Baltimore Average Temperature by Month

This page shows the average temperature in each month of the year in Baltimore, Maryland. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Baltimore?
In Baltimore, Maryland, the warmest month is July, with an average daily high temperature of 88.3 °F and an average low of 68.0 °F.
What's the Coldest Month in Baltimore?
In Baltimore, Maryland, the coolest month is January, with an average daily high temperature of 42.7 °F and an average low of 25.7 °F.
Month Avg. High Avg. Low
January 42.7 °F 25.7 °F
February 45.9 °F 27.2 °F
March 54.3 °F 34.3 °F
April 66.0 °F 43.9 °F
May 75.0 °F 53.6 °F
June 83.9 °F 62.9 °F
July 88.3 °F 68.0 °F
August 86.0 °F 66.1 °F
September 79.2 °F 59.2 °F
October 67.8 °F 46.9 °F
November 56.8 °F 36.8 °F
December 47.0 °F 29.9 °F
Year 66.2 °F 46.3 °F
Weather Station Details
Years Station Coordinates
1940–2024 Baltimore International Airport location
1871–1939 Baltimore Customs House location