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 | Glenn Dale | Maryland | National |
Air quality index | 47 | 43 | 42 |
Pollution index | 14,735,000 | 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 | 0.220% |
Benzene | 0.090% |
Carbon Tetrachloride | 0.030% |
Lead | 0.110% |
Mercury | 0.270% |
City | Population | Air Quality Index | National Avg. |
Herald Harbor, MD | 2,414 | 46 | 8.0% |
North Laurel, MD | 24,856 | 46 | 8.0% |
Riviera Beach, MD | 12,780 | 46 | 8.0% |
Arden on the Severn, MD | 1,457 | 46 | 8.0% |
Crownsville, MD | 1,473 | 46 | 8.0% |
Glenn Dale, MD | 13,722 | 47 | 6.0% |
City | Population | Air Quality Index | National Avg. |
Beacon, NY | 13,723 | 36 | 28.0% |
Lake Arbor, MD | 13,720 | 47 | 6.0% |
Lebanon, NH | 13,718 | 34 | 32.0% |
Teays Valley, WV | 13,729 | 40 | 20.0% |
Waimalu, HI | 13,714 | 30 | 40.0% |
Glenn Dale, MD | 13,722 | 47 | 6.0% |