Multiple 90s in October

With the temperature hitting a record 91 at BWI-Marshall Monday afternoon, we have had multiple October days in the 90s for the first time since 1947. The Baltimore-Washington National Weather Service Forecast Office in Sterling, VA reported that Baltimore’s record for 90 degree days in October was set in 1941 when five days reached or exceeded 90. Here’s a list of Octobers with more than one day in the 90s:

1941 … 5 days
2007 … 2 days (so far)
1947 … 2 days
1939 … 2 days
1922 … 2 days

The first week of October 2007 has been summer-like, but it’s only the 7th warmest first week of October on record. The warmest ever was 1941 when the first seven days had an average temperature of 80.1. The first week of October 2007 had an average temperature of 71.4, which is 11.2 degrees above average.

Changes appear headed this way. A cold front is expected to move through Maryland Tuesday night. Temperatures will drop about 10 degrees behind this front with another 10-15 degree temperature drop expected Friday into the weekend as low pressure in the mid levels of the atmosphere moves southeast from the great lakes into the mid Atlantic states.

Tom Tasselmyer

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