Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 46°F | 34°F | 3.1" |
February | 25°F | 47°F | 36°F | 2.7" |
March | 33°F | 58°F | 45°F | 3.6" |
April | 43°F | 70°F | 56°F | 3.8" |
May | 52°F | 77°F | 65°F | 4.1" |
June | 62°F | 86°F | 74°F | 4.7" |
July | 67°F | 90°F | 78°F | 4.5" |
August | 65°F | 88°F | 76°F | 4.7" |
September | 58°F | 82°F | 70°F | 4.3" |
October | 47°F | 70°F | 58°F | 5.7" |
November | 36°F | 59°F | 47°F | 2.8" |
December | 30°F | 50°F | 39°F | 4.3" |
Index | South Laurel | 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. |
Catonsville, MD | 41,592 | 46 | 8.0% |
Arden on the Severn, MD | 1,457 | 46 | 8.0% |
Herald Harbor, MD | 2,414 | 46 | 8.0% |
North Laurel, MD | 24,856 | 46 | 8.0% |
Ferndale, MD | 17,732 | 46 | 8.0% |
South Laurel, MD | 27,593 | 47 | 6.0% |
City | Population | Air Quality Index | National Avg. |
Milton, MA | 27,590 | 43 | 14.0% |
Tualatin, OR | 27,601 | 38 | 24.0% |
Morrisville, NC | 27,582 | 44 | 12.0% |
Converse, TX | 27,582 | 49 | 2.0% |
Lansing, IL | 27,614 | 55 | 10.0% |
South Laurel, MD | 27,593 | 47 | 6.0% |