| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 69°F | 79°F | 74°F | 2.5" |
| February | 68°F | 79°F | 73°F | 3.0" |
| March | 69°F | 79°F | 74°F | 4.3" |
| April | 71°F | 80°F | 75°F | 1.9" |
| May | 72°F | 82°F | 76°F | 1.3" |
| June | 74°F | 83°F | 78°F | 1.1" |
| July | 74°F | 84°F | 78°F | 1.5" |
| August | 75°F | 85°F | 79°F | 1.2" |
| September | 75°F | 85°F | 80°F | 0.9" |
| October | 74°F | 84°F | 79°F | 2.2" |
| November | 72°F | 82°F | 77°F | 3.8" |
| December | 70°F | 80°F | 75°F | 4.3" |
| Index | Heeia | Hawaii | National |
| Air quality index | 30 | 59 | 50 |
| 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 Villages, HI | 7,568 | 30 | 40.0% |
| Wahiawa, HI | 17,696 | 30 | 40.0% |
| Waipio Acres, HI | 5,169 | 30 | 40.0% |
| Ahuimanu, HI | 8,312 | 30 | 40.0% |
| Hauula, HI | 3,578 | 30 | 40.0% |
| Heeia, HI | 4,536 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Highgrove, CA | 4,537 | 89 | 78.0% |
| Buena, NJ | 4,534 | 40 | 20.0% |
| Berlin, MD | 4,538 | 36 | 28.0% |
| Centreville, MD | 4,538 | 42 | 16.0% |
| Ashdown, AR | 4,533 | 39 | 22.0% |
| Heeia, HI | 4,536 | 30 | 40.0% |
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