| 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 | Halawa | 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 Beach, HI | 13,803 | 30 | 40.0% |
| Kalaeloa, HI | 2,421 | 30 | 40.0% |
| Ocean Pointe, HI | 15,688 | 30 | 40.0% |
| Waikele, HI | 7,246 | 30 | 40.0% |
| West Loch Estate, HI | 6,685 | 30 | 40.0% |
| Halawa, HI | 13,953 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Dolbeau-Mistassini, QC | 13,956 | n/a | |
| Cayce, SC | 13,964 | 43 | 14.0% |
| Powell River, BC | 13,967 | n/a | |
| Wixom, MI | 13,970 | 40 | 20.0% |
| Hutchinson, MN | 13,935 | 32 | 36.0% |
| Halawa, HI | 13,953 | 30 | 40.0% |
Here are the best places to live in Hawaii
These are the largest cities in Hawaii
Most Dangerous Cities In The US
These are the 10 cheapest cities in Hawaii