Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 5°F | 29°F | 17°F | 0.5" |
February | 13°F | 36°F | 23°F | 0.5" |
March | 25°F | 52°F | 36°F | 2.3" |
April | 31°F | 58°F | 43°F | 2.7" |
May | 41°F | 66°F | 52°F | 7.1" |
June | 52°F | 77°F | 64°F | 8.3" |
July | 59°F | 91°F | 74°F | 2.9" |
August | 53°F | 86°F | 69°F | 1.7" |
September | 44°F | 77°F | 59°F | 3.1" |
October | 33°F | 60°F | 45°F | 1.8" |
November | 23°F | 46°F | 33°F | 1.1" |
December | 9°F | 30°F | 19°F | 0.8" |
Index | Ismay | Montana | National |
Air quality index | 33 | 34 | 42 |
Pollution index | 155,479 | 834,473 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 354 |
Days with moderate air quality | 11 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.001% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Plevna, MT | 311 | 33 | 34.0% |
Ismay, MT | 0 | 33 | 34.0% |
City | Population | Air Quality Index | National Avg. |
Chase, AK | 0 | 31 | 38.0% |
Chiniak, AK | 0 | 31 | 38.0% |
Chisana, AK | 0 | 31 | 38.0% |
Dot Lake, AK | 0 | 38 | 24.0% |
Eureka Roadhouse, AK | 0 | 31 | 38.0% |
Ismay, MT | 0 | 33 | 34.0% |