Frost history / Port Mansfield, TX
Port Mansfield, TX: frost dates by year
Last spring and first fall frost at NOAA station USC00417184, 1958 to 2025, measured from daily minimum temperatures.
Elevation 9 ft, 26.558, -97.426. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 1 | Dec 13 |
| Earliest | Jan 6 (1959) | Oct 31 (1993) |
| Latest | Mar 6 (1989) | Dec 30 (2003) |
| Trend | 1.0 days later per decade | 0.7 days later per decade |
| Years with data | 55, 21 with no freeze | 54, 33 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 20 and the median first fall date is Dec 17.
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 | Feb 21 | none | Jan 23 | none |
| 2024 | Jan 18 | none | Jan 17 | none |
| 2023 | none | none | none | none |
| 2022 | Feb 5 | no data | none | no data |
| 2021 | Feb 20 | no data | Feb 18 | no data |
| 2018 | Jan 18 | no data | Jan 17 | no data |
| 2017 | Jan 9 | no data | Jan 9 | no data |
| 2016 | none | none | none | none |
| 2015 | none | none | none | none |
| 2014 | Jan 29 | none | none | none |
| 2013 | none | none | none | none |
| 2012 | none | none | none | none |
| 2011 | Feb 10 | Dec 7 | Feb 4 | none |
| 2010 | Jan 10 | none | Jan 10 | none |
| 2009 | no data | Dec 5 | no data | none |
| 2008 | none | none | none | none |
| 2007 | none | none | none | none |
| 2006 | no data | none | no data | none |
| 2005 | none | none | none | none |
| 2004 | no data | Dec 26 | no data | none |
| 2003 | no data | Dec 30 | no data | none |
| 2002 | no data | none | no data | none |
| 2001 | no data | none | no data | none |
| 2000 | none | no data | none | no data |
| 1999 | Feb 14 | no data | none | no data |
| 1998 | none | none | none | none |
| 1997 | Jan 15 | none | none | none |
| 1996 | Feb 5 | no data | none | no data |
| 1995 | none | no data | none | no data |
| 1994 | none | none | none | none |
| 1993 | no data | Oct 31 | no data | none |
| 1992 | none | none | none | none |
| 1991 | none | none | none | none |
| 1990 | none | Dec 23 | none | Dec 23 |
| 1989 | Mar 6 | Dec 13 | Feb 7 | Dec 13 |
| 1988 | none | none | none | none |
| 1986 | none | no data | none | no data |
| 1985 | Feb 3 | Dec 14 | Feb 3 | none |
| 1984 | none | none | none | none |
| 1982 | Feb 8 | none | Feb 7 | none |
| 1981 | Feb 12 | none | Feb 12 | none |
| 1980 | Mar 2 | none | none | none |
| 1979 | Jan 15 | Dec 18 | Jan 4 | none |
| 1978 | Jan 20 | Dec 10 | none | Dec 10 |
| 1977 | Jan 20 | Dec 22 | Jan 10 | none |
| 1976 | Jan 9 | Nov 29 | Jan 9 | none |
| 1975 | no data | none | no data | none |
| 1974 | Feb 10 | Dec 1 | none | none |
| 1973 | Feb 11 | Dec 20 | Feb 11 | Dec 21 |
| 1972 | Jan 6 | Dec 7 | Jan 6 | none |
| 1971 | Feb 9 | none | none | none |
| 1970 | Jan 7 | Nov 24 | Jan 7 | none |
| 1969 | Jan 6 | none | none | none |
| 1968 | Jan 14 | none | none | none |
| 1967 | Feb 9 | no data | none | no data |
| 1966 | none | Dec 12 | none | Dec 13 |
| 1965 | none | none | none | none |
| 1964 | Jan 17 | Dec 18 | none | none |
| 1963 | Feb 14 | Dec 23 | Jan 25 | Dec 24 |
| 1962 | Jan 13 | none | Jan 12 | none |
| 1961 | none | none | none | none |
| 1960 | Feb 26 | none | Feb 26 | none |
| 1959 | Jan 6 | Nov 18 | none | none |
| 1958 | no data | Dec 16 | no data | none |
"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.