Frost history / Granger Dam, TX
Granger Dam, TX: frost dates by year
Last spring and first fall frost at NOAA station USC00413686, 1980 to 2017, measured from daily minimum temperatures.
Elevation 555 ft, 30.719, -97.321. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 5 | Nov 28 |
| Earliest | Jan 9 (2017) | Oct 30 (1980) |
| Latest | Apr 21 (2013) | Dec 22 (1998) |
| Trend | 1.5 days earlier per decade | 1.0 days later per decade |
| Years with data | 29 | 31 |
At 28°F (hard freeze) the median last spring date is Feb 13 and the median first fall date is Dec 8.
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 |
|---|---|---|---|---|
| 2017 | Jan 9 | Dec 8 | Jan 9 | Dec 8 |
| 2016 | Feb 7 | Dec 9 | Feb 4 | Dec 9 |
| 2015 | Mar 7 | Nov 22 | Mar 6 | none |
| 2014 | Mar 5 | Nov 13 | Mar 4 | Nov 14 |
| 2013 | Apr 21 | Nov 13 | Jan 16 | Dec 7 |
| 2012 | Feb 14 | Nov 13 | Feb 14 | Dec 11 |
| 2010 | Mar 21 | no data | Feb 17 | no data |
| 2009 | Feb 22 | Dec 5 | Feb 5 | Dec 5 |
| 2008 | no data | Nov 15 | no data | Nov 18 |
| 2006 | Mar 24 | no data | Mar 24 | no data |
| 2003 | Feb 27 | Nov 24 | Feb 26 | Dec 6 |
| 2002 | Mar 5 | Nov 29 | Mar 3 | none |
| 2001 | Feb 18 | Nov 29 | Feb 10 | none |
| 2000 | Jan 30 | Dec 7 | Jan 30 | Dec 12 |
| 1999 | Feb 13 | Dec 6 | Jan 15 | Dec 6 |
| 1998 | Mar 22 | Dec 22 | Mar 22 | Dec 22 |
| 1997 | Jan 31 | Nov 16 | Jan 30 | Dec 13 |
| 1996 | Mar 21 | Nov 25 | Mar 10 | Dec 18 |
| 1995 | Mar 9 | Nov 29 | Mar 9 | Dec 9 |
| 1994 | Mar 10 | Dec 11 | Feb 15 | none |
| 1993 | Mar 14 | Oct 31 | Jan 27 | Oct 31 |
| 1992 | Jan 21 | Nov 5 | Jan 17 | Nov 27 |
| 1991 | Feb 3 | Nov 2 | Jan 1 | Nov 4 |
| 1990 | Jan 30 | Dec 4 | Jan 13 | Dec 5 |
| 1989 | Mar 9 | Dec 4 | Mar 8 | Dec 9 |
| 1988 | no data | Nov 28 | no data | Dec 28 |
| 1987 | Apr 3 | Dec 15 | Jan 20 | Dec 15 |
| 1986 | Feb 13 | Nov 13 | Feb 13 | Nov 13 |
| 1985 | Feb 13 | no data | Feb 12 | no data |
| 1984 | no data | Nov 22 | no data | none |
| 1983 | Mar 22 | Dec 19 | Mar 21 | Dec 19 |
| 1982 | no data | Nov 4 | no data | Nov 15 |
| 1981 | Mar 19 | Dec 5 | Feb 13 | Dec 18 |
| 1980 | no data | Oct 30 | no data | Dec 25 |
"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.