Earliest and Latest Days of 100° F in Dallas

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Dallas, Texas history. It is based on NOAA data from the years 1897–2024.

Also see:

Earliest 100 degree day in Dallas?

The earliest in the year that Dallas, Texas had a high temperature of at least 100 °F is April 17 which happened in 2006.

Latest 100 degree day in Dallas?

The latest in the year that Dallas, Texas had a high temperature of at least 100 °F is October 14 which happened in 1910.

Earliest Days ≥ 100 °F

Date	Year	Temperature
April 17	2006	100 °F
May 28	1927	103 °F
May 30	2003	100 °F
May 30	1985	102 °F
May 31	1998	102 °F
May 31	1985	103 °F
May 31	1911	103 °F
June 1	1998	102 °F
June 1	1985	100 °F
June 1	1913	100 °F
June 1	1911	103 °F
June 2	2018	101 °F
June 2	1998	100 °F
June 2	1977	100 °F
June 2	1913	102 °F
June 2	1911	101 °F
June 2	1910	100 °F
June 3	1977	100 °F
June 3	1913	101 °F
June 4	1977	100 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
October 14	1910	100 °F
October 1	1979	100 °F
October 1	1938	100 °F
September 30	1977	100 °F
September 29	2011	100 °F
September 29	1953	100 °F
September 28	2005	102 °F
September 28	1977	101 °F
September 28	1953	105 °F
September 27	1977	104 °F
September 27	1953	103 °F
September 26	2005	100 °F
September 26	1977	102 °F
September 25	2005	102 °F
September 25	1977	100 °F
September 24	2023	100 °F
September 24	1907	103 °F
September 23	2005	100 °F
September 22	2005	100 °F
September 22	1980	101 °F