Waco Rgnl Ap, TX: frost dates by year

Last spring and first fall frost at NOAA station USW00013959, 1951 to 2024, measured from daily minimum temperatures.

Elevation 500 ft, 31.619, -97.228. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 15	Nov 18
Earliest	Feb 5 (2000)	Oct 28 (1957)
Latest	Apr 15 (2014)	Dec 21 (1998)
Trend	little change (less than half a day per decade)	1.8 days earlier per decade
Years with data	74	74

At 28°F (hard freeze) the median last spring date is Feb 24 and the median first fall date is Dec 2.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

First fall frost (32°F)

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

Year	Last spring 32°F	First fall 32°F	Last spring 28°F	First fall 28°F
2024	Feb 19	Nov 21	Feb 18	Dec 21
2023	Mar 19	Nov 2	Mar 19	Dec 11
2022	Mar 24	Nov 12	Mar 12	Nov 13
2021	Mar 7	Nov 23	Feb 20	Dec 12
2020	Feb 28	Nov 16	Feb 27	Nov 30
2019	Mar 6	Oct 31	Mar 6	Nov 1
2018	Mar 14	Nov 13	Feb 12	Nov 13
2017	Mar 3	Oct 28	Jan 8	Dec 8
2016	Mar 21	Nov 19	Feb 7	Dec 17
2015	Mar 7	Nov 22	Mar 7	none
2014	Apr 15	Nov 13	Mar 13	Nov 13
2013	Mar 26	Nov 13	Mar 26	Nov 27
2012	Mar 4	Oct 28	Feb 25	Nov 13
2011	Mar 6	Nov 3	Mar 6	Nov 4
2010	Mar 22	Nov 26	Feb 18	Nov 27
2009	Apr 7	Nov 18	Apr 7	Dec 4
2008	Mar 8	Nov 15	Mar 8	Nov 25
2007	Apr 7	Dec 3	Mar 5	Dec 16
2006	Mar 25	Nov 20	Feb 19	Nov 21
2005	Mar 17	Nov 16	Jan 23	Nov 17
2004	Feb 27	Dec 1	Feb 7	Dec 15
2003	Apr 9	Nov 24	Feb 26	Nov 24
2002	Mar 22	Nov 28	Mar 4	Nov 28
2001	Feb 18	Nov 28	Feb 10	Dec 24
2000	Feb 5	Nov 14	Feb 5	Dec 11
1999	Mar 15	Nov 3	Jan 15	Dec 6
1998	Mar 12	Dec 21	Mar 12	Dec 21
1997	Apr 13	Nov 11	Jan 30	Nov 17
1996	Mar 21	Nov 24	Mar 21	Dec 18
1995	Mar 10	Nov 11	Mar 9	Nov 28
1994	Mar 10	Nov 30	Feb 14	none
1993	Mar 14	Oct 30	Feb 18	Oct 31
1992	Feb 8	Nov 5	Jan 16	Nov 27
1991	Feb 26	Nov 2	Feb 1	Nov 3
1990	Feb 17	Nov 30	Jan 13	Dec 5
1989	Apr 11	Nov 3	Mar 8	Nov 3
1988	Mar 19	Nov 17	Mar 14	Dec 29
1987	Apr 4	Nov 11	Feb 18	Dec 15
1986	Mar 21	Nov 13	Feb 12	Nov 13
1985	Feb 13	Dec 1	Feb 12	Dec 2
1984	Feb 28	Nov 22	Feb 28	none
1983	Apr 15	Nov 29	Mar 11	Dec 18
1982	Mar 7	Nov 13	Mar 7	Nov 15
1981	Mar 19	Dec 4	Feb 12	Dec 5
1980	Mar 18	Oct 30	Mar 18	Nov 28
1979	Mar 5	Nov 14	Feb 19	Nov 14
1978	Mar 5	Nov 17	Mar 5	Dec 8
1977	Feb 27	Nov 10	Feb 6	Dec 9
1976	Mar 17	Nov 12	Feb 7	Nov 28
1975	Apr 3	Nov 21	Apr 3	Nov 22
1974	Mar 24	Nov 29	Feb 25	Nov 30
1973	Apr 10	Dec 16	Apr 10	Dec 20
1972	Feb 19	Nov 22	Feb 8	Dec 6
1971	Mar 3	Dec 18	Feb 9	none
1970	Feb 10	Nov 15	Feb 3	Nov 24
1969	Mar 9	Nov 20	Mar 9	Dec 31
1968	Mar 23	Dec 6	Feb 23	Dec 8
1967	Mar 8	Dec 3	Mar 8	Dec 29
1966	Mar 24	Dec 10	Mar 7	Dec 10
1965	Mar 27	Dec 20	Mar 20	Dec 26
1964	Mar 26	Nov 21	Feb 22	Nov 22
1963	Mar 6	Nov 24	Feb 22	Dec 3
1962	Mar 6	Dec 11	Mar 2	Dec 11
1961	Feb 8	Dec 12	Jan 30	Dec 12
1960	Mar 18	Nov 11	Mar 4	Dec 21
1959	Mar 17	Nov 6	Feb 6	Nov 7
1958	Mar 19	Nov 28	Feb 16	Nov 29
1957	Mar 8	Oct 28	Jan 18	Dec 11
1956	Mar 16	Nov 17	Mar 8	Nov 27
1955	Mar 28	Nov 17	Mar 28	Nov 28
1954	Mar 15	Dec 13	Mar 14	Dec 30
1953	Feb 22	Dec 10	Feb 22	Dec 22
1952	Mar 24	Nov 11	Jan 5	Dec 15
1951	Mar 14	Nov 2	Mar 14	Nov 2

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.