Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 16°F | 34°F | 24°F | 1.9" |
February | 19°F | 39°F | 28°F | 1.5" |
March | 32°F | 54°F | 41°F | 3.6" |
April | 42°F | 65°F | 52°F | 5.5" |
May | 52°F | 75°F | 62°F | 7.8" |
June | 63°F | 84°F | 73°F | 10.5" |
July | 67°F | 86°F | 76°F | 5.6" |
August | 65°F | 84°F | 74°F | 6.6" |
September | 57°F | 79°F | 66°F | 6.8" |
October | 44°F | 66°F | 54°F | 5.7" |
November | 32°F | 52°F | 41°F | 4.0" |
December | 20°F | 37°F | 27°F | 4.8" |
Index | Fort Calhoun | Nebraska | National |
Air quality index | 40 | 86 | 42 |
Pollution index | 4,349,930 | 590,627 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 283 |
Days with moderate air quality | 82 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.210% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.004% |
Lead | 0.100% |
Mercury | 0.160% |
City | Population | Air Quality Index | National Avg. |
Omaha, NE | 479,529 | 40 | 20.0% |
Missouri Valley, IA | 2,610 | 40 | 20.0% |
King Lake, NE | 39 | 40 | 20.0% |
Washington, NE | 124 | 40 | 20.0% |
Waterloo, NE | 1,066 | 40 | 20.0% |
Fort Calhoun, NE | 983 | 40 | 20.0% |
City | Population | Air Quality Index | National Avg. |
Dunkerton, IA | 983 | 39 | 22.0% |
Mechanicsville, IA | 983 | 39 | 22.0% |
Summitville, IN | 983 | 35 | 30.0% |
Millington, MI | 983 | 38 | 24.0% |
Vaiden, MS | 983 | 33 | 34.0% |
Fort Calhoun, NE | 983 | 40 | 20.0% |