By Martin Weil
Washington Post Staff Writer
Saturday, June 26, 2010; B06
Three heat-related deaths were reported in Maryland this week, as 90-degree temperatures ruled in the Washington region, and a 100-degree reading on Thursday broke a record that had stood for 116 years.
Each of the people who died in Maryland was 65 or older and all had underlying health conditions, according to the state Department of Health and Mental Hygiene. One of the three died in Montgomery County, and the other two were Baltimore County residents. In at least two residences, air conditioning was not in use.
Temperatures of 90 or above have been reported every day this week at Reagan National Airport and on 14 of the first 25 days of the month. With more such days expected Saturday and Sunday, National Weather Service forecasters predict that this month "will likely end up being the warmest June on record."
The hottest day of the month by far was Thursday, with records set at all three of the area's airports. The 100 degrees at National broke the record of 98, set in 1894. It was Washington's first 100-degree reading since Aug. 8, 2007.
It was also the hottest June day here in 13 years. The last time the June temperature reached 100 at National was June 25, 1997. Thursday marked only the 16th time in 139 years that the June temperature here reached the triple digits. Baltimore also reached 100 on Thursday.
As June neared an end, the month's average temperature was about 6 degrees above normal, and officials urged people to look out for those needing help.