Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 21°F | 41°F | 31°F | 2.3" |
February | 21°F | 42°F | 31°F | 2.6" |
March | 30°F | 54°F | 41°F | 3.0" |
April | 40°F | 66°F | 53°F | 3.5" |
May | 50°F | 75°F | 62°F | 4.2" |
June | 60°F | 82°F | 71°F | 3.7" |
July | 63°F | 86°F | 75°F | 4.6" |
August | 61°F | 84°F | 72°F | 4.7" |
September | 54°F | 78°F | 65°F | 5.1" |
October | 44°F | 67°F | 55°F | 4.8" |
November | 33°F | 56°F | 44°F | 2.7" |
December | 27°F | 46°F | 36°F | 3.3" |
Index | McSherrystown | Pennsylvania | National |
Air quality index | 42 | 45 | 42 |
Pollution index | 12,532,500 | 4,584,805 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 288 |
Days with moderate air quality | 77 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.180% |
Benzene | 0.090% |
Carbon Tetrachloride | 0.020% |
Lead | 0.130% |
Mercury | 0.270% |
City | Population | Air Quality Index | National Avg. |
Seven Valleys, PA | 626 | 41 | 18.0% |
East Berlin, PA | 1,570 | 41 | 18.0% |
West York, PA | 4,636 | 41 | 18.0% |
Jefferson borough (Greene County), PA | 252 | 41 | 18.0% |
Spring Grove, PA | 2,169 | 41 | 18.0% |
McSherrystown, PA | 3,076 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Silt, CO | 3,076 | 44 | 12.0% |
Kaunakakai, HI | 3,076 | 15 | 70.0% |
Nashville, IL | 3,076 | 43 | 14.0% |
North Shore, VA | 3,075 | 38 | 24.0% |
Hampton, SC | 3,077 | 29 | 42.0% |
McSherrystown, PA | 3,076 | 42 | 16.0% |