| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 9°F | 27°F | 17°F | 2.1" |
| February | 20°F | 42°F | 30°F | 1.1" |
| March | 26°F | 56°F | 40°F | 1.9" |
| April | 32°F | 65°F | 48°F | 1.9" |
| May | 41°F | 74°F | 58°F | 2.3" |
| June | 48°F | 83°F | 67°F | 0.7" |
| July | 57°F | 93°F | 76°F | 0.5" |
| August | 55°F | 88°F | 71°F | 1.0" |
| September | 45°F | 77°F | 60°F | 1.8" |
| October | 35°F | 64°F | 48°F | 3.3" |
| November | 23°F | 50°F | 36°F | 1.0" |
| December | 7°F | 28°F | 17°F | 2.2" |
| Index | Jensen | Utah | National |
| Air quality index | 49 | 45 | 42 |
| Pollution index | 3,914,890 | 3,340,369 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 223 |
| Days with moderate air quality | 125 |
| Days w/ poor A.Q. for sensitive groups | 12 |
| Days with unhealthy air quality | 4 |
| Pollutant | Total |
| Arsenic | 0.110% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.030% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Vernal, UT | 10,449 | 49 | 2.0% |
| Maeser, UT | 4,064 | 49 | 2.0% |
| Naples, UT | 3,512 | 49 | 2.0% |
| Jensen, UT | 299 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Cove, AR | 299 | 36 | 28.0% |
| Salton Sea Beach, CA | 299 | 58 | 16.0% |
| Milton, KS | 299 | 40 | 20.0% |
| Burlington, MI | 299 | 38 | 24.0% |
| Lupton, MI | 299 | 26 | 48.0% |
| Jensen, UT | 299 | 49 | 2.0% |
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