| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 33°F | 24°F | 0.7" |
| February | 17°F | 36°F | 26°F | 1.1" |
| March | 31°F | 52°F | 40°F | 2.3" |
| April | 41°F | 65°F | 52°F | 4.7" |
| May | 51°F | 74°F | 62°F | 5.0" |
| June | 62°F | 83°F | 72°F | 6.5" |
| July | 65°F | 86°F | 75°F | 4.5" |
| August | 63°F | 84°F | 73°F | 5.2" |
| September | 54°F | 78°F | 65°F | 3.7" |
| October | 43°F | 65°F | 53°F | 3.0" |
| November | 32°F | 52°F | 41°F | 2.0" |
| December | 20°F | 36°F | 28°F | 1.9" |
| Index | Packwood | Iowa | National |
| Air quality index | 35 | 39 | 42 |
| Pollution index | 577,838 | 1,154,535 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 278 |
| Days with moderate air quality | 86 |
| 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 | 0.090% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Fairfield, IA | 10,327 | 29 | 42.0% |
| Maharishi Vedic City, IA | 486 | 29 | 42.0% |
| Agency, IA | 625 | 29 | 42.0% |
| Libertyville, IA | 377 | 29 | 42.0% |
| Batavia, IA | 557 | 29 | 42.0% |
| Packwood, IA | 586 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Golden Beach, FL | 586 | 41 | 18.0% |
| Dumont, IA | 586 | 15 | 70.0% |
| Bonfield, IL | 586 | 0 | 100.0% |
| White City, KS | 586 | 32 | 36.0% |
| Upper Marlboro, MD | 586 | 47 | 6.0% |
| Packwood, IA | 586 | 35 | 30.0% |
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