| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 34°F | 26°F | 2.6" |
| February | 19°F | 34°F | 26°F | 2.1" |
| March | 28°F | 46°F | 36°F | 2.9" |
| April | 39°F | 60°F | 48°F | 3.3" |
| May | 48°F | 68°F | 57°F | 4.5" |
| June | 57°F | 75°F | 66°F | 5.2" |
| July | 61°F | 79°F | 69°F | 4.5" |
| August | 59°F | 77°F | 68°F | 4.4" |
| September | 53°F | 71°F | 62°F | 4.1" |
| October | 43°F | 60°F | 51°F | 3.9" |
| November | 32°F | 49°F | 40°F | 2.6" |
| December | 24°F | 38°F | 31°F | 3.4" |
| Index | Berlin | Pennsylvania | National |
| Air quality index | 36 | 45 | 42 |
| Pollution index | 2,970,510 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 359 |
| Days with good air quality | 340 |
| Days with moderate air quality | 19 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.650% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Fairhope, PA | 1,160 | 36 | 28.0% |
| Salisbury, PA | 702 | 36 | 28.0% |
| Friedens, PA | 1,273 | 36 | 28.0% |
| Rockwood, PA | 802 | 36 | 28.0% |
| Garrett, PA | 430 | 36 | 28.0% |
| Berlin, PA | 2,338 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Calico Rock, AR | 2,338 | 36 | 28.0% |
| Landisville, PA | 2,338 | 45 | 10.0% |
| Saint-Éphrem-de-Beauce, QC | 2,337 | n/a | |
| Honokaa, HI | 2,339 | 16 | 68.0% |
| Lamoni, IA | 2,339 | 39 | 22.0% |
| Berlin, PA | 2,338 | 36 | 28.0% |
Here are the best places to live in Pennsylvania
Most Dangerous States In The US
See the best places to live in Berlin
Check out the 10 most dangerous cities in Pennsylvania