Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 18°F | 33°F | 25°F | 2.8" |
February | 18°F | 34°F | 25°F | 2.2" |
March | 27°F | 46°F | 35°F | 3.3" |
April | 38°F | 61°F | 48°F | 3.6" |
May | 47°F | 70°F | 58°F | 4.0" |
June | 56°F | 77°F | 66°F | 5.4" |
July | 59°F | 81°F | 70°F | 4.1" |
August | 58°F | 79°F | 68°F | 4.3" |
September | 52°F | 73°F | 62°F | 3.5" |
October | 42°F | 61°F | 51°F | 4.2" |
November | 32°F | 50°F | 40°F | 3.2" |
December | 24°F | 38°F | 30°F | 3.6" |
Index | Crown | Pennsylvania | National |
Air quality index | 9 | 45 | 42 |
Pollution index | 601,986 | 4,584,805 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 357 |
Days with moderate air quality | 6 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Vowinckel, PA | 68 | 9 | 82.0% |
Marienville, PA | 3,538 | 9 | 82.0% |
Tionesta, PA | 516 | 9 | 82.0% |
Tylersburg, PA | 99 | 9 | 82.0% |
Knox, PA | 1,008 | 33 | 34.0% |
Crown, PA | 229 | 9 | 82.0% |
City | Population | Air Quality Index | National Avg. |
Arctic Village, AK | 229 | 38 | 24.0% |
Gateway, AR | 229 | 44 | 12.0% |
Sunset, AR | 229 | 45 | 10.0% |
Wheeler, IN | 229 | 37 | 26.0% |
Applegate, MI | 229 | 38 | 24.0% |
Crown, PA | 229 | 9 | 82.0% |