| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 10°F | 41°F | 24°F | 0.9" |
| February | 16°F | 45°F | 29°F | 0.8" |
| March | 22°F | 54°F | 38°F | 0.9" |
| April | 26°F | 61°F | 43°F | 1.1" |
| May | 32°F | 70°F | 52°F | 1.0" |
| June | 41°F | 83°F | 64°F | 0.5" |
| July | 49°F | 90°F | 71°F | 0.9" |
| August | 47°F | 87°F | 68°F | 0.9" |
| September | 38°F | 79°F | 58°F | 1.0" |
| October | 28°F | 66°F | 46°F | 0.9" |
| November | 19°F | 55°F | 35°F | 0.7" |
| December | 11°F | 42°F | 25°F | 1.0" |
| Index | McGill | Nevada | National |
| Air quality index | 14 | 38 | 42 |
| Pollution index | 239,557 | 2,601,914 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 363 |
| Days with moderate air quality | 2 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Ruth, NV | 235 | 14 | 72.0% |
| Ely, NV | 3,993 | 14 | 72.0% |
| McGill, NV | 847 | 14 | 72.0% |
| City | Population | Air Quality Index | National Avg. |
| Glenwood, GA | 847 | 26 | 48.0% |
| Cissna Park, IL | 847 | 42 | 16.0% |
| Mulberry Grove, IL | 847 | 40 | 20.0% |
| Greendale, MO | 847 | 54 | 8.0% |
| Richardton, ND | 847 | 33 | 34.0% |
| McGill, NV | 847 | 14 | 72.0% |
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