National Weather Service United States Department of Commerce

Another Day with Flood Potential in the Central U.S, Fire Weather Threats in the West, and Heat in the South

Typical summer-time weather conditions have settled in across much of the U.S. with slow moving frontal systems producing heavy rain in the Central U.S. and high pressure producing excessive heat in the South. In the West, a frontal system is keeping winds gusty and producing elevated-to-critical fire weather conditions from the Central Great Basin to the Plains. Read More >

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 (1899-2019):
  • Average date of first 100°F: July 1
  • 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)