| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 8°F | 24°F | 16°F | 2.2" |
| February | 13°F | 30°F | 21°F | 0.9" |
| March | 17°F | 35°F | 26°F | 1.8" |
| April | 29°F | 49°F | 39°F | 1.1" |
| May | 37°F | 60°F | 49°F | 2.3" |
| June | 46°F | 65°F | 55°F | 2.9" |
| July | 50°F | 67°F | 58°F | 3.0" |
| August | 48°F | 65°F | 56°F | 3.6" |
| September | 41°F | 57°F | 48°F | 4.5" |
| October | 29°F | 45°F | 37°F | 3.4" |
| November | 13°F | 28°F | 20°F | 2.2" |
| December | 10°F | 24°F | 17°F | 1.3" |
| Index | Houston | Alaska | National |
| Air quality index | 31 | 30 | 42 |
| Pollution index | 7,145,440 | 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 | 0.030% |
| Benzene | 0.130% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.140% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Knik-Fairview, AK | 17,682 | 31 | 38.0% |
| Willow, AK | 1,956 | 31 | 38.0% |
| Meadow Lakes, AK | 8,307 | 31 | 38.0% |
| Tanaina, AK | 10,449 | 31 | 38.0% |
| Big Lake, AK | 2,769 | 31 | 38.0% |
| Houston, AK | 1,952 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Shawsville, VA | 1,952 | 41 | 18.0% |
| Gordon, GA | 1,951 | 38 | 24.0% |
| Slayton, MN | 1,953 | 32 | 36.0% |
| Newtown, PA | 1,951 | 41 | 18.0% |
| Smoky River No. 130, AB | 1,951 | n/a | |
| Houston, AK | 1,952 | 31 | 38.0% |
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