Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 18°F | 39°F | 28°F | 0.4" |
February | 18°F | 40°F | 29°F | 0.3" |
March | 26°F | 52°F | 38°F | 0.3" |
April | 33°F | 59°F | 45°F | 1.7" |
May | 41°F | 68°F | 54°F | 2.9" |
June | 49°F | 77°F | 63°F | 2.6" |
July | 55°F | 89°F | 72°F | 1.4" |
August | 54°F | 86°F | 70°F | 1.5" |
September | 46°F | 76°F | 60°F | 2.0" |
October | 37°F | 61°F | 48°F | 1.3" |
November | 26°F | 48°F | 36°F | 0.5" |
December | 15°F | 36°F | 26°F | 0.4" |
Index | Black Eagle | Montana | National |
Air quality index | 21 | 34 | 42 |
Pollution index | 250,374 | 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 | 0.004% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Great Falls, MT | 58,717 | 21 | 58.0% |
Sun Prairie, MT | 1,617 | 21 | 58.0% |
Malmstrom AFB, MT | 3,902 | 21 | 58.0% |
Ulm, MT | 750 | 21 | 58.0% |
Sand Coulee, MT | 201 | 21 | 58.0% |
Black Eagle, MT | 836 | 21 | 58.0% |
City | Population | Air Quality Index | National Avg. |
Potlatch, ID | 836 | 10 | 80.0% |
Rocky Boy West, MT | 836 | 21 | 58.0% |
Dobbins Heights, NC | 836 | 41 | 18.0% |
Holly Pond, AL | 837 | 41 | 18.0% |
Linnell Camp, CA | 837 | 66 | 32.0% |
Black Eagle, MT | 836 | 21 | 58.0% |