| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 12°F | 32°F | 22°F | 2.6" |
| February | 11°F | 32°F | 22°F | 2.3" |
| March | 21°F | 42°F | 32°F | 2.0" |
| April | 34°F | 57°F | 45°F | 3.3" |
| May | 44°F | 69°F | 57°F | 3.1" |
| June | 54°F | 76°F | 65°F | 4.3" |
| July | 59°F | 81°F | 70°F | 3.2" |
| August | 58°F | 80°F | 69°F | 3.9" |
| September | 50°F | 73°F | 62°F | 3.5" |
| October | 41°F | 61°F | 51°F | 5.5" |
| November | 30°F | 50°F | 40°F | 3.2" |
| December | 20°F | 37°F | 29°F | 3.4" |
| Index | Brownville | New York | National |
| Air quality index | 35 | 43 | 42 |
| Pollution index | 230,538 | 6,179,275 | 2,726,193 |
| Measurement | Total |
| Days measured | 205 |
| Days with good air quality | 198 |
| Days with moderate air quality | 7 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Philadelphia, NY | 1,196 | 35 | 30.0% |
| Henderson, NY | 236 | 35 | 30.0% |
| Black River, NY | 1,419 | 35 | 30.0% |
| Felts Mills, NY | 451 | 35 | 30.0% |
| Rodman, NY | 142 | 35 | 30.0% |
| Brownville, NY | 874 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Plandome Heights, NY | 874 | 51 | 2.0% |
| Lawrence, PA | 874 | 56 | 12.0% |
| New Bethlehem, PA | 874 | 38 | 24.0% |
| Balsam Lake, WI | 874 | 46 | 8.0% |
| Kasabonika Lake, ON | 874 | n/a | |
| Brownville, NY | 874 | 35 | 30.0% |
Here are the best places to live in New York
Check out the 10 safest cities in New York
Most Dangerous Cities In The US
Check out the 10 most dangerous cities in New York