Brenham, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00411048, 1951 to 2025, measured from daily minimum temperatures.

Elevation 313 ft, 30.159, -96.397. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Feb 27	Dec 1
Earliest	Jan 9 (2017)	Oct 28 (1957)
Latest	Mar 27 (1955)	Dec 30 (1954)
Trend	2.4 days earlier per decade	0.5 days later per decade
Years with data	72, 2 with no freeze	73, 5 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 11 and the median first fall date is Dec 12.

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
2025	Feb 21	Dec 15	Feb 21	none
2024	Jan 21	none	Jan 21	none
2023	Feb 19	none	none	none
2022	no data	Dec 18	no data	Dec 23
2020	Feb 28	Dec 1	none	none
2019	Mar 7	Nov 1	Mar 6	Nov 13
2018	Feb 13	Nov 14	Jan 19	Nov 14
2017	Jan 9	Dec 8	Jan 9	none
2016	Jan 29	Dec 18	none	Dec 18
2015	Mar 9	Nov 23	Mar 9	none
2014	Mar 5	Nov 14	Mar 4	Dec 29
2013	Mar 7	Nov 14	none	Dec 10
2012	Feb 13	Dec 11	none	Dec 27
2011	Feb 12	Dec 7	Feb 12	Dec 7
2010	Feb 26	Nov 27	Feb 17	Dec 13
2009	Mar 3	Dec 5	Jan 30	Dec 5
2008	Mar 20	Dec 6	Mar 7	Dec 16
2007	Mar 6	Dec 4	Feb 20	Dec 23
2006	no data	Nov 21	no data	Dec 1
2005	Mar 3	Nov 17	none	Dec 6
2004	Feb 15	Dec 1	Jan 7	Dec 15
2003	Feb 27	Nov 24	Feb 26	none
2002	Mar 6	Dec 6	Mar 5	none
2001	Feb 11	Nov 29	Jan 21	none
2000	Jan 31	Dec 12	Jan 6	Dec 30
1999	Jan 15	Dec 22	Jan 5	none
1998	Mar 11	Dec 22	none	Dec 26
1997	Jan 31	Nov 16	Jan 29	Dec 13
1996	Mar 11	Dec 18	Mar 11	Dec 19
1995	Mar 9	Dec 10	none	Dec 10
1994	Feb 14	no data	Feb 11	no data
1993	Mar 14	Oct 31	none	Nov 27
1992	Jan 20	Nov 27	Jan 20	Nov 27
1991	Feb 1	Nov 4	Jan 1	none
1990	none	Dec 5	none	Dec 22
1989	Mar 9	Dec 9	Mar 8	Dec 13
1988	Mar 15	none	Feb 13	none
1987	Feb 19	Dec 15	none	Dec 17
1986	Feb 13	Nov 13	Feb 13	none
1985	Feb 13	Dec 2	Feb 4	Dec 2
1984	Mar 1	Nov 22	Feb 7	Dec 7
1983	Feb 8	Dec 7	none	Dec 19
1982	Mar 8	Dec 12	Feb 8	Dec 12
1981	Feb 13	Dec 5	Feb 13	Dec 18
1980	Mar 4	Nov 27	Mar 4	Dec 25
1979	Feb 19	Nov 30	Feb 18	Nov 30
1978	Mar 6	Dec 8	Mar 6	Dec 9
1977	Feb 6	Dec 7	Jan 30	none
1976	Mar 17	Nov 15	Jan 28	Nov 28
1975	Mar 15	Nov 23	Feb 8	Dec 18
1974	Feb 27	Nov 30	Feb 26	Nov 30
1973	Feb 12	Dec 17	Feb 11	Dec 20
1972	Feb 10	Dec 6	Feb 5	Dec 11
1971	Mar 5	none	Mar 5	none
1970	Feb 5	Nov 16	Feb 4	Nov 24
1969	Mar 11	Nov 15	Jan 6	Dec 31
1968	Mar 23	Nov 12	Mar 1	Dec 15
1967	Mar 8	Dec 4	Feb 8	none
1966	Feb 26	Nov 2	Feb 4	Dec 11
1965	Mar 21	none	Mar 21	none
1964	Feb 23	Nov 23	Feb 23	Dec 6
1963	Feb 23	Dec 12	Feb 14	Dec 15
1962	Mar 6	Dec 12	Mar 2	Dec 12
1961	Feb 9	Dec 13	Jan 31	Dec 13
1960	Mar 5	Nov 30	Mar 5	Dec 21
1959	Jan 24	Nov 6	Jan 23	Nov 7
1958	Mar 19	Nov 29	Feb 17	Nov 29
1957	Mar 9	Oct 28	Jan 19	Dec 11
1956	Mar 9	Nov 27	Feb 4	none
1955	Mar 27	Nov 28	Mar 27	Nov 29
1954	Mar 15	Dec 30	Jan 23	none
1953	Feb 23	Dec 15	Jan 18	Dec 23
1952	none	Dec 15	none	Dec 15
1951	Mar 14	Nov 3	Feb 17	Nov 18

"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.