Frost history / Karnes City 2N, TX
Karnes City 2N, TX: frost dates by year
Last spring and first fall frost at NOAA station USC00414696, 1977 to 2006, measured from daily minimum temperatures.
Elevation 450 ft, 28.907, -97.876. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 27 | Dec 7 |
| Earliest | Jan 11 (1999) | Oct 31 (1993) |
| Latest | Mar 31 (1987) | Dec 22 (1998) |
| Trend | 5.4 days earlier per decade | 1.5 days later per decade |
| Years with data | 17, 2 with no freeze | 20 |
At 28°F (hard freeze) the median last spring date is Feb 12 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 |
|---|---|---|---|---|
| 2006 | Feb 20 | no data | Feb 11 | no data |
| 2003 | Feb 27 | Nov 30 | Feb 26 | none |
| 2002 | Mar 5 | Dec 6 | Mar 5 | none |
| 2000 | Jan 31 | no data | Jan 31 | no data |
| 1999 | Jan 11 | Dec 7 | Jan 5 | none |
| 1998 | none | Dec 22 | none | Dec 23 |
| 1997 | no data | Dec 13 | no data | Dec 13 |
| 1996 | Mar 10 | Dec 18 | Mar 10 | Dec 19 |
| 1995 | no data | Dec 10 | no data | Dec 10 |
| 1994 | Feb 11 | no data | Feb 10 | no data |
| 1993 | no data | Oct 31 | no data | Nov 27 |
| 1991 | no data | Nov 8 | no data | none |
| 1990 | none | Dec 3 | none | Dec 4 |
| 1989 | no data | Dec 11 | no data | Dec 12 |
| 1988 | Mar 18 | no data | Feb 12 | no data |
| 1987 | Mar 31 | Dec 14 | none | Dec 14 |
| 1986 | Feb 12 | no data | Feb 12 | no data |
| 1985 | no data | Dec 13 | no data | Dec 15 |
| 1984 | Feb 28 | Nov 28 | Jan 21 | Dec 7 |
| 1983 | no data | Dec 7 | no data | Dec 19 |
| 1981 | Feb 12 | Dec 5 | Feb 12 | Dec 18 |
| 1980 | Mar 3 | Nov 19 | Mar 3 | Dec 25 |
| 1979 | Feb 19 | Nov 14 | Feb 10 | Nov 30 |
| 1978 | Mar 9 | Dec 9 | Feb 19 | Dec 9 |
| 1977 | no data | Dec 22 | no data | Dec 22 |
"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.