| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 29°F | 58°F | 41°F | 0.3" |
| February | 32°F | 65°F | 46°F | 0.1" |
| March | 40°F | 74°F | 55°F | 0.0" |
| April | 47°F | 81°F | 64°F | 0.3" |
| May | 55°F | 87°F | 71°F | 0.4" |
| June | 66°F | 97°F | 81°F | 0.5" |
| July | 69°F | 94°F | 81°F | 0.8" |
| August | 68°F | 93°F | 80°F | 1.2" |
| September | 61°F | 87°F | 73°F | 1.8" |
| October | 49°F | 79°F | 63°F | 1.0" |
| November | 38°F | 68°F | 51°F | 0.2" |
| December | 30°F | 57°F | 41°F | 0.2" |
| Index | Morningside | New Mexico | National |
| Air quality index | 47 | 37 | 42 |
| Pollution index | 3,873,820 | 2,051,791 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 212 |
| Days with moderate air quality | 134 |
| Days w/ poor A.Q. for sensitive groups | 17 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Lake Arthur, NM | 403 | 15 | 70.0% |
| Artesia, NM | 12,463 | 47 | 6.0% |
| Atoka, NM | 1,275 | 47 | 6.0% |
| Morningside, NM | 634 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Fuller Acres, CA | 634 | 67 | 34.0% |
| Vernon, FL | 634 | 38 | 24.0% |
| Toomsboro, GA | 634 | 38 | 24.0% |
| Doon, IA | 634 | 36 | 28.0% |
| Ririe, ID | 634 | 43 | 14.0% |
| Morningside, NM | 634 | 47 | 6.0% |
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