| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 66°F | 81°F | 73°F | 1.8" |
| February | 67°F | 81°F | 74°F | 1.4" |
| March | 68°F | 82°F | 74°F | 2.9" |
| April | 70°F | 84°F | 76°F | 1.0" |
| May | 71°F | 85°F | 77°F | 1.2" |
| June | 74°F | 87°F | 79°F | 0.4" |
| July | 75°F | 88°F | 80°F | 0.6" |
| August | 75°F | 89°F | 81°F | 1.1" |
| September | 74°F | 88°F | 80°F | 1.0" |
| October | 73°F | 87°F | 79°F | 1.3" |
| November | 71°F | 85°F | 77°F | 2.0" |
| December | 68°F | 82°F | 75°F | 2.9" |
| Index | Waimalu | Hawaii | National |
| Air quality index | 30 | 59 | 42 |
| Pollution index | 11,544,100 | 3,576,767 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 347 |
| Days with moderate air quality | 18 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.120% |
| Carbon Tetrachloride | 0.060% |
| Lead | 0.360% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Ewa Gentry, HI | 26,358 | 30 | 40.0% |
| Kapolei, HI | 21,541 | 30 | 40.0% |
| Royal Kunia, HI | 13,857 | 30 | 40.0% |
| Waipahu, HI | 38,276 | 30 | 40.0% |
| Wheeler AFB, HI | 2,124 | 30 | 40.0% |
| Waimalu, HI | 13,714 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Moberly, MO | 13,710 | 38 | 24.0% |
| Lebanon, NH | 13,718 | 34 | 32.0% |
| Lake Arbor, MD | 13,720 | 47 | 6.0% |
| McMinnville, TN | 13,707 | 25 | 50.0% |
| Glenn Dale, MD | 13,722 | 47 | 6.0% |
| Waimalu, HI | 13,714 | 30 | 40.0% |
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