| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 41°F | 30°F | 6.2" |
| February | 26°F | 45°F | 34°F | 2.3" |
| March | 33°F | 58°F | 44°F | 2.8" |
| April | 39°F | 67°F | 52°F | 2.7" |
| May | 47°F | 75°F | 60°F | 3.2" |
| June | 57°F | 86°F | 71°F | 0.7" |
| July | 64°F | 91°F | 76°F | 2.6" |
| August | 61°F | 89°F | 74°F | 1.6" |
| September | 56°F | 81°F | 67°F | 2.9" |
| October | 42°F | 67°F | 53°F | 3.6" |
| November | 32°F | 54°F | 41°F | 1.9" |
| December | 24°F | 41°F | 31°F | 7.1" |
| Index | Blanding | Utah | National |
| Air quality index | 44 | 45 | 42 |
| Pollution index | 1,584,960 | 3,340,369 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 276 |
| Days with moderate air quality | 89 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| White Mesa, UT | 138 | 49 | 2.0% |
| Blanding, UT | 3,594 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Boonsboro, MD | 3,594 | 40 | 20.0% |
| O'Neill, NE | 3,594 | 19 | 62.0% |
| Baldwin, GA | 3,593 | 37 | 26.0% |
| Morton, MS | 3,593 | 44 | 12.0% |
| Carlyle, IL | 3,595 | 43 | 14.0% |
| Blanding, UT | 3,594 | 44 | 12.0% |
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