| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 67°F | 54°F | 1.2" |
| February | 46°F | 71°F | 58°F | 0.6" |
| March | 52°F | 79°F | 65°F | 0.7" |
| April | 58°F | 85°F | 72°F | 0.2" |
| May | 66°F | 93°F | 80°F | 0.3" |
| June | 77°F | 104°F | 91°F | 0.1" |
| July | 83°F | 105°F | 94°F | 0.8" |
| August | 81°F | 104°F | 92°F | 1.2" |
| September | 75°F | 99°F | 87°F | 0.9" |
| October | 63°F | 89°F | 76°F | 0.3" |
| November | 51°F | 78°F | 64°F | 0.5" |
| December | 43°F | 66°F | 53°F | 1.3" |
| Index | Roosevelt | Arizona | National |
| Air quality index | 60 | 57 | 42 |
| Pollution index | 3,235,590 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 145 |
| Days with moderate air quality | 164 |
| Days w/ poor A.Q. for sensitive groups | 50 |
| Days with unhealthy air quality | 6 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.050% |
| City | Population | Air Quality Index | National Avg. |
| Tonto Basin, AZ | 1,743 | 60 | 20.0% |
| Roosevelt, AZ | 6 | 60 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Kupreanof, AK | 6 | 20 | 60.0% |
| Wide Ruins, AZ | 6 | 17 | 66.0% |
| Keeler, CA | 6 | 47 | 6.0% |
| Lakeside, CO | 6 | 58 | 16.0% |
| Marineland, FL | 6 | 31 | 38.0% |
| Roosevelt, AZ | 6 | 60 | 20.0% |
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