| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 8°F | 28°F | 18°F | 2.6" |
| February | 9°F | 28°F | 18°F | 2.5" |
| March | 18°F | 38°F | 27°F | 2.3" |
| April | 33°F | 57°F | 44°F | 3.2" |
| May | 45°F | 70°F | 57°F | 3.1" |
| June | 55°F | 78°F | 66°F | 4.8" |
| July | 59°F | 81°F | 70°F | 4.1" |
| August | 56°F | 80°F | 68°F | 3.3" |
| September | 49°F | 75°F | 61°F | 3.3" |
| October | 39°F | 60°F | 48°F | 4.6" |
| November | 28°F | 47°F | 37°F | 2.6" |
| December | 16°F | 32°F | 24°F | 3.6" |
| Index | Chateaugay | New York | National |
| Air quality index | 0 | 43 | 42 |
| Pollution index | 3,508,050 | 6,179,275 | 2,726,193 |
| Measurement | Total |
| Days measured | 356 |
| Days with good air quality | 356 |
| Days with moderate air quality | 0 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.005% |
| Lead | 0.010% |
| Mercury | 0.003% |
| City | Population | Air Quality Index | National Avg. |
| Malone, NY | 5,644 | 0 | 100.0% |
| Lyon Mountain, NY | 287 | 0 | 100.0% |
| Burke, NY | 238 | 0 | 100.0% |
| Chateaugay, NY | 896 | 0 | 100.0% |
| City | Population | Air Quality Index | National Avg. |
| Courtland, AL | 896 | 41 | 18.0% |
| Clay City, IL | 896 | 40 | 20.0% |
| Buras, LA | 896 | 45 | 10.0% |
| Cankton, LA | 896 | 41 | 18.0% |
| Cass Lake, MN | 896 | 29 | 42.0% |
| Chateaugay, NY | 896 | 0 | 100.0% |
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