| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -1°F | 20°F | 9°F | 0.4" |
| February | 1°F | 24°F | 12°F | 0.4" |
| March | 18°F | 39°F | 28°F | 1.1" |
| April | 31°F | 55°F | 42°F | 2.1" |
| May | 43°F | 68°F | 55°F | 3.1" |
| June | 53°F | 77°F | 65°F | 4.1" |
| July | 58°F | 82°F | 70°F | 4.3" |
| August | 56°F | 79°F | 67°F | 2.6" |
| September | 48°F | 71°F | 59°F | 2.7" |
| October | 36°F | 56°F | 45°F | 2.6" |
| November | 22°F | 40°F | 30°F | 0.8" |
| December | 6°F | 23°F | 14°F | 0.6" |
| Index | Whipholt | Minnesota | National |
| Air quality index | 29 | 35 | 42 |
| Pollution index | 2,145,140 | 1,854,519 | 2,726,193 |
| Measurement | Total |
| Days measured | 359 |
| Days with good air quality | 328 |
| Days with moderate air quality | 29 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Hackensack, MN | 336 | 29 | 42.0% |
| Walker, MN | 909 | 29 | 42.0% |
| Federal Dam, MN | 125 | 29 | 42.0% |
| Boy River, MN | 33 | 29 | 42.0% |
| Longville, MN | 185 | 29 | 42.0% |
| Whipholt, MN | 87 | 29 | 42.0% |
| City | Population | Air Quality Index | National Avg. |
| Graham, AL | 87 | 38 | 24.0% |
| Patmos, AR | 87 | 39 | 22.0% |
| Rossie, IA | 87 | 35 | 30.0% |
| Whiteash, IL | 87 | 43 | 14.0% |
| Blackey, KY | 87 | 45 | 10.0% |
| Whipholt, MN | 87 | 29 | 42.0% |