Hillary Rodham Clinton's buckling to pneumonia Sunday, requiring her to be whisked away from a 9/11 ceremony at New York's Ground Zero, was the temperature of just 75-77 degrees, one of the coolest in the past month.

Weather Underground said it was 75 degrees at the time, a day after it reached 94 when it was also extremely muggy in downtown New York City.

Sunday, however, was much cooler and breezy with little of the humidity of the whole summer.

Video appears to show Clinton losing her balance as she left 9/11 memorial. She says she's now "feeling great." pic.twitter.com/uOmBcpelKB— Liz Kreutz (@ABCLiz) September 11, 2016



Campaign spokesman Nick Merrill said in a statement, "During this ceremony, she felt overheated so departed to go to her daughter's apartment, and is feeling much better."

Other reports had the former first lady and Democratic presidential nominee returning to her New York home in suburban Chappaqua.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com