| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 20°F | 43°F | 30°F | 0.7" |
| February | 23°F | 50°F | 35°F | 0.6" |
| March | 29°F | 60°F | 43°F | 0.6" |
| April | 34°F | 66°F | 49°F | 0.5" |
| May | 42°F | 73°F | 57°F | 1.0" |
| June | 53°F | 86°F | 69°F | 1.1" |
| July | 57°F | 85°F | 69°F | 3.6" |
| August | 55°F | 82°F | 67°F | 2.7" |
| September | 49°F | 77°F | 62°F | 2.1" |
| October | 39°F | 67°F | 51°F | 1.6" |
| November | 28°F | 56°F | 40°F | 0.5" |
| December | 21°F | 43°F | 31°F | 1.3" |
| Index | Sena | New Mexico | National |
| Air quality index | 44 | 37 | 42 |
| Pollution index | 2,227,120 | 2,051,791 | 2,726,193 |
| Measurement | Total |
| Days measured | 362 |
| Days with good air quality | 274 |
| Days with moderate air quality | 87 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.005% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| North San Ysidro, NM | 47 | 44 | 12.0% |
| San Jose, NM | 750 | 44 | 12.0% |
| Villanueva, NM | 339 | 44 | 12.0% |
| Tecolote, NM | 161 | 44 | 12.0% |
| San Jose CDP (San Miguel County), NM | 165 | 44 | 12.0% |
| Sena, NM | 187 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Fox, AK | 187 | 38 | 24.0% |
| Morristown, AZ | 187 | 74 | 48.0% |
| Coffee Creek, CA | 187 | 42 | 16.0% |
| Markleeville, CA | 187 | 13 | 74.0% |
| Henlopen Acres, DE | 187 | 36 | 28.0% |
| Sena, NM | 187 | 44 | 12.0% |
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