Waco - 100° Day Summary

Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. 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)

Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

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.)