Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 20°F | 34°F | 26°F | 2.9" |
February | 27°F | 47°F | 36°F | 2.2" |
March | 35°F | 56°F | 44°F | 8.3" |
April | 45°F | 65°F | 54°F | 4.8" |
May | 51°F | 73°F | 61°F | 6.4" |
June | 63°F | 87°F | 75°F | 4.8" |
July | 67°F | 88°F | 77°F | 8.0" |
August | 62°F | 84°F | 72°F | 5.8" |
September | 58°F | 81°F | 69°F | 9.2" |
October | 46°F | 69°F | 56°F | 8.5" |
November | 35°F | 56°F | 45°F | 4.1" |
December | 21°F | 36°F | 28°F | 2.6" |
Index | Afton | Iowa | National |
Air quality index | 39 | 39 | 42 |
Pollution index | 376,148 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 306 |
Days with moderate air quality | 59 |
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 | 0.001% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Ellston, IA | 37 | 39 | 22.0% |
Tingley, IA | 105 | 39 | 22.0% |
Cromwell, IA | 72 | 39 | 22.0% |
Thayer, IA | 24 | 39 | 22.0% |
Grand River, IA | 193 | 39 | 22.0% |
Afton, IA | 901 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Raleigh, FL | 901 | 35 | 30.0% |
Mahinahina, HI | 901 | 15 | 70.0% |
Waterproof, LA | 901 | 34 | 32.0% |
Cecilton, MD | 901 | 42 | 16.0% |
Greenevers, NC | 901 | 42 | 16.0% |
Afton, IA | 901 | 39 | 22.0% |