| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 1°F | 26°F | 13°F | 2.4" |
| February | 5°F | 30°F | 16°F | 0.8" |
| March | 16°F | 43°F | 28°F | 0.9" |
| April | 27°F | 58°F | 41°F | 2.0" |
| May | 36°F | 68°F | 52°F | 1.8" |
| June | 46°F | 76°F | 61°F | 2.7" |
| July | 51°F | 86°F | 69°F | 1.7" |
| August | 49°F | 84°F | 66°F | 1.5" |
| September | 40°F | 74°F | 55°F | 1.3" |
| October | 28°F | 58°F | 41°F | 2.0" |
| November | 16°F | 42°F | 27°F | 1.0" |
| December | -1°F | 24°F | 11°F | 2.1" |
| Index | Dodson | Montana | National |
| Air quality index | 21 | 34 | 42 |
| Pollution index | 241,407 | 834,473 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 350 |
| Days with moderate air quality | 12 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Dodson, MT | 128 | 21 | 58.0% |
| City | Population | Air Quality Index | National Avg. |
| Ouzinkie, AK | 128 | 31 | 38.0% |
| East Pleasant View, CO | 128 | 58 | 16.0% |
| St. Olaf, IA | 128 | 29 | 42.0% |
| Conkling Park, ID | 128 | 43 | 14.0% |
| LaPlace, IL | 128 | 44 | 12.0% |
| Dodson, MT | 128 | 21 | 58.0% |
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