| 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 | Waipahu | Honolulu | Hawaii |
| Air quality index | 30 | 30 | 59 |
| Pollution index | 11,544,100 | 11,544,100 | 3,576,767 |
| 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 Villages, HI | 6,452 | 30 | 40.0% |
| Makakilo, HI | 19,565 | 30 | 40.0% |
| Schofield Barracks, HI | 18,276 | 30 | 40.0% |
| Waipio, HI | 10,745 | 30 | 40.0% |
| Whitmore Village, HI | 3,764 | 30 | 40.0% |
| Honolulu, HI | 347,181 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Anaheim, CA | 353,085 | 89 | 78.0% |
| Markham, ON | 359,111 | n/a | |
| Santa Ana, CA | 332,610 | 89 | 78.0% |
| Riverside, CA | 327,569 | 89 | 78.0% |
| Corpus Christi, TX | 326,332 | 42 | 16.0% |
| Honolulu, HI | 347,181 | 30 | 40.0% |
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