The D.C. region barely missed out on sweating its way into the record book Monday, nearly passing a three-decade-old mark for the most 90-degree days in a year.Likely the last reminder of summer heat, temperatures reached 87 degrees at Ronald Reagan Washington National Airport. With another 90-degree measurement, 2010 would have surpassed the previous record of 67 such days, set in 1980.

However, meteorologists said Monday was likely the last chance to break the record.