | 74°F | 66°F | 2.2" |
| October | 49°F | 62°F | 55°F | 2.4" |
| November | 38°F | 50°F | 43°F | 1.7" |
| December | 28°F | 39°F | 33°F | 2.2" |
| Index | Youngstown | 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. |
| Niagara Falls, NY | 47,978 | 39 | 22.0% |
| Wilson, NY | 1,309 | 39 | 22.0% |
| Sanborn, NY | 1,157 | 39 | 22.0% |
| North Tonawanda, NY | 30,338 | 39 | 22.0% |
| Lewiston, NY | 2,582 | 39 | 22.0% |
| Youngstown, NY | 1,687 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Itta Bena, MS | 1,687 | 43 | 14.0% |
| Inkerman, PA | 1,687 | 38 | 24.0% |
| Cedarville, AR | 1,688 | 36 | 28.0% |
| Bernice, LA | 1,686 | 35 | 30.0% |
| Monson Center, MA | 1,688 | 40 | 20.0% |
| Youngstown, NY | 1,687 | 39 | 22.0% |
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