| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 30°F | 22°F | 1.2" |
| February | 16°F | 33°F | 23°F | 3.5" |
| March | 30°F | 48°F | 38°F | 4.0" |
| April | 40°F | 62°F | 50°F | 8.9" |
| May | 51°F | 73°F | 61°F | 8.7" |
| June | 62°F | 82°F | 71°F | 5.2" |
| July | 65°F | 84°F | 74°F | 6.6" |
| August | 63°F | 82°F | 72°F | 8.4" |
| September | 55°F | 77°F | 65°F | 5.0" |
| October | 43°F | 63°F | 52°F | 4.4" |
| November | 32°F | 49°F | 39°F | 7.4" |
| December | 19°F | 34°F | 26°F | 1.7" |
| Index | Ogden | Iowa | National |
| Air quality index | 37 | 39 | 42 |
| Pollution index | 517,691 | 1,154,535 | 2,726,193 |
| Measurement | Total |
| Days measured | 214 |
| Days with good air quality | 210 |
| Days with moderate air quality | 4 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| 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. |
| Pilot Mound, IA | 161 | 37 | 26.0% |
| Fraser, IA | 109 | 37 | 26.0% |
| Berkley, IA | 9 | 37 | 26.0% |
| Grand Junction, IA | 829 | 37 | 26.0% |
| Rippey, IA | 211 | 37 | 26.0% |
| Ogden, IA | 1,767 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| West Jefferson, NC | 1,767 | 26 | 48.0% |
| San Felipe Pueblo, NM | 1,767 | 53 | 6.0% |
| Les Escoumins, QC | 1,767 | n/a | |
| Inglis, FL | 1,768 | 30 | 40.0% |
| Campbell, MO | 1,768 | 26 | 48.0% |
| Ogden, IA | 1,767 | 37 | 26.0% |
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