Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 24°F | 34°F | 28°F | 10.5" |
February | 27°F | 40°F | 32°F | 1.8" |
March | 31°F | 49°F | 39°F | 2.0" |
April | 37°F | 59°F | 47°F | 1.0" |
May | 45°F | 70°F | 56°F | 1.9" |
June | 51°F | 76°F | 62°F | 2.4" |
July | 58°F | 87°F | 71°F | 0.8" |
August | 56°F | 85°F | 69°F | 1.1" |
September | 48°F | 73°F | 58°F | 1.5" |
October | 39°F | 57°F | 46°F | 2.2" |
November | 31°F | 43°F | 35°F | 2.3" |
December | 22°F | 32°F | 26°F | 8.7" |
Index | Troy | 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. |
Troy, MT | 972 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Lakeview, AR | 972 | 36 | 28.0% |
Brunswick, MO | 972 | 38 | 24.0% |
Clarkton, NC | 972 | 30 | 40.0% |
Lake Waynoka, OH | 972 | 43 | 14.0% |
Pound, VA | 972 | 45 | 10.0% |
Troy, MT | 972 | 37 | 26.0% |