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				| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation | 
| January | 12°F | 34°F | 22°F | 4.8" | 
| February | 9°F | 34°F | 21°F | 4.5" | 
| March | 19°F | 43°F | 30°F | 8.0" | 
| April | 33°F | 55°F | 43°F | 16.6" | 
| May | 42°F | 65°F | 52°F | 9.1" | 
| June | 54°F | 79°F | 65°F | 6.2" | 
| July | 58°F | 82°F | 68°F | 8.2" | 
| August | 56°F | 84°F | 68°F | 14.0" | 
| September | 49°F | 76°F | 62°F | 6.3" | 
| October | 42°F | 62°F | 51°F | 9.5" | 
| November | 29°F | 50°F | 38°F | 8.6" | 
| December | 14°F | 36°F | 25°F | 5.2" | 
| Index | Lake Arrowhead | Maine | National | 
| Air quality index | 40 | 33 | 42 | 
| Pollution index | 91,790 | 3,417,521 | 2,726,193 | 
| Measurement | Total | 
| Days measured | 365 | 
| Days with good air quality | 308 | 
| Days with moderate air quality | 56 | 
| Days w/ poor A.Q. for sensitive groups | 1 | 
| Days with unhealthy air quality | 0 | 
| Pollutant | Total | 
| Arsenic | 0.000% | 
| Benzene | 0.002% | 
| Carbon Tetrachloride | 0.000% | 
| Lead | 0.001% | 
| Mercury | 0.000% | 
| City | Population | Air Quality Index | National Avg. | 
| Milton, NH | 537 | 31 | 38.0% | 
| Milton Mills, NH | 216 | 31 | 38.0% | 
| Sanbornville, NH | 778 | 31 | 38.0% | 
| Union, NH | 242 | 31 | 38.0% | 
| Biddeford, ME | 21,502 | 40 | 20.0% | 
| Lake Arrowhead, ME | 2,727 | 40 | 20.0% | 
| City | Population | Air Quality Index | National Avg. | 
| Riverdale, CA | 2,727 | 56 | 12.0% | 
| Marlborough, MO | 2,727 | 54 | 8.0% | 
| Stigler, OK | 2,727 | 5 | 90.0% | 
| North Rock Springs, WY | 2,727 | 46 | 8.0% | 
| Stanstead, QC | 2,727 | n/a | |
| Lake Arrowhead, ME | 2,727 | 40 | 20.0% |