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 | Trego | Montana | National |
Air quality index | 37 | 34 | 42 |
Pollution index | 968,253 | 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 | 0.001% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.000% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Olney, MT | 113 | 37 | 26.0% |
Eureka, MT | 1,517 | 37 | 26.0% |
Rexford, MT | 58 | 37 | 26.0% |
Fortine, MT | 435 | 37 | 26.0% |
Stryker, MT | 22 | 37 | 26.0% |
Trego, MT | 855 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Klawock, AK | 855 | 20 | 60.0% |
Piper City, IL | 855 | 42 | 16.0% |
Freeport, MN | 855 | 32 | 36.0% |
Tohatchi, NM | 855 | 17 | 66.0% |
Earlville, NY | 855 | 27 | 46.0% |
Trego, MT | 855 | 37 | 26.0% |