Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 41°F | 33°F | 5.6" |
February | 21°F | 38°F | 29°F | 4.6" |
March | 29°F | 50°F | 39°F | 6.9" |
April | 40°F | 63°F | 51°F | 11.6" |
May | 48°F | 73°F | 61°F | 2.5" |
June | 61°F | 83°F | 72°F | 4.5" |
July | 65°F | 86°F | 75°F | 7.2" |
August | 65°F | 86°F | 75°F | 6.7" |
September | 56°F | 82°F | 69°F | 1.6" |
October | 49°F | 70°F | 59°F | 9.8" |
November | 35°F | 55°F | 44°F | 4.7" |
December | 26°F | 41°F | 33°F | 5.6" |
Index | Harleysville | Pennsylvania | National |
Air quality index | 42 | 45 | 42 |
Pollution index | 8,206,310 | 4,584,805 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 275 |
Days with moderate air quality | 86 |
Days w/ poor A.Q. for sensitive groups | 4 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.260% |
Benzene | 0.060% |
Carbon Tetrachloride | 0.020% |
Lead | 0.160% |
Mercury | 1.120% |
City | Population | Air Quality Index | National Avg. |
Plumsteadville, PA | 2,286 | 41 | 18.0% |
Doylestown, PA | 8,282 | 41 | 18.0% |
Souderton, PA | 7,019 | 42 | 16.0% |
Bally, PA | 1,300 | 42 | 16.0% |
Greenfields, PA | 1,130 | 42 | 16.0% |
Harleysville, PA | 8,975 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Cambridge, MN | 8,975 | 46 | 8.0% |
Hernando, FL | 8,977 | 30 | 40.0% |
Mechanicsburg, PA | 8,977 | 44 | 12.0% |
Contrecoeur, QC | 8,977 | n/a | |
Craig, CO | 8,978 | 49 | 2.0% |
Harleysville, PA | 8,975 | 42 | 16.0% |