| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -18°F | -4°F | -10°F | 0.2" |
| February | -17°F | -3°F | -10°F | 0.4" |
| March | -18°F | -4°F | -11°F | 0.3" |
| April | -3°F | 11°F | 5°F | 0.2" |
| May | 19°F | 28°F | 23°F | 0.4" |
| June | 31°F | 42°F | 36°F | 0.5" |
| July | 36°F | 50°F | 41°F | 1.0" |
| August | 36°F | 47°F | 41°F | 1.1" |
| September | 31°F | 39°F | 35°F | 0.8" |
| October | 20°F | 29°F | 25°F | 0.6" |
| November | 1°F | 13°F | 7°F | 0.5" |
| December | -11°F | 3°F | -4°F | 0.4" |
| Index | Barrow | Alaska | National |
| Air quality index | 38 | 30 | 42 |
| Pollution index | 400,692 | 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 | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Barrow, AK | 4,316 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Puhi, HI | 4,316 | 13 | 74.0% |
| French Island, WI | 4,318 | 35 | 30.0% |
| Canton, NC | 4,313 | 44 | 12.0% |
| Chester, MD | 4,319 | 46 | 8.0% |
| Cornwall, PA | 4,319 | 42 | 16.0% |
| Barrow, AK | 4,316 | 38 | 24.0% |
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