| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 8°F | 32°F | 19°F | 0.6" |
| February | 10°F | 36°F | 22°F | 0.4" |
| March | 20°F | 49°F | 33°F | 0.8" |
| April | 29°F | 61°F | 44°F | 1.3" |
| May | 38°F | 70°F | 54°F | 2.0" |
| June | 46°F | 79°F | 63°F | 2.4" |
| July | 53°F | 90°F | 72°F | 1.4" |
| August | 50°F | 88°F | 68°F | 1.0" |
| September | 41°F | 77°F | 58°F | 1.2" |
| October | 31°F | 62°F | 44°F | 1.0" |
| November | 20°F | 46°F | 32°F | 0.6" |
| December | 7°F | 31°F | 18°F | 0.7" |
| Index | Kremlin | Montana | National |
| Air quality index | 21 | 34 | 42 |
| Pollution index | 150,385 | 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 | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Beaver Creek, MT | 424 | 21 | 58.0% |
| Gildford, MT | 188 | 21 | 58.0% |
| Herron, MT | 188 | 21 | 58.0% |
| Kremlin, MT | 58 | 21 | 58.0% |
| City | Population | Air Quality Index | National Avg. |
| Ventana, AZ | 58 | 74 | 48.0% |
| Carrick, CA | 58 | 42 | 16.0% |
| Jeisyville, IL | 58 | 40 | 20.0% |
| Bethany, IN | 58 | 54 | 8.0% |
| Soldier, KS | 58 | 41 | 18.0% |
| Kremlin, MT | 58 | 21 | 58.0% |
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