Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 16°F | 32°F | 24°F | 1.5" |
February | 19°F | 38°F | 28°F | 1.0" |
March | 26°F | 48°F | 36°F | 1.3" |
April | 31°F | 57°F | 43°F | 1.4" |
May | 38°F | 68°F | 52°F | 1.7" |
June | 44°F | 74°F | 59°F | 3.1" |
July | 48°F | 86°F | 68°F | 1.0" |
August | 46°F | 84°F | 65°F | 0.8" |
September | 39°F | 73°F | 55°F | 1.2" |
October | 31°F | 57°F | 43°F | 1.5" |
November | 25°F | 42°F | 33°F | 1.4" |
December | 16°F | 30°F | 23°F | 1.9" |
Index | Helena Flats | Montana | National |
Air quality index | 37 | 34 | 42 |
Pollution index | 260,100 | 834,473 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 302 |
Days with moderate air quality | 62 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.004% |
Carbon Tetrachloride | 0.000% |
Lead | 0.002% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Bigfork, MT | 4,733 | 37 | 26.0% |
Somers, MT | 1,079 | 37 | 26.0% |
Hungry Horse, MT | 650 | 37 | 26.0% |
Forest Hill Village, MT | 99 | 37 | 26.0% |
Columbia Falls, MT | 5,651 | 37 | 26.0% |
Helena Flats, MT | 1,219 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Caraway, AR | 1,219 | 45 | 10.0% |
Shongopovi, AZ | 1,219 | 45 | 10.0% |
Fort Totten, ND | 1,219 | 36 | 28.0% |
Magnolia, OH | 1,219 | 46 | 8.0% |
Cornwells Heights, PA | 1,219 | 51 | 2.0% |
Helena Flats, MT | 1,219 | 37 | 26.0% |