| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 6°F | 25°F | 15°F | 1.9" |
| February | 11°F | 30°F | 20°F | 0.6" |
| March | 22°F | 44°F | 32°F | 3.2" |
| April | 34°F | 57°F | 44°F | 5.0" |
| May | 45°F | 72°F | 58°F | 3.2" |
| June | 56°F | 81°F | 68°F | 5.3" |
| July | 59°F | 85°F | 71°F | 7.2" |
| August | 57°F | 82°F | 69°F | 6.8" |
| September | 47°F | 74°F | 59°F | 3.5" |
| October | 37°F | 61°F | 48°F | 4.7" |
| November | 27°F | 47°F | 36°F | 2.5" |
| December | 12°F | 30°F | 20°F | 1.3" |
| Index | Berlin | Wisconsin | National |
| Air quality index | 36 | 69 | 42 |
| Pollution index | 1,324,900 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 202 |
| Days with good air quality | 195 |
| Days with moderate air quality | 7 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Rosendale, WI | 906 | 36 | 28.0% |
| Redgranite, WI | 2,129 | 36 | 28.0% |
| Eureka, WI | 410 | 36 | 28.0% |
| Waukau, WI | 235 | 36 | 28.0% |
| Lohrville, WI | 400 | 36 | 28.0% |
| Berlin, WI | 5,410 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Edgewater, CO | 5,410 | 58 | 16.0% |
| Zephyrhills West, FL | 5,409 | 36 | 28.0% |
| Terrell Hills, TX | 5,409 | 49 | 2.0% |
| Brush, CO | 5,408 | 45 | 10.0% |
| Emporia, VA | 5,408 | 36 | 28.0% |
| Berlin, WI | 5,410 | 36 | 28.0% |
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