| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 8°F | 25°F | 16°F | 0.4" |
| February | 10°F | 28°F | 18°F | 0.5" |
| March | 25°F | 44°F | 33°F | 1.4" |
| April | 36°F | 60°F | 46°F | 3.1" |
| May | 47°F | 72°F | 59°F | 4.2" |
| June | 58°F | 81°F | 69°F | 4.7" |
| July | 61°F | 84°F | 72°F | 2.7" |
| August | 59°F | 80°F | 69°F | 4.0" |
| September | 50°F | 75°F | 62°F | 2.9" |
| October | 38°F | 61°F | 49°F | 3.1" |
| November | 25°F | 46°F | 35°F | 1.0" |
| December | 12°F | 29°F | 20°F | 0.8" |
| Index | Rodman | Iowa | National |
| Air quality index | 15 | 39 | 50 |
| Pollution index | 426,616 | 1,643,836 | 5,066,862 |
| Measurement | Total |
| Days measured | 118 |
| Days with good air quality | 118 |
| Days with moderate air quality | 0 |
| 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 | 0.000% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Ottosen, IA | 63 | 15 | 70% |
| Rolfe, IA | 572 | 15 | 70% |
| Emmetsburg, IA | 3,803 | 15 | 70% |
| Whittemore, IA | 504 | 15 | 70% |
| Plover, IA | 55 | 15 | 70% |
| Rodman, IA | 39 | 15 | 70% |
| City, State | Population | Air Quality Index | National Avg. |
| New Pine Creek, OR | 39 | 29 | 42% |
| Ponshewaing, MI | 39 | 36 | 28% |
| Wallowa Lake, OR | 39 | 20 | 60% |
| Clayton, IA | 39 | 29 | 42% |
| Poole, NE | 39 | 19 | 62% |
| Rodman, IA | 39 | 15 | 70% |
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