Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 22°F | 38°F | 30°F | 3.2" |
February | 23°F | 39°F | 30°F | 2.2" |
March | 32°F | 52°F | 41°F | 3.4" |
April | 43°F | 65°F | 53°F | 3.4" |
May | 52°F | 74°F | 62°F | 4.2" |
June | 60°F | 81°F | 70°F | 5.1" |
July | 64°F | 84°F | 73°F | 5.1" |
August | 63°F | 82°F | 72°F | 4.1" |
September | 56°F | 77°F | 66°F | 3.1" |
October | 46°F | 65°F | 54°F | 3.8" |
November | 35°F | 54°F | 44°F | 2.8" |
December | 28°F | 43°F | 35°F | 3.7" |
Index | West Mifflin | Pennsylvania | National |
Air quality index | 56 | 45 | 42 |
Pollution index | 889,808 | 4,584,805 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 129 |
Days with moderate air quality | 220 |
Days w/ poor A.Q. for sensitive groups | 12 |
Days with unhealthy air quality | 4 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.030% |
Mercury | 0.030% |
City | Population | Air Quality Index | National Avg. |
Hunker, PA | 266 | 56 | 12.0% |
West Newton, PA | 2,581 | 56 | 12.0% |
Arnold, PA | 4,852 | 56 | 12.0% |
Sewickley Hills, PA | 743 | 56 | 12.0% |
Elizabeth, PA | 1,418 | 56 | 12.0% |
West Mifflin, PA | 19,742 | 56 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Niskayuna, NY | 19,741 | 37 | 26.0% |
Shafter, CA | 19,743 | 67 | 34.0% |
Sherwood, OR | 19,745 | 38 | 24.0% |
Mont-Saint-Hilaire, QC | 19,745 | n/a | |
Blythe, CA | 19,747 | 13 | 74.0% |
West Mifflin, PA | 19,742 | 56 | 12.0% |