Waco - 100° Day Summary

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. 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)

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

Waco - 100° Day Summary

100° Day Summary for Waco Click Here for DFW

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

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