The weather in Baltimore is characterised by four distinct seasons thanks to the city's subtropical humid climate. New arrivals should expect long hot summers and cool winters. Summer, from June to August, is humid and hot with temperatures averaging 81°F (27°C), with occasional thunderstorms in the late afternoon. Winter, from December to February, is generally mild. Snowfall can occur, but isn't common. Winter temperatures range from 36°F (2°C) to 50°F (10°C) but can drop to -7°C (19°F), depending on the impact of the Arctic air masses.

Spring and autumn are usually the most pleasant seasons in Baltimore, although rainfall is at its highest in the spring. Hurricanes haven’t been much of an issue recently, but Baltimore does lie in the path of the Pacific storms, and the remnants of hurricanes have been known to cause flooding in downtown Baltimore. This is something to bear in mind when considering purchasing property.