Weather Avenue > 
Weather America > 
United States > 
Maryland > 
| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 15°C | -10°C | 2°C |
| February | 18°C | -4°C | 5°C |
| March | 24°C | -1°C | 9°C |
| April | 30°C | 3°C | 13°C |
| May | 32°C | 7°C | 19°C |
| June | 37°C | 14°C | 25°C |
| July | 38°C | 17°C | 27°C |
| August | 37°C | 14°C | 25°C |
| September | 38°C | 12°C | 22°C |
| October | 30°C | 4°C | 17°C |
| November | 21°C | -5°C | 7°C |
| December | 16°C | -2°C | 6°C |
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