The weather instruments at BWI-Marshall Airport reported a temperature of 104 degrees at 2 p.m. Tuesday. That breaks the record of 101 degrees set for the date in 1999.
It was 101 at the Maryland Science Center and at the Sun's weather station at Calvert and Centre streets.
UPDATE: At 4 p.m., the NWS reported a high of 105 degrees at BWI-Marshall, making this the hottest day here in 27 years. It is the second-highest July temperature ever recorded for Baltimore, after a 107-degree high on July 10, 1936. It matches highs reached only four other times, on June 29, 1934, Aug. 6 and 7, 1918, and Aug. 20, 1983.
(Baltimore Sun photo of children cooling off in Patterson Park by Duy Do)