Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 17°F | 33°F | 24°F | 2.8" |
February | 20°F | 37°F | 27°F | 3.3" |
March | 33°F | 55°F | 43°F | 3.3" |
April | 42°F | 63°F | 51°F | 6.4" |
May | 53°F | 74°F | 63°F | 7.9" |
June | 63°F | 82°F | 72°F | 9.5" |
July | 66°F | 87°F | 76°F | 3.7" |
August | 67°F | 87°F | 76°F | 10.2" |
September | 57°F | 79°F | 67°F | 7.1" |
October | 46°F | 66°F | 55°F | 5.5" |
November | 32°F | 52°F | 41°F | 3.2" |
December | 18°F | 33°F | 25°F | 3.4" |
Index | Shannon City | Iowa | National |
Air quality index | 39 | 39 | 50 |
Pollution index | 1,369,890 | 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 | 0.002% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.000% |
Mercury | 0.000% |
City, State | Population | Air Quality Index | National Avg. |
Beaconsfield, IA | 38 | 39 | 22% |
Mount Ayr, IA | 1,958 | 39 | 22% |
Tingley, IA | 177 | 39 | 22% |
Cromwell, IA | 102 | 39 | 22% |
Diagonal, IA | 319 | 39 | 22% |
Shannon City, IA | 54 | 39 | 22% |
City, State | Population | Air Quality Index | National Avg. |
Owasa, IA | 54 | 37 | 26% |
Neahkahnie, OR | 54 | 18 | 64% |
Osterdock, IA | 54 | 29 | 42% |
Oneida, KS | 54 | 32 | 36% |
Big Falls, WI | 54 | 34 | 32% |
Shannon City, IA | 54 | 39 | 22% |