| 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 | Fort Covington Hamlet | New York | National |
| Air quality index | 0 | 43 | 42 |
| Pollution index | 1,123,830 | 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 | 0.002% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Malone, NY | 5,771 | 0 | 100.0% |
| Winthrop, NY | 179 | 0 | 100.0% |
| Brasher Falls, NY | 617 | 0 | 100.0% |
| Brushton, NY | 528 | 0 | 100.0% |
| Fort Covington Hamlet, NY | 1,369 | 0 | 100.0% |
| City | Population | Air Quality Index | National Avg. |
| Mendon, UT | 1,369 | 44 | 12.0% |
| Diamond Ridge, AK | 1,368 | 31 | 38.0% |
| Byers, CO | 1,370 | 58 | 16.0% |
| Woodbine, GA | 1,370 | 36 | 28.0% |
| Walford, IA | 1,368 | 39 | 22.0% |
| Fort Covington Hamlet, NY | 1,369 | 0 | 100.0% |