| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 20°F | 37°F | 28°F | 5.5" |
| February | 16°F | 32°F | 23°F | 2.8" |
| March | 24°F | 44°F | 34°F | 4.3" |
| April | 34°F | 60°F | 46°F | 4.5" |
| May | 43°F | 72°F | 57°F | 5.1" |
| June | 55°F | 80°F | 67°F | 4.6" |
| July | 57°F | 82°F | 69°F | 4.1" |
| August | 59°F | 82°F | 70°F | 6.5" |
| September | 51°F | 77°F | 63°F | 1.7" |
| October | 44°F | 65°F | 53°F | 5.0" |
| November | 30°F | 50°F | 39°F | 5.9" |
| December | 22°F | 34°F | 27°F | 4.0" |
| Index | Plymptonville | Pennsylvania | National |
| Air quality index | 33 | 45 | 42 |
| Pollution index | 2,854,150 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 359 |
| Days with good air quality | 357 |
| Days with moderate air quality | 2 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Clearfield, PA | 5,878 | 33 | 34.0% |
| Hyde, PA | 1,361 | 33 | 34.0% |
| Mahaffey, PA | 365 | 33 | 34.0% |
| Lumber City, PA | 283 | 33 | 34.0% |
| Treasure Lake, PA | 4,418 | 33 | 34.0% |
| Plymptonville, PA | 997 | 33 | 34.0% |
| City | Population | Air Quality Index | National Avg. |
| Boonville, CA | 997 | 33 | 34.0% |
| Jeffersonville, GA | 997 | 38 | 24.0% |
| Haliimaile, HI | 997 | 15 | 70.0% |
| Wheatland, IA | 997 | 46 | 8.0% |
| Alfred, ME | 997 | 40 | 20.0% |
| Plymptonville, PA | 997 | 33 | 34.0% |
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