| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -8°F | 9°F | 0°F | 0.3" |
| February | -2°F | 18°F | 8°F | 0.3" |
| March | 1°F | 24°F | 13°F | 0.2" |
| April | 22°F | 45°F | 34°F | 0.2" |
| May | 38°F | 61°F | 50°F | 0.9" |
| June | 48°F | 69°F | 58°F | 2.6" |
| July | 51°F | 71°F | 60°F | 2.6" |
| August | 46°F | 67°F | 56°F | 1.7" |
| September | 36°F | 56°F | 46°F | 0.8" |
| October | 20°F | 36°F | 28°F | 0.5" |
| November | -2°F | 14°F | 6°F | 0.4" |
| December | -6°F | 11°F | 3°F | 0.3" |
| Index | Deltana | Alaska | National |
| Air quality index | 38 | 30 | 42 |
| Pollution index | 9,104,530 | 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 | 0.000% |
| Benzene | 0.210% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Dry Creek, AK | 262 | 38 | 24.0% |
| Fort Greely, AK | 135 | 38 | 24.0% |
| Deltana, AK | 2,131 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Huntington, UT | 2,131 | 46 | 8.0% |
| Sainte-Madeleine, QC | 2,131 | n/a | |
| Sneads, FL | 2,130 | 40 | 20.0% |
| Adamstown, MD | 2,130 | 40 | 20.0% |
| Basile, LA | 2,132 | 41 | 18.0% |
| Deltana, AK | 2,131 | 38 | 24.0% |
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