Alvin, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00410204, 1966 to 2010, measured from daily minimum temperatures.

Elevation 28 ft, 29.365, -95.234. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Feb 27	Dec 4
Earliest	Jan 5 (2000)	Nov 2 (1966)
Latest	Mar 31 (1987)	Dec 24 (2004)
Trend	0.8 days earlier per decade	2.4 days later per decade
Years with data	29, 1 with no freeze	28, 2 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 7 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
2010	Feb 26	no data	Jan 12	no data
2009	Mar 2	Dec 5	Jan 22	Dec 5
2008	Feb 2	Dec 2	Jan 3	Dec 12
2007	Mar 5	Nov 16	Feb 17	Dec 4
2006	Feb 13	Dec 1	Feb 13	Dec 5
2005	no data	Dec 6	no data	none
2004	Feb 17	Dec 24	none	Dec 25
2000	Jan 5	no data	Jan 5	no data
1996	Mar 20	Dec 17	Feb 4	Dec 18
1991	no data	Nov 4	no data	none
1990	none	no data	none	no data
1989	Mar 5	no data	Feb 9	no data
1988	Feb 13	Dec 17	Feb 13	none
1987	Mar 31	Dec 17	Jan 24	none
1986	Mar 1	none	Feb 13	none
1985	Feb 13	Dec 2	Feb 3	Dec 14
1984	Feb 28	Dec 7	Feb 7	Dec 7
1983	Jan 23	Dec 7	none	Dec 22
1982	Mar 8	Dec 13	Feb 7	Dec 13
1981	Feb 15	Dec 18	Feb 13	Dec 19
1980	Mar 4	Nov 19	Mar 4	none
1979	Feb 11	Nov 29	Feb 10	Nov 30
1978	Mar 11	Dec 9	Feb 20	Dec 9
1977	Jan 30	no data	Jan 20	no data
1976	no data	Nov 16	no data	none
1975	no data	Nov 23	no data	Nov 26
1973	Feb 11	Dec 10	Feb 11	Dec 21
1972	no data	Dec 1	no data	Dec 16
1971	Mar 4	none	Mar 4	none
1970	Feb 11	no data	Feb 4	no data
1969	Jan 6	Nov 15	Jan 6	Nov 15
1968	Mar 22	Nov 12	Mar 2	none
1967	Mar 7	Dec 23	Feb 8	Dec 23
1966	Mar 6	Nov 2	Jan 31	Dec 11

"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.