Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 28°F | 47°F | 37°F | 2.7" |
February | 29°F | 50°F | 38°F | 2.3" |
March | 37°F | 60°F | 47°F | 3.2" |
April | 47°F | 71°F | 58°F | 3.4" |
May | 56°F | 78°F | 67°F | 4.6" |
June | 67°F | 87°F | 77°F | 5.3" |
July | 72°F | 91°F | 81°F | 4.2" |
August | 70°F | 90°F | 79°F | 3.2" |
September | 63°F | 83°F | 72°F | 3.5" |
October | 52°F | 72°F | 61°F | 5.0" |
November | 40°F | 61°F | 50°F | 2.5" |
December | 33°F | 52°F | 42°F | 3.8" |
Index | Langley Park | 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. |
Maryland City, MD | 17,681 | 46 | 8.0% |
Elkridge, MD | 21,778 | 46 | 8.0% |
Savage, MD | 6,849 | 46 | 8.0% |
Fort Meade, MD | 11,340 | 46 | 8.0% |
North Laurel, MD | 24,856 | 46 | 8.0% |
Langley Park, MD | 19,391 | 47 | 6.0% |
City | Population | Air Quality Index | National Avg. |
Yorkville, IL | 19,386 | 0 | 100.0% |
Montrose, CO | 19,396 | 44 | 12.0% |
Five Forks, SC | 19,399 | 46 | 8.0% |
Fairwood, WA | 19,400 | 45 | 10.0% |
Johnstown, PA | 19,381 | 39 | 22.0% |
Langley Park, MD | 19,391 | 47 | 6.0% |