Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 17°F | 34°F | 25°F | 0.7" |
February | 18°F | 36°F | 26°F | 2.1" |
March | 33°F | 53°F | 41°F | 4.1" |
April | 43°F | 66°F | 53°F | 4.8" |
May | 53°F | 75°F | 63°F | 6.2" |
June | 63°F | 84°F | 73°F | 5.9" |
July | 65°F | 86°F | 75°F | 5.6" |
August | 63°F | 84°F | 73°F | 2.0" |
September | 55°F | 79°F | 65°F | 4.1" |
October | 44°F | 66°F | 54°F | 6.1" |
November | 33°F | 51°F | 41°F | 3.3" |
December | 22°F | 38°F | 30°F | 3.1" |
Index | Hillsboro | Iowa | National |
Air quality index | 29 | 39 | 42 |
Pollution index | 464,333 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 120 |
Days with good air quality | 101 |
Days with moderate air quality | 19 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.320% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Keosauqua, IA | 915 | 29 | 42.0% |
Farmington, IA | 644 | 29 | 42.0% |
St. Paul, IA | 65 | 29 | 42.0% |
Fairfield, IA | 10,327 | 29 | 42.0% |
Westwood, IA | 71 | 29 | 42.0% |
Hillsboro, IA | 187 | 29 | 42.0% |
City | Population | Air Quality Index | National Avg. |
Fox, AK | 187 | 38 | 24.0% |
Morristown, AZ | 187 | 74 | 48.0% |
Coffee Creek, CA | 187 | 42 | 16.0% |
Markleeville, CA | 187 | 13 | 74.0% |
Henlopen Acres, DE | 187 | 36 | 28.0% |
Hillsboro, IA | 187 | 29 | 42.0% |