| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 21°F | 38°F | 29°F | 5.0" |
| February | 19°F | 37°F | 27°F | 4.3" |
| March | 24°F | 44°F | 34°F | 10.8" |
| April | 35°F | 56°F | 45°F | 9.5" |
| May | 44°F | 64°F | 54°F | 9.7" |
| June | 56°F | 77°F | 66°F | 3.4" |
| July | 62°F | 82°F | 71°F | 5.9" |
| August | 61°F | 83°F | 71°F | 5.0" |
| September | 54°F | 76°F | 65°F | 6.2" |
| October | 46°F | 64°F | 55°F | 8.2" |
| November | 33°F | 53°F | 43°F | 7.8" |
| December | 23°F | 40°F | 32°F | 6.3" |
| Index | Weweantic | Massachusetts | National |
| Air quality index | 36 | 40 | 42 |
| Pollution index | 9,737,620 | 8,399,610 | 2,726,193 |
| Measurement | Total |
| Days measured | 359 |
| Days with good air quality | 348 |
| Days with moderate air quality | 11 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.180% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.170% |
| Mercury | 0.140% |
| City | Population | Air Quality Index | National Avg. |
| Mashpee Neck, MA | 1,403 | 36 | 28.0% |
| New Seabury, MA | 595 | 36 | 28.0% |
| Pocasset, MA | 2,596 | 36 | 28.0% |
| Seconsett Island, MA | 37 | 36 | 28.0% |
| West Falmouth, MA | 1,836 | 36 | 28.0% |
| Weweantic, MA | 1,287 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Bear Creek, AK | 1,287 | 31 | 38.0% |
| Toluca, IL | 1,287 | 0 | 100.0% |
| South Shore, KY | 1,287 | 14 | 72.0% |
| Glide, OR | 1,287 | 24 | 52.0% |
| Muenster, TX | 1,287 | 43 | 14.0% |
| Weweantic, MA | 1,287 | 36 | 28.0% |
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