Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 15°F | 32°F | 23°F | 1.0" |
February | 17°F | 35°F | 25°F | 1.1" |
March | 30°F | 51°F | 39°F | 2.4" |
April | 41°F | 64°F | 52°F | 4.8" |
May | 51°F | 74°F | 62°F | 4.6" |
June | 62°F | 84°F | 73°F | 6.1" |
July | 66°F | 86°F | 75°F | 4.7" |
August | 64°F | 84°F | 73°F | 4.5" |
September | 55°F | 78°F | 66°F | 3.3" |
October | 43°F | 65°F | 53°F | 3.3" |
November | 31°F | 51°F | 40°F | 1.9" |
December | 19°F | 35°F | 27°F | 1.9" |
Index | North Liberty | Iowa | National |
Air quality index | 35 | 39 | 42 |
Pollution index | 5,075,380 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 278 |
Days with moderate air quality | 86 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.070% |
Benzene | 0.050% |
Carbon Tetrachloride | 2.000% |
Lead | 0.040% |
Mercury | 0.100% |
City | Population | Air Quality Index | National Avg. |
Tiffin, IA | 3,779 | 35 | 30.0% |
Solon, IA | 2,690 | 35 | 30.0% |
Iowa City, IA | 75,849 | 35 | 30.0% |
University Heights, IA | 1,332 | 35 | 30.0% |
Coralville, IA | 21,630 | 35 | 30.0% |
North Liberty, IA | 19,159 | 35 | 30.0% |
City | Population | Air Quality Index | National Avg. |
Frankfort, IL | 19,166 | 55 | 10.0% |
Nanuet, NY | 19,148 | 51 | 2.0% |
Hermosa Beach, CA | 19,147 | 72 | 44.0% |
Pinecrest, FL | 19,183 | 41 | 18.0% |
Carlisle, PA | 19,188 | 44 | 12.0% |
North Liberty, IA | 19,159 | 35 | 30.0% |