| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 50°F | 37°F | 0.4" |
| February | 29°F | 57°F | 42°F | 0.4" |
| March | 35°F | 66°F | 50°F | 0.3" |
| April | 42°F | 74°F | 58°F | 0.5" |
| May | 50°F | 81°F | 66°F | 0.5" |
| June | 62°F | 93°F | 78°F | 0.5" |
| July | 66°F | 93°F | 79°F | 1.9" |
| August | 64°F | 90°F | 76°F | 1.5" |
| September | 58°F | 84°F | 70°F | 1.5" |
| October | 46°F | 74°F | 59°F | 0.9" |
| November | 34°F | 62°F | 47°F | 0.3" |
| December | 26°F | 50°F | 37°F | 0.8" |
| Index | Chical | New Mexico | National |
| Air quality index | 53 | 37 | 42 |
| Pollution index | 10,739,100 | 2,051,791 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 161 |
| Days with moderate air quality | 200 |
| Days w/ poor A.Q. for sensitive groups | 4 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.100% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| South Valley, NM | 39,150 | 53 | 6.0% |
| Tome, NM | 1,585 | 53 | 6.0% |
| Meadow Lake, NM | 4,266 | 53 | 6.0% |
| Belen, NM | 7,476 | 53 | 6.0% |
| Las Maravillas, NM | 1,960 | 53 | 6.0% |
| Chical, NM | 205 | 53 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| College City, CA | 205 | 44 | 12.0% |
| Castana, IA | 205 | 35 | 30.0% |
| Coulter, IA | 205 | 15 | 70.0% |
| Sherrill, IA | 205 | 29 | 42.0% |
| Onaway, ID | 205 | 10 | 80.0% |
| Chical, NM | 205 | 53 | 6.0% |
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