Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 13°F | 29°F | 20°F | 0.9" |
February | 18°F | 35°F | 25°F | 2.3" |
March | 31°F | 56°F | 41°F | 4.5" |
April | 40°F | 65°F | 51°F | 7.4" |
May | 53°F | 77°F | 64°F | 9.7" |
June | 63°F | 85°F | 73°F | 4.3" |
July | 65°F | 89°F | 77°F | 4.2" |
August | 64°F | 85°F | 74°F | 5.9" |
September | 54°F | 82°F | 67°F | 2.4" |
October | 42°F | 68°F | 54°F | 2.7" |
November | 27°F | 53°F | 39°F | 2.5" |
December | 12°F | 30°F | 21°F | 1.9" |
Index | Onawa | Iowa | National |
Air quality index | 35 | 39 | 42 |
Pollution index | 565,451 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 322 |
Days with moderate air quality | 42 |
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 | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Hornick, IA | 286 | 35 | 30.0% |
Macy, NE | 927 | 35 | 30.0% |
Blencoe, IA | 238 | 35 | 30.0% |
Rodney, IA | 65 | 35 | 30.0% |
Turin, IA | 148 | 35 | 30.0% |
Onawa, IA | 2,788 | 35 | 30.0% |
City | Population | Air Quality Index | National Avg. |
Lake Heritage, PA | 2,788 | 42 | 16.0% |
Sainte-Anne-de-Beaupré, QC | 2,788 | n/a | |
Saint-Chrysostome, QC | 2,788 | n/a | |
Bayview, CA | 2,787 | 27 | 46.0% |
Lake Helen, FL | 2,787 | 37 | 26.0% |
Onawa, IA | 2,788 | 35 | 30.0% |