| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 64°F | 79°F | 71°F | 6.4" |
| February | 64°F | 78°F | 70°F | 3.1" |
| March | 62°F | 78°F | 70°F | 9.6" |
| April | 65°F | 80°F | 73°F | 1.3" |
| May | 67°F | 83°F | 75°F | 0.6" |
| June | 70°F | 85°F | 77°F | 0.1" |
| July | 72°F | 85°F | 77°F | 0.2" |
| August | 72°F | 86°F | 78°F | 1.0" |
| September | 72°F | 86°F | 78°F | 0.8" |
| October | 71°F | 84°F | 76°F | 1.6" |
| November | 68°F | 82°F | 74°F | 8.6" |
| December | 66°F | 79°F | 72°F | 5.5" |
| Index | Maunaloa | Hawaii | National |
| Air quality index | 30 | 59 | 42 |
| Pollution index | 1,615 | 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 | 0.000% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Kaunakakai, HI | 3,076 | 15 | 70.0% |
| Kualapuu, HI | 1,887 | 15 | 70.0% |
| Maunaloa, HI | 317 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Gillsville, GA | 317 | 37 | 26.0% |
| Granville, IA | 317 | 35 | 30.0% |
| Mystic, IA | 317 | 39 | 22.0% |
| Ute, IA | 317 | 35 | 30.0% |
| East Carondelet, IL | 317 | 54 | 8.0% |
| Maunaloa, HI | 317 | 30 | 40.0% |
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