| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 46°F | 37°F | 5.0" |
| February | 26°F | 43°F | 33°F | 2.2" |
| March | 35°F | 55°F | 44°F | 8.6" |
| April | 44°F | 65°F | 54°F | 8.0" |
| May | 53°F | 74°F | 63°F | 10.0" |
| June | 64°F | 84°F | 73°F | 5.0" |
| July | 68°F | 88°F | 78°F | 5.4" |
| August | 70°F | 88°F | 78°F | 7.3" |
| September | 61°F | 82°F | 71°F | 2.3" |
| October | 53°F | 71°F | 61°F | 14.5" |
| November | 40°F | 59°F | 48°F | 3.8" |
| December | 30°F | 45°F | 37°F | 4.8" |
| Index | Seabrook | Maryland | National |
| Air quality index | 47 | 43 | 42 |
| Pollution index | 15,133,000 | 5,342,367 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 209 |
| Days with moderate air quality | 145 |
| Days w/ poor A.Q. for sensitive groups | 10 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.130% |
| Carbon Tetrachloride | 0.060% |
| Lead | 0.070% |
| Mercury | 0.130% |
| City | Population | Air Quality Index | National Avg. |
| Fort Meade, MD | 11,340 | 46 | 8.0% |
| Savage, MD | 6,849 | 46 | 8.0% |
| Gambrills, MD | 2,929 | 46 | 8.0% |
| Maryland City, MD | 17,681 | 46 | 8.0% |
| Glen Burnie, MD | 69,649 | 46 | 8.0% |
| Seabrook, MD | 19,020 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Port Alberni, BC | 19,018 | n/a | |
| Liberal, KS | 19,025 | 15 | 70.0% |
| Highland, UT | 19,012 | 46 | 8.0% |
| Deerfield, IL | 19,030 | 55 | 10.0% |
| Rosedale, CA | 19,003 | 67 | 34.0% |
| Seabrook, MD | 19,020 | 47 | 6.0% |
Here are the best places to live in Maryland
See the best places to live in Seabrook
Check out the 10 safest cities in Maryland
Most Dangerous Cities In The US