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| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 40°F | 32°F | 4.1" |
| February | 19°F | 38°F | 28°F | 2.9" |
| March | 29°F | 49°F | 39°F | 4.6" |
| April | 40°F | 63°F | 51°F | 6.6" |
| May | 47°F | 74°F | 61°F | 2.5" |
| June | 61°F | 84°F | 72°F | 9.0" |
| July | 64°F | 84°F | 74°F | 11.6" |
| August | 65°F | 84°F | 74°F | 4.1" |
| September | 57°F | 81°F | 69°F | 2.3" |
| October | 50°F | 69°F | 58°F | 8.8" |
| November | 34°F | 55°F | 44°F | 3.7" |
| December | 25°F | 40°F | 33°F | 5.2" |
| Index | Denver | Pennsylvania | National |
| Air quality index | 42 | 45 | 42 |
| Pollution index | 11,091,200 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 279 |
| Days with moderate air quality | 80 |
| Days w/ poor A.Q. for sensitive groups | 5 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.310% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| Hebron, PA | 1,079 | 42 | 16.0% |
| Myerstown, PA | 3,217 | 42 | 16.0% |
| Sand Hill, PA | 2,653 | 42 | 16.0% |
| Alleghenyville, PA | 1,013 | 42 | 16.0% |
| Grill, PA | 1,793 | 42 | 16.0% |
| Denver, PA | 3,847 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Avenue B and C, AZ | 3,847 | 45 | 10.0% |
| Wellsville, UT | 3,847 | 44 | 12.0% |
| Clearview, WA | 3,847 | 45 | 10.0% |
| Weston Lakes, TX | 3,846 | 52 | 4.0% |
| Cedarville, OH | 3,848 | 45 | 10.0% |
| Denver, PA | 3,847 | 42 | 16.0% |
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