| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 47°F | 37°F | 3.2" |
| February | 29°F | 48°F | 38°F | 2.6" |
| March | 36°F | 55°F | 45°F | 3.0" |
| April | 45°F | 65°F | 55°F | 3.4" |
| May | 55°F | 73°F | 63°F | 3.4" |
| June | 65°F | 81°F | 73°F | 3.7" |
| July | 70°F | 86°F | 78°F | 3.9" |
| August | 68°F | 84°F | 76°F | 4.1" |
| September | 63°F | 78°F | 71°F | 4.1" |
| October | 52°F | 70°F | 61°F | 4.4" |
| November | 40°F | 59°F | 50°F | 2.7" |
| December | 34°F | 52°F | 43°F | 3.9" |
| Index | Newark | Maryland | National |
| Air quality index | 36 | 43 | 42 |
| Pollution index | 2,538,160 | 5,342,367 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 303 |
| Days with moderate air quality | 61 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.010% |
| Mercury | 0.003% |
| City | Population | Air Quality Index | National Avg. |
| Fenwick Island, DE | 445 | 36 | 28.0% |
| Pittsville, MD | 1,742 | 36 | 28.0% |
| Berlin, MD | 4,740 | 36 | 28.0% |
| Parsonsburg, MD | 287 | 36 | 28.0% |
| Pocomoke City, MD | 4,072 | 36 | 28.0% |
| Newark, MD | 439 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Epes, AL | 439 | 36 | 28.0% |
| Scotland, GA | 439 | 26 | 48.0% |
| Farnhamville, IA | 439 | 37 | 26.0% |
| Langleyville, IL | 439 | 40 | 20.0% |
| Wilkinson, IN | 439 | 28 | 44.0% |
| Newark, MD | 439 | 36 | 28.0% |
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