Frost history / Crystal City, TX
Crystal City, TX: frost dates by year
Last spring and first fall frost at NOAA station USC00412160, 1951 to 2008, measured from daily minimum temperatures.
Elevation 580 ft, 28.679, -99.831. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 23 | Dec 1 |
| Earliest | Jan 3 (1983) | Oct 30 (1980) |
| Latest | Apr 9 (1973) | Dec 26 (2001) |
| Trend | 2.6 days earlier per decade | 1.9 days later per decade |
| Years with data | 57, 1 with no freeze | 58, 5 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 7 and the median first fall date is Dec 14.
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 |
|---|---|---|---|---|
| 2008 | Mar 4 | Dec 6 | Feb 1 | none |
| 2007 | Mar 5 | Dec 16 | none | Dec 16 |
| 2006 | Feb 12 | Dec 1 | Feb 12 | Dec 1 |
| 2005 | Jan 17 | Nov 29 | none | Nov 29 |
| 2004 | Feb 15 | Dec 1 | none | Dec 15 |
| 2003 | Mar 30 | Nov 24 | Jan 18 | Nov 29 |
| 2002 | Mar 4 | Dec 6 | Mar 4 | none |
| 2001 | Feb 3 | Dec 26 | none | none |
| 2000 | Jan 30 | Dec 7 | Jan 30 | Dec 22 |
| 1999 | Feb 13 | Dec 6 | Feb 13 | Dec 6 |
| 1998 | Jan 24 | Dec 26 | none | Dec 26 |
| 1997 | Jan 30 | Dec 13 | none | Dec 13 |
| 1996 | Mar 10 | Dec 18 | Feb 4 | Dec 19 |
| 1995 | Mar 8 | none | none | none |
| 1994 | Feb 2 | none | Feb 2 | none |
| 1993 | Mar 13 | Oct 31 | none | Nov 27 |
| 1992 | Jan 16 | Nov 26 | none | Nov 27 |
| 1991 | Feb 1 | Nov 24 | none | none |
| 1990 | none | Dec 5 | none | Dec 23 |
| 1989 | Mar 7 | Dec 12 | Feb 6 | Dec 13 |
| 1988 | Mar 19 | none | Jan 25 | none |
| 1987 | Mar 31 | Nov 20 | Jan 19 | Dec 29 |
| 1986 | Feb 12 | Dec 12 | none | none |
| 1985 | no data | Dec 13 | no data | Dec 14 |
| 1984 | Jan 19 | Nov 28 | Jan 19 | none |
| 1983 | Jan 3 | Dec 17 | none | Dec 22 |
| 1982 | Mar 7 | Nov 4 | Feb 7 | none |
| 1981 | Feb 12 | Dec 18 | Feb 12 | Dec 18 |
| 1980 | Mar 3 | Oct 30 | Mar 2 | none |
| 1979 | Feb 19 | Nov 23 | Jan 24 | Nov 30 |
| 1978 | Mar 4 | Dec 9 | Feb 19 | Dec 9 |
| 1977 | Jan 29 | Dec 21 | Jan 19 | Dec 22 |
| 1976 | Feb 23 | Nov 14 | Feb 23 | Nov 29 |
| 1975 | Feb 7 | Nov 23 | Jan 14 | none |
| 1974 | Feb 26 | Nov 30 | Feb 9 | Nov 30 |
| 1973 | Apr 9 | Nov 29 | Feb 10 | Dec 21 |
| 1972 | Feb 9 | Nov 26 | Feb 4 | Dec 16 |
| 1971 | Mar 4 | Dec 3 | Feb 10 | none |
| 1970 | Feb 3 | Nov 5 | Feb 3 | Nov 24 |
| 1969 | Jan 12 | Nov 19 | Jan 5 | Nov 20 |
| 1968 | Mar 22 | Dec 1 | Jan 14 | Dec 23 |
| 1967 | Feb 22 | Dec 3 | Feb 7 | Dec 23 |
| 1966 | Mar 6 | Nov 29 | Jan 30 | Dec 11 |
| 1965 | Mar 20 | none | Mar 4 | none |
| 1964 | Feb 22 | Dec 14 | Feb 8 | none |
| 1963 | Feb 14 | Nov 30 | Feb 14 | Dec 23 |
| 1962 | Mar 2 | none | Mar 2 | none |
| 1961 | Feb 25 | Dec 13 | Feb 7 | Dec 28 |
| 1960 | Mar 18 | Dec 16 | Feb 26 | Dec 21 |
| 1959 | Mar 6 | Nov 7 | Jan 22 | Nov 7 |
| 1958 | Feb 16 | Dec 11 | Feb 13 | Dec 14 |
| 1957 | Jan 18 | Nov 23 | Jan 18 | Dec 1 |
| 1956 | Mar 8 | Nov 27 | Feb 11 | none |
| 1955 | Mar 28 | Dec 9 | Mar 28 | Dec 9 |
| 1954 | Feb 8 | Nov 6 | Jan 22 | none |
| 1953 | Feb 22 | Dec 7 | Jan 17 | Dec 15 |
| 1952 | Mar 24 | Dec 11 | Feb 7 | none |
| 1951 | Mar 13 | Nov 3 | Mar 13 | 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.