Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 32°F | 44°F | 37°F | 2.7" |
February | 32°F | 45°F | 38°F | 2.7" |
March | 40°F | 55°F | 47°F | 3.4" |
April | 51°F | 68°F | 59°F | 3.8" |
May | 60°F | 76°F | 67°F | 3.9" |
June | 70°F | 86°F | 77°F | 4.5" |
July | 75°F | 90°F | 82°F | 5.0" |
August | 73°F | 87°F | 79°F | 4.6" |
September | 67°F | 80°F | 73°F | 4.4" |
October | 55°F | 69°F | 62°F | 4.6" |
November | 45°F | 58°F | 50°F | 2.4" |
December | 37°F | 48°F | 42°F | 4.1" |
Index | Canton | Baltimore | Maryland |
Air quality index | 46 | 46 | 43 |
Pollution index | 9,823,920 | 9,823,920 | 5,342,367 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 223 |
Days with moderate air quality | 129 |
Days w/ poor A.Q. for sensitive groups | 13 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.050% |
Lead | 0.030% |
Mercury | 0.140% |
City | Population | Air Quality Index | National Avg. |
Gambrills, MD | 2,929 | 46 | 8.0% |
Pasadena, MD | 29,432 | 46 | 8.0% |
Elkridge, MD | 21,778 | 46 | 8.0% |
Lansdowne, MD | 8,635 | 46 | 8.0% |
Severn, MD | 53,374 | 46 | 8.0% |
Baltimore, MD | 602,274 | 46 | 8.0% |
City | Population | Air Quality Index | National Avg. |
Milwaukee, WI | 592,649 | 44 | 12.0% |
Louisville, KY | 618,733 | 49 | 2.0% |
Albuquerque, NM | 560,447 | 53 | 6.0% |
Surrey, BC | 560,150 | n/a | |
Las Vegas, NV | 644,594 | 54 | 8.0% |
Baltimore, MD | 602,274 | 46 | 8.0% |