Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 4°F | 21°F | 13°F | 1.0" |
February | 7°F | 26°F | 16°F | 1.4" |
March | 21°F | 42°F | 30°F | 1.7" |
April | 31°F | 57°F | 42°F | 3.3" |
May | 43°F | 69°F | 56°F | 4.0" |
June | 53°F | 78°F | 65°F | 3.9" |
July | 58°F | 83°F | 70°F | 5.3" |
August | 53°F | 82°F | 67°F | 4.0" |
September | 47°F | 73°F | 59°F | 3.9" |
October | 35°F | 58°F | 45°F | 2.6" |
November | 21°F | 42°F | 30°F | 0.9" |
December | 7°F | 26°F | 16°F | 1.8" |
Index | Butte | North Dakota | National |
Air quality index | 36 | 35 | 42 |
Pollution index | 4,994,790 | 1,038,665 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 320 |
Days with moderate air quality | 45 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.000% |
Lead | 0.040% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Voltaire, ND | 45 | 36 | 28.0% |
Balfour, ND | 13 | 36 | 28.0% |
Kief, ND | 18 | 36 | 28.0% |
Bergen, ND | 0 | 36 | 28.0% |
Ruso, ND | 0 | 36 | 28.0% |
Butte, ND | 88 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Beaver, AK | 88 | 38 | 24.0% |
Nondalton, AK | 88 | 31 | 38.0% |
Casmalia, CA | 88 | 46 | 8.0% |
Furnace Creek, CA | 88 | 15 | 70.0% |
Long Barn, CA | 88 | 39 | 22.0% |
Butte, ND | 88 | 36 | 28.0% |