Llano, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00415272, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,020 ft, 30.742, -98.654. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 20	Nov 11
Earliest	Feb 8 (1992)	Oct 13 (1977)
Latest	Apr 17 (1999)	Dec 12 (1961)
Trend	0.6 days earlier per decade	little change (less than half a day per decade)
Years with data	65	66

At 28°F (hard freeze) the median last spring date is Mar 4 and the median first fall date is Nov 22.

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	Mar 17	Nov 10	Feb 22	Dec 2
2023	no data	Nov 27	no data	Dec 11
2022	Mar 20	Nov 13	Mar 13	Dec 18
2021	Mar 4	Nov 23	Feb 21	Dec 12
2020	Feb 28	no data	Feb 28	no data
2019	Mar 6	no data	Mar 6	no data
2018	Mar 14	Nov 13	Feb 13	Nov 14
2017	Mar 4	Oct 28	Jan 27	Nov 23
2016	Mar 21	Nov 20	Feb 9	Nov 20
2015	Mar 7	Nov 22	Mar 7	Nov 22
2014	Apr 15	Nov 13	Mar 4	Nov 17
2013	Mar 27	Nov 13	Mar 26	Nov 13
2012	no data	Oct 27	no data	Nov 13
2011	Apr 6	Nov 4	Mar 7	Nov 4
2010	Feb 27	Oct 29	Feb 24	Nov 19
2009	Apr 8	Nov 18	Apr 8	Nov 18
2008	no data	Oct 24	no data	Oct 28
2007	Apr 15	no data	Mar 6	no data
2006	Mar 26	Nov 16	Mar 26	Nov 17
2005	Apr 4	Oct 26	Mar 17	Oct 26
2004	Apr 14	Nov 4	Feb 27	Dec 1
2003	Apr 11	no data	Mar 31	no data
2001	no data	Oct 17	no data	Dec 1
2000	Apr 4	Nov 9	Feb 6	Nov 13
1999	Apr 17	Nov 3	Mar 16	Nov 26
1998	no data	Dec 9	no data	Dec 14
1996	no data	Nov 24	no data	Nov 25
1995	Mar 9	no data	Mar 9	no data
1994	Mar 11	Nov 30	Feb 14	Dec 24
1993	Mar 14	Oct 30	Mar 14	Oct 30
1992	Feb 8	Nov 4	Jan 20	Nov 26
1991	Feb 20	Nov 1	Feb 2	Nov 3
1990	Mar 2	Nov 30	Jan 27	Dec 4
1989	Apr 11	Oct 20	Mar 8	Dec 4
1988	Mar 19	Nov 17	Mar 19	Nov 21
1987	Apr 3	Nov 11	Feb 18	Nov 11
1986	Mar 22	Nov 13	Mar 1	Nov 13
1985	Feb 16	Dec 1	Feb 13	Dec 2
1984	Mar 8	Nov 11	Mar 1	Nov 28
1983	Apr 15	Nov 24	Feb 7	Nov 29
1982	Mar 8	Nov 4	Mar 8	Nov 15
1981	Mar 19	Nov 11	Feb 13	Dec 2
1980	Mar 19	Oct 30	Mar 18	Oct 30
1979	Mar 6	Nov 4	Feb 27	Nov 14
1978	Mar 18	Nov 17	Mar 17	Dec 5
1977	Mar 9	Oct 13	Mar 1	Nov 10
1976	Mar 17	Oct 20	Feb 25	Nov 28
1975	Apr 4	Nov 13	Apr 3	Nov 13
1974	Mar 25	Nov 15	Feb 27	Nov 26
1973	Apr 9	Nov 21	Feb 14	Dec 6
1972	Mar 3	Nov 14	Feb 10	Nov 15
1971	Apr 7	Nov 20	Apr 7	Dec 18
1970	Apr 6	Oct 28	Feb 16	Nov 3
1969	Mar 26	Nov 15	Mar 13	Nov 15
1968	Mar 22	Nov 4	Mar 13	Nov 12
1967	Mar 8	Nov 3	Mar 6	Nov 3
1966	Mar 25	Nov 2	Mar 7	Nov 29
1965	Mar 26	Nov 30	Mar 21	Nov 30
1964	Mar 21	Nov 22	Feb 28	Nov 22
1963	Mar 6	Nov 2	Mar 6	Nov 24
1962	Mar 17	Nov 13	Mar 3	Dec 12
1961	Apr 16	Dec 12	Feb 9	Dec 12
1960	Mar 18	Nov 11	Mar 18	Nov 11
1959	Apr 13	Nov 6	Mar 17	Nov 6
1958	Mar 20	Nov 19	Feb 17	Nov 19
1957	Mar 26	Oct 27	Jan 19	Nov 30
1956	no data	Nov 9	no data	Nov 27
1955	Mar 29	no data	Mar 28	no data
1954	Mar 16	Nov 5	Mar 15	Nov 5
1953	Feb 23	Nov 9	Feb 23	Nov 9
1952	Mar 25	Oct 29	Mar 25	Dec 6
1951	Apr 12	Nov 3	Mar 20	Nov 3

"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 1991–2020 frost probabilities.