Graham, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00413668, 1951 to 2014, measured from daily minimum temperatures.

Elevation 1,078 ft, 33.120, -98.567. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 4	Nov 4
Earliest	Feb 26 (2012)	Oct 8 (1952)
Latest	Apr 26 (2013)	Dec 7 (1998)
Trend	0.5 days later per decade	little change (less than half a day per decade)
Years with data	59	62

At 28°F (hard freeze) the median last spring date is Mar 20 and the median first fall date is Nov 13.

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
2014	Apr 16	Nov 12	Apr 16	Nov 12
2013	Apr 26	Nov 7	Mar 28	Nov 7
2012	Feb 26	Oct 8	Feb 26	Oct 28
2011	Apr 17	Nov 4	Mar 7	Nov 4
2010	Mar 23	Oct 29	Mar 23	Nov 5
2009	no data	Nov 18	no data	Nov 18
2008	Apr 15	Nov 8	Mar 9	Nov 16
2007	Apr 10	no data	Mar 6	no data
2006	no data	Nov 2	no data	Nov 30
2005	Apr 3	no data	Mar 18	no data
2004	Feb 27	Nov 3	Feb 26	Nov 30
2003	Apr 9	Nov 18	Mar 29	Nov 23
2002	Mar 26	Nov 5	Mar 22	Nov 26
2001	Mar 20	Nov 19	Feb 27	Nov 19
2000	Apr 4	Oct 8	Feb 12	Nov 13
1999	Apr 16	Nov 2	Mar 14	Nov 24
1998	Mar 21	Dec 7	Mar 20	Dec 8
1997	Apr 14	Oct 26	Apr 13	Nov 10
1996	Apr 5	Oct 23	Mar 25	Nov 24
1995	Apr 23	Oct 20	Mar 9	Nov 28
1994	Apr 6	Nov 15	Mar 9	Nov 27
1993	Mar 13	Oct 29	Mar 13	Oct 29
1992	Apr 2	Nov 4	Mar 11	Nov 4
1991	no data	Oct 31	no data	Nov 1
1990	Apr 7	Oct 21	Feb 17	Oct 21
1989	Apr 12	Oct 18	Apr 11	Oct 19
1988	Apr 19	Nov 17	Mar 20	Nov 17
1987	Apr 3	Nov 11	Apr 3	Nov 11
1986	Mar 21	Nov 11	Feb 22	Nov 11
1985	Mar 31	Nov 20	Feb 15	Dec 1
1984	Apr 17	Nov 11	Apr 5	Nov 22
1983	Apr 16	Oct 26	Apr 16	Nov 10
1982	Mar 8	Nov 4	Mar 8	Nov 4
1981	no data	Nov 10	no data	Dec 2
1980	Apr 15	Oct 25	Mar 19	Oct 30
1979	Mar 7	Nov 1	Mar 6	Nov 13
1978	no data	Nov 17	no data	Nov 28
1977	Mar 22	Nov 10	Mar 22	Nov 10
1976	Mar 31	Oct 20	Feb 24	Nov 13
1975	Apr 4	Nov 13	Apr 4	Nov 13
1974	Apr 6	Nov 15	Mar 24	Nov 25
1973	Apr 11	Nov 28	Apr 11	Dec 7
1972	Mar 31	Nov 22	Mar 30	Nov 22
1971	Apr 7	Nov 19	Apr 7	Dec 11
1970	Apr 5	Oct 29	Apr 2	Nov 5
1969	Mar 26	Nov 3	Mar 14	Nov 15
1968	Apr 5	Oct 28	Mar 24	Nov 9
1967	Mar 16	Nov 4	Mar 9	Nov 4
1966	Apr 5	Nov 2	Mar 24	Nov 2
1965	Mar 27	Nov 27	Mar 27	Nov 29
1964	Apr 9	Nov 20	Mar 27	Nov 20
1963	Mar 8	Nov 2	Mar 7	Nov 24
1962	Apr 3	Nov 4	Apr 2	Dec 9
1961	Apr 16	Nov 7	Mar 9	Dec 11
1960	Mar 19	Nov 6	Mar 18	Nov 10
1959	Apr 14	Oct 28	Mar 22	Nov 6
1958	Mar 26	Nov 2	Mar 20	Nov 19
1957	Apr 14	Oct 27	Mar 8	Nov 23
1956	Mar 17	Nov 9	Mar 16	Nov 9
1955	Mar 27	Oct 25	Mar 27	Nov 3
1954	Apr 1	Oct 31	Apr 1	Nov 5
1953	Apr 19	Nov 9	Feb 22	Nov 9
1952	Apr 10	Oct 8	Mar 28	Oct 29
1951	Mar 19	Nov 2	Mar 19	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 to 2020 frost probabilities.