| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 43°F | 69°F | 57°F | 3.0" |
| February | 42°F | 69°F | 56°F | 1.3" |
| March | 44°F | 69°F | 57°F | 2.6" |
| April | 45°F | 71°F | 59°F | 1.7" |
| May | 46°F | 71°F | 59°F | 1.3" |
| June | 49°F | 74°F | 63°F | 0.4" |
| July | 50°F | 76°F | 64°F | 1.9" |
| August | 50°F | 76°F | 64°F | 1.5" |
| September | 48°F | 74°F | 62°F | 1.0" |
| October | 48°F | 74°F | 62°F | 2.6" |
| November | 47°F | 73°F | 60°F | 1.3" |
| December | 45°F | 71°F | 58°F | 4.0" |
| Index | Waiohinu | Hawaii | National |
| Air quality index | 142 | 59 | 50 |
| Pollution index | 1,421,020 | 4,235,086 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 2 |
| Days with moderate air quality | 58 |
| Days w/ poor A.Q. for sensitive groups | 145 |
| Days with unhealthy air quality | 159 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Pahala, HI | 1,341 | 142 | 184% |
| Discovery Harbour, HI | 1,128 | 142 | 184% |
| Hawaiian Ocean View, HI | 4,477 | 142 | 184% |
| Naalehu, HI | 1,062 | 142 | 184% |
| Waiohinu, HI | 168 | 142 | 184% |
| City, State | Population | Air Quality Index | National Avg. |
| Lawrence Creek, OK | 168 | 48 | 4% |
| Woodbine, KS | 168 | 32 | 36% |
| Climbing Hill, IA | 168 | 41 | 18% |
| Whitehorse, SD | 168 | 34 | 32% |
| Cuyamungue Grant, NM | 168 | 41 | 18% |
| Waiohinu, HI | 168 | 142 | 184% |