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 | Grand River | Iowa | National |
Air quality index | 39 | 39 | 42 |
Pollution index | 648,829 | 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 | 0.002% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Thayer, IA | 24 | 39 | 22.0% |
Leon, IA | 1,883 | 39 | 22.0% |
Ellston, IA | 37 | 39 | 22.0% |
Lamoni, IA | 2,339 | 39 | 22.0% |
Arispe, IA | 103 | 39 | 22.0% |
Grand River, IA | 193 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Russian Mission, AK | 193 | 31 | 38.0% |
Rackerby, CA | 193 | 44 | 12.0% |
Oakford, IL | 193 | 40 | 20.0% |
Severy, KS | 193 | 22 | 56.0% |
Thornhill, KY | 193 | 49 | 2.0% |
Grand River, IA | 193 | 39 | 22.0% |