National Weather Service United States Department of Commerce

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

100° Day Summary for Waco        Click Here for DFW

Average Number of 100° Days (1991-2020):

Waco - 100-Degree Days (1991-2020)

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

 

First and Last Occurrences (1902-2024):
  • Average date of first 100°F: July 4
  • Average date of last 100°F: August 30
  • Earliest occurrence: Mar 28, 1971 (100°F)
  • Latest occurrence: Oct 15, 2024 (100°F)
  • Latest first occurrence: Oct 3, 1979 (101°F)
  • Earliest last occurrence: Jul 8, 1931 (104°F)
Most and Fewest:
  • Most in a calendar year: 90 (2011)
  • Fewest in a calendar year: 0 (1920, 1919)
  • Most consecutive: 44 (Jun 30 - Aug 12, 2011)
  • Most in a month: 31 (Jul 2011, Jul 1980)
  • Greatest number of months in a year with at least one occurrence: 5
    2024 - June, July, August, September, October
    2022 - June, July, August, September, October
    2011 - May, June, July, August, September
    1998 - May, June, July, August, September
    1985 - May, June, July, August, September
    1977 - June, July, August, September, October
    1963 - April, June, July, August, September
    1911 - May, June, July, August, September
  • Only month to record both 100°F and 32°F: Mar 1971 (29°F on the 3rd and 100°F on the 28th)