| 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 | Big Lake | 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 | 18,228 | 31 | 38.0% |
| Meadow Lakes, AK | 8,504 | 31 | 38.0% |
| Point MacKenzie, AK | 1,372 | 31 | 38.0% |
| Houston, AK | 1,991 | 31 | 38.0% |
| Big Lake, AK | 2,859 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Lakeshore, LA | 2,859 | 34 | 32.0% |
| Wernersville, PA | 2,859 | 42 | 16.0% |
| Island Walk, FL | 2,858 | 34 | 32.0% |
| Tama, IA | 2,858 | 39 | 22.0% |
| Minster, OH | 2,858 | 39 | 22.0% |
| Big Lake, AK | 2,859 | 31 | 38.0% |