| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 31°F | 24°F | 16.0" |
| February | 18°F | 31°F | 24°F | 3.8" |
| March | 21°F | 34°F | 27°F | 5.4" |
| April | 32°F | 47°F | 39°F | 4.1" |
| May | 40°F | 55°F | 47°F | 1.9" |
| June | 46°F | 63°F | 54°F | 4.9" |
| July | 48°F | 63°F | 55°F | 2.4" |
| August | 48°F | 63°F | 54°F | 1.1" |
| September | 43°F | 56°F | 48°F | 7.5" |
| October | 34°F | 44°F | 38°F | 3.9" |
| November | 24°F | 34°F | 28°F | 8.9" |
| December | 21°F | 32°F | 26°F | 7.9" |
| Index | Tatitlek | Alaska | National |
| Air quality index | 31 | 30 | 42 |
| Pollution index | 749,334 | 11,243,194 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 262 |
| Days with moderate air quality | 92 |
| Days w/ poor A.Q. for sensitive groups | 7 |
| Days with unhealthy air quality | 4 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Tatitlek, AK | 41 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Tinsman, AR | 41 | 35 | 30.0% |
| Two Buttes, CO | 41 | 20 | 60.0% |
| Conway, IA | 41 | 43 | 14.0% |
| Irvington, IA | 41 | 15 | 70.0% |
| Rathbun, IA | 41 | 39 | 22.0% |
| Tatitlek, AK | 41 | 31 | 38.0% |
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