| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 46°F | 70°F | 57°F | 2.6" |
| February | 48°F | 70°F | 58°F | 2.5" |
| March | 51°F | 72°F | 60°F | 1.0" |
| April | 53°F | 74°F | 62°F | 0.6" |
| May | 57°F | 75°F | 65°F | 0.3" |
| June | 61°F | 78°F | 67°F | 0.0" |
| July | 65°F | 83°F | 71°F | 0.2" |
| August | 65°F | 85°F | 72°F | 0.0" |
| September | 63°F | 85°F | 72°F | 0.3" |
| October | 59°F | 81°F | 68°F | 0.5" |
| November | 52°F | 76°F | 62°F | 0.7" |
| December | 46°F | 69°F | 56°F | 2.7" |
| Index | Artesia | California | National |
| Air quality index | 72 | 55 | 42 |
| Pollution index | 858,652 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 66 |
| Days with moderate air quality | 208 |
| Days w/ poor A.Q. for sensitive groups | 62 |
| Days with unhealthy air quality | 28 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Hacienda Heights, CA | 55,386 | 72 | 44.0% |
| South San Jose Hills, CA | 19,104 | 72 | 44.0% |
| West Puente Valley, CA | 23,555 | 72 | 44.0% |
| West Athens, CA | 9,554 | 72 | 44.0% |
| Bellflower, CA | 76,339 | 72 | 44.0% |
| Artesia, CA | 16,456 | 72 | 44.0% |
| City | Population | Air Quality Index | National Avg. |
| Hazel Park, MI | 16,452 | 56 | 12.0% |
| Streetsboro, OH | 16,444 | 43 | 14.0% |
| Wahiawa, HI | 16,442 | 30 | 40.0% |
| New Milford, NJ | 16,477 | 51 | 2.0% |
| Troutdale, OR | 16,433 | 38 | 24.0% |
| Artesia, CA | 16,456 | 72 | 44.0% |
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