| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 16°F | 33°F | 24°F | 4.4" |
| February | 16°F | 34°F | 24°F | 4.1" |
| March | 22°F | 40°F | 31°F | 4.4" |
| April | 31°F | 50°F | 41°F | 4.0" |
| May | 40°F | 59°F | 49°F | 4.8" |
| June | 48°F | 68°F | 57°F | 5.9" |
| July | 54°F | 75°F | 64°F | 3.9" |
| August | 53°F | 75°F | 63°F | 3.7" |
| September | 48°F | 68°F | 58°F | 4.3" |
| October | 40°F | 58°F | 49°F | 6.5" |
| November | 32°F | 48°F | 40°F | 5.0" |
| December | 23°F | 39°F | 30°F | 8.8" |
| Index | Lubec | Maine | National |
| Air quality index | 31 | 33 | 42 |
| Pollution index | 3,235,100 | 3,417,521 | 2,726,193 |
| Measurement | Total |
| Days measured | 361 |
| Days with good air quality | 348 |
| Days with moderate air quality | 13 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Eastport, ME | 1,300 | 31 | 38.0% |
| Lubec, ME | 400 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Edmondson, AR | 400 | 45 | 10.0% |
| Terminous, CA | 400 | 45 | 10.0% |
| Cloud Lake, FL | 400 | 36 | 28.0% |
| Lakota, IA | 400 | 15 | 70.0% |
| Arenzville, IL | 400 | 40 | 20.0% |
| Lubec, ME | 400 | 31 | 38.0% |
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