Temperatures hit the freezing mark early Wednesday morning at Baltimore's point of record for the first time since April 10.
Baltimore/Washington International Thurgood Marshall Airport spent most of the hours between midnight and dawn in the mid-30s and briefly hit 32 degrees before sunrise, according to preliminary measurements from the National Weather Service.
Fort Meade and Upper Marlboro also hit the freezing mark, while Aberdeen fell to 31 degrees, Frederick hit 30 degrees and Emmitsburg reported a low of 27 degrees, according to the weather service.
In the Inner Harbor, where the Patapsco River lessens temperature swings, the low was meanwhile mild in comparison, dropping to 44 degrees.
The first freeze for BWI comes right about on time, or slightly earlier than average, according to the University of Maryland Extension.
In one out of three years, the season's first freeze comes on or before Oct. 23. The median date of the first freeze at the airport is Oct. 28.
Downtown likely has at least few weeks before experiencing any freezing temperatures. In half of years, it occurs on or before Nov. 13, but of course that means there is an equal chance it won't arrive until after that date.