| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -19°F | 2°F | -9°F | 0.6" |
| February | -13°F | 13°F | -1°F | 0.5" |
| March | -6°F | 25°F | 9°F | 0.4" |
| April | 20°F | 47°F | 34°F | 0.3" |
| May | 38°F | 64°F | 52°F | 0.5" |
| June | 49°F | 73°F | 61°F | 1.8" |
| July | 52°F | 74°F | 63°F | 2.9" |
| August | 47°F | 69°F | 57°F | 2.1" |
| September | 36°F | 58°F | 47°F | 1.5" |
| October | 19°F | 37°F | 27°F | 0.7" |
| November | -7°F | 12°F | 2°F | 0.8" |
| December | -14°F | 7°F | -3°F | 0.7" |
| Index | Ester | Alaska | National |
| Air quality index | 38 | 30 | 42 |
| Pollution index | 4,370,560 | 11,243,194 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 230 |
| Days with moderate air quality | 96 |
| Days w/ poor A.Q. for sensitive groups | 18 |
| Days with unhealthy air quality | 16 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.080% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.090% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| Fox, AK | 187 | 38 | 24.0% |
| Steele Creek, AK | 7,365 | 38 | 24.0% |
| College, AK | 12,734 | 38 | 24.0% |
| Goldstream, AK | 3,315 | 38 | 24.0% |
| Fairbanks, AK | 31,427 | 38 | 24.0% |
| Ester, AK | 2,174 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Earle, AR | 2,174 | 45 | 10.0% |
| Lake Hamilton, AR | 2,174 | 38 | 24.0% |
| Port Sulphur, LA | 2,174 | 45 | 10.0% |
| Horse Shoe, NC | 2,174 | 44 | 12.0% |
| Commercial Point, OH | 2,174 | 46 | 8.0% |
| Ester, AK | 2,174 | 38 | 24.0% |
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