Slidell, LA: frost dates by year

Last spring and first fall frost at NOAA station USC00168539, 1956 to 2025, measured from daily minimum temperatures.

Elevation 10 ft, 30.265, -89.770. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Feb 28	Nov 26
Earliest	Jan 9 (2017)	Oct 20 (1989)
Latest	Apr 5 (1987)	Dec 26 (2001)
Trend	1.2 days earlier per decade	1.3 days later per decade
Years with data	67	67, 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 10.

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	no data	Nov 11	no data	Nov 12
2024	Jan 22	none	Jan 21	none
2023	Mar 20	none	none	none
2022	Mar 13	Nov 18	Jan 24	Dec 23
2021	Feb 22	no data	Feb 20	no data
2020	Jan 21	Dec 1	none	none
2019	Mar 5	Nov 13	none	Nov 13
2018	Jan 20	Nov 15	Jan 19	none
2017	Jan 9	Dec 9	Jan 9	none
2016	Feb 10	Dec 10	Jan 24	none
2015	Mar 7	none	Feb 18	none
2014	Mar 4	Nov 14	Jan 31	Nov 18
2013	Mar 3	Nov 28	none	none
2012	Feb 13	Dec 22	Jan 14	none
2011	Feb 13	Nov 11	Feb 12	none
2010	Mar 4	Nov 27	Feb 25	Dec 7
2009	no data	Nov 27	no data	Dec 29
2008	Feb 28	Nov 26	Jan 21	none
2007	Mar 5	no data	Feb 16	no data
2006	Feb 13	Nov 21	Feb 13	Dec 5
2005	Mar 18	no data	Jan 24	no data
2004	Feb 18	Dec 15	Feb 8	Dec 24
2003	Mar 31	Nov 25	Jan 25	Nov 25
2002	Mar 5	Nov 29	Mar 4	none
2001	Feb 4	Dec 26	Jan 23	Dec 26
2000	Feb 7	Nov 22	Feb 6	Nov 22
1999	Mar 4	Dec 1	Feb 22	Dec 16
1998	Mar 13	Dec 16	none	none
1997	Feb 16	Nov 17	Jan 19	Dec 28
1996	Mar 22	Dec 19	Mar 10	Dec 19
1995	Feb 13	Dec 10	Jan 24	Dec 10
1994	Feb 14	Dec 12	Jan 19	none
1993	Mar 15	Oct 31	Mar 14	Dec 31
1992	Feb 10	Nov 29	Jan 21	none
1991	Feb 16	Nov 4	Feb 16	Nov 5
1990	Jan 26	Nov 30	none	Dec 24
1989	Feb 25	Oct 20	Feb 24	Dec 4
1988	Mar 16	Dec 2	Mar 15	Dec 18
1987	Apr 5	Nov 13	Jan 27	Dec 17
1986	Mar 22	none	Mar 22	none
1985	Feb 16	Dec 3	Feb 13	Dec 14
1984	Mar 7	Nov 24	Feb 7	Dec 7
1983	Mar 12	Nov 25	none	Dec 24
1982	Mar 8	Dec 12	Jan 18	Dec 13
1981	Feb 13	Nov 21	Feb 13	Dec 19
1980	Mar 4	Nov 19	Mar 4	Dec 26
1979	Feb 27	Nov 15	Feb 12	Nov 30
1978	Mar 5	Dec 5	Feb 23	Dec 10
1977	Feb 28	Nov 11	Feb 16	Dec 10
1976	Feb 23	Nov 6	Feb 8	Nov 23
1975	Mar 5	Nov 14	Feb 8	Dec 19
1974	Feb 28	Nov 26	Feb 28	Dec 3
1973	Feb 17	Dec 8	Feb 11	Dec 8
1972	Feb 9	Dec 1	Feb 4	Dec 17
1971	Apr 3	none	Mar 4	none
1970	no data	Nov 17	no data	Nov 24
1969	Mar 13	Nov 15	Jan 12	Nov 15
1968	Mar 24	Nov 20	Mar 1	Dec 15
1967	Feb 27	Dec 4	Feb 25	Dec 29
1966	Mar 7	Nov 3	Feb 5	Nov 3
1965	Mar 21	Dec 1	Feb 25	none
1964	Feb 28	Nov 22	Feb 23	Dec 1
1963	Feb 27	Nov 14	Feb 22	Dec 15
1962	Mar 6	Dec 6	Mar 6	Dec 12
1961	Feb 9	Nov 30	Jan 31	Dec 24
1960	Mar 6	Dec 1	Mar 6	Dec 2
1959	Feb 21	Nov 7	Jan 23	Nov 18
1958	Feb 21	Nov 29	Feb 18	Dec 14
1957	Jan 19	Oct 28	Jan 19	Dec 1
1956	Jan 20	Nov 10	Jan 14	Nov 23

"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.