Penwell, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00416932, 1964 to 2013, measured from daily minimum temperatures.

Elevation 2,933 ft, 31.736, -102.590. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 26	Nov 10
Earliest	Mar 1 (2004)	Oct 8 (1992)
Latest	May 3 (2013)	Dec 7 (1998)
Trend	0.9 days later per decade	little change (less than half a day per decade)
Years with data	35	33

At 28°F (hard freeze) the median last spring date is Mar 17 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
2013	May 3	no data	May 3	no data
2012	Mar 11	Nov 14	Mar 11	Dec 10
2011	Mar 31	Nov 3	Feb 14	Nov 3
2010	Apr 8	Nov 13	Mar 22	Nov 13
2009	no data	Oct 27	no data	Oct 30
2008	no data	Oct 23	no data	Nov 8
2004	Mar 1	no data	Feb 17	no data
2003	Mar 31	Nov 19	Mar 31	Nov 24
2002	Mar 26	Nov 18	Mar 5	Dec 10
2001	Mar 16	Nov 28	Feb 17	Nov 28
2000	Mar 19	Nov 8	Mar 17	Nov 9
1999	Mar 15	Nov 25	Feb 13	Nov 25
1998	Mar 20	Dec 7	Mar 13	Dec 8
1997	Apr 13	Oct 26	Apr 13	Nov 15
1996	Apr 15	Oct 22	Mar 26	Oct 23
1995	Apr 24	Nov 11	Mar 9	Nov 29
1994	Apr 7	Nov 10	Apr 6	Nov 28
1993	Mar 13	Oct 30	Mar 13	Oct 30
1992	Apr 3	Oct 8	Mar 10	Nov 5
1991	Apr 1	Oct 31	Feb 20	Oct 31
1990	Mar 26	Oct 22	Mar 26	Nov 5
1989	Mar 22	Oct 19	Mar 22	Nov 2
1988	Mar 21	Nov 16	Mar 21	Nov 20
1987	Apr 8	Nov 10	Apr 3	Nov 11
1986	Mar 20	Nov 13	Feb 22	Nov 13
1985	Mar 31	Nov 16	Mar 31	Dec 2
1984	Mar 29	Nov 11	Mar 6	Nov 23
1983	Apr 9	Nov 30	Apr 9	Dec 6
1982	no data	Nov 4	no data	Nov 4
1981	Mar 19	Nov 8	Feb 22	Dec 18
1980	Apr 14	Oct 29	Mar 18	Oct 29
1979	no data	Nov 11	no data	Nov 13
1971	Apr 6	no data	Mar 19	no data
1970	Apr 6	Oct 28	Apr 5	Oct 28
1969	no data	Nov 3	no data	Nov 3
1968	Mar 22	no data	Mar 22	no data
1967	Mar 8	no data	Mar 8	no data
1966	Mar 23	no data	Mar 5	no data
1965	Mar 26	no data	Mar 26	no data
1964	Mar 26	Nov 20	Feb 27	Nov 20

"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.