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 | Grindstone | Pennsylvania | National |
Air quality index | 36 | 45 | 42 |
Pollution index | 889,808 | 4,584,805 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 337 |
Days with moderate air quality | 27 |
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 | 0.002% |
Lead | 0.030% |
Mercury | 0.030% |
City | Population | Air Quality Index | National Avg. |
Dry Tavern, PA | 551 | 36 | 28.0% |
Masontown, PA | 3,314 | 36 | 28.0% |
Brownsville, PA | 2,313 | 36 | 28.0% |
Connellsville, PA | 7,414 | 36 | 28.0% |
Fredericktown, PA | 200 | 36 | 28.0% |
Grindstone, PA | 818 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Maricopa Colony, AZ | 818 | 74 | 48.0% |
Alto, CA | 818 | 40 | 20.0% |
Enterprise, KS | 818 | 32 | 36.0% |
Village of Clarkston, MI | 818 | 38 | 24.0% |
Woodridge, NY | 818 | 36 | 28.0% |
Grindstone, PA | 818 | 36 | 28.0% |