| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 41°F | 31°F | 4.1" |
| February | 26°F | 44°F | 34°F | 5.6" |
| March | 34°F | 55°F | 43°F | 6.4" |
| April | 44°F | 68°F | 55°F | 6.1" |
| May | 55°F | 76°F | 64°F | 9.2" |
| June | 63°F | 84°F | 72°F | 6.0" |
| July | 66°F | 87°F | 76°F | 5.5" |
| August | 64°F | 85°F | 73°F | 7.7" |
| September | 58°F | 79°F | 67°F | 7.6" |
| October | 46°F | 67°F | 55°F | 9.4" |
| November | 36°F | 55°F | 44°F | 5.4" |
| December | 30°F | 46°F | 37°F | 6.8" |
| Index | Burtonsville | 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. |
| Elkridge, MD | 21,778 | 46 | 8.0% |
| Lansdowne, MD | 8,635 | 46 | 8.0% |
| Severn, MD | 53,374 | 46 | 8.0% |
| Catonsville, MD | 41,592 | 46 | 8.0% |
| Woodlawn CDP (Prince George's County), MD | 7,873 | 46 | 8.0% |
| Burtonsville, MD | 10,812 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Totowa, NJ | 10,810 | 51 | 2.0% |
| Saint-Raymond, QC | 10,809 | n/a | |
| Rockport, TX | 10,815 | 42 | 16.0% |
| La Tuque, QC | 10,815 | n/a | |
| Yazoo City, MS | 10,806 | 44 | 12.0% |
| Burtonsville, MD | 10,812 | 47 | 6.0% |
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