100° Day Summary for Dallas/Fort Worth        Click Here for Waco

Average Number of 100° Days (1981-2010):

DFW - 100-Degree Days (1981-2010)

(March, April, and October have had 100° days,
but the average is near zero.)

 

First and Last Occurrences (1899-2012):
  • Average date of first 100°F: June 30
  • Average date of last 100°F: August 26
  • Earliest occurrence: Mar 9, 1911 (100°F)
  • Latest occurrence: Oct 3, 1951 (106°F)
  • Earliest last occurrence: May 30, 1928 (101°F)
  • Latest first occurrence: Aug 23, 1989 (101°F)
Most and Fewest:
  • Most in a calendar year: 71 (2011)
  • Fewest in a calendar year: 0 (1973, 1906)
  • Most consecutive: 42 (Jun 23 - Aug 3, 1980)
  • Most in a month: 31 (Jul 1980)
  • Greatest number of months in a year with at least one occurrence: 5
    2006 - April, June, July, August, September
    1998 - May, June, July, August, September
    1925 - April, June, July, August, September
    1911 - March, May, June, July, August
  • Only month to record both 100°F and 32°F: Mar 1916 (25°F on the 3rd and 100°F on the 21st)

 

 

 


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.