Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.
| 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 | Perry Hall | Maryland | National |
| Air quality index | 46 | 43 | 42 |
| Pollution index | 9,823,920 | 5,342,367 | 2,726,193 |
| 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. |
| Bel Air, MD | 10,102 | 46 | 8.0% |
| Edgewood, MD | 25,065 | 46 | 8.0% |
| Kingsville, MD | 4,649 | 46 | 8.0% |
| Arbutus, MD | 19,267 | 46 | 8.0% |
| Catonsville, MD | 41,592 | 46 | 8.0% |
| Perry Hall, MD | 27,778 | 46 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Slidell, LA | 27,782 | 45 | 10.0% |
| Kirkwood, MO | 27,772 | 54 | 8.0% |
| Fridley, MN | 27,789 | 46 | 8.0% |
| Reisterstown, MD | 27,804 | 46 | 8.0% |
| Williston, ND | 27,812 | 34 | 32.0% |
| Perry Hall, MD | 27,778 | 46 | 8.0% |
Here are the best places to live in Maryland
Safest Cities In The US
Most Dangerous States In The US
These are the largest cities in Maryland