Frost history / Austin Bergstrom Ap, TX
Austin Bergstrom Ap, TX: frost dates by year
Last spring and first fall frost at NOAA station USW00013904, 1951 to 2024, measured from daily minimum temperatures.
Elevation 480 ft, 30.183, -97.680. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 12 | Nov 18 |
| Earliest | Jan 18 (1957) | Oct 25 (2005) |
| Latest | Apr 17 (1999) | Dec 30 (1954) |
| Trend | 1.9 days later per decade | 2.5 days earlier per decade |
| Years with data | 49 | 47 |
At 28°F (hard freeze) the median last spring date is Feb 21 and the median first fall date is Dec 10.
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 |
|---|---|---|---|---|
| 2024 | Feb 19 | Dec 12 | Jan 20 | Dec 12 |
| 2023 | Feb 18 | Nov 2 | Feb 18 | Dec 11 |
| 2022 | Mar 13 | Nov 13 | Mar 13 | Dec 18 |
| 2021 | Feb 20 | Nov 23 | Feb 20 | Dec 12 |
| 2020 | Feb 28 | Nov 16 | Feb 27 | Dec 1 |
| 2019 | Apr 2 | Oct 31 | Mar 6 | Nov 1 |
| 2018 | Feb 12 | Nov 14 | Jan 30 | Nov 14 |
| 2017 | Jan 30 | Oct 29 | Jan 8 | Dec 13 |
| 2016 | Mar 21 | Dec 1 | Feb 7 | Dec 18 |
| 2015 | Mar 6 | Nov 22 | Mar 6 | Nov 23 |
| 2014 | Apr 16 | Nov 13 | Mar 3 | Nov 14 |
| 2013 | Mar 27 | Nov 13 | Mar 26 | Nov 14 |
| 2012 | Mar 4 | Nov 17 | Jan 15 | Dec 11 |
| 2011 | Mar 11 | Nov 3 | Mar 6 | Nov 4 |
| 2010 | Mar 22 | Oct 30 | Feb 25 | Nov 19 |
| 2009 | Apr 7 | Nov 18 | Apr 7 | Dec 4 |
| 2008 | Apr 14 | Nov 15 | Mar 8 | Nov 16 |
| 2007 | Mar 6 | Nov 16 | Mar 6 | Dec 4 |
| 2006 | Mar 26 | Nov 17 | Mar 25 | Nov 17 |
| 2005 | Mar 17 | Oct 25 | Jan 17 | Nov 17 |
| 2004 | Feb 27 | Nov 30 | Feb 27 | Dec 1 |
| 2003 | Mar 30 | Nov 24 | Feb 25 | Nov 24 |
| 2002 | Mar 23 | Nov 23 | Mar 5 | Dec 6 |
| 2001 | Mar 20 | Nov 28 | Feb 18 | Dec 10 |
| 2000 | Mar 20 | Nov 9 | Feb 6 | Nov 14 |
| 1999 | Apr 17 | Nov 3 | Feb 22 | Nov 26 |
| 1998 | Mar 22 | Dec 13 | Mar 11 | Dec 22 |
| 1994 | Feb 14 | no data | Feb 11 | no data |
| 1993 | Mar 14 | no data | Jan 26 | no data |
| 1970 | Mar 22 | Nov 16 | Feb 4 | Nov 24 |
| 1969 | Mar 12 | Nov 15 | Jan 12 | Dec 31 |
| 1968 | Mar 23 | Nov 12 | Mar 13 | Dec 15 |
| 1967 | Mar 8 | Dec 22 | Feb 23 | Dec 23 |
| 1966 | Mar 7 | Nov 3 | Mar 6 | Dec 11 |
| 1965 | Mar 21 | Nov 30 | Mar 21 | none |
| 1964 | Feb 22 | Nov 22 | Jan 17 | Dec 6 |
| 1963 | Feb 22 | Nov 24 | Feb 13 | Dec 15 |
| 1962 | Mar 16 | Dec 11 | Mar 2 | Dec 12 |
| 1961 | Feb 8 | Dec 12 | Jan 29 | Dec 13 |
| 1960 | Mar 4 | Dec 17 | Feb 26 | Dec 21 |
| 1959 | Jan 23 | Nov 6 | Jan 22 | Nov 18 |
| 1958 | Feb 16 | Nov 29 | Feb 16 | Dec 14 |
| 1957 | Jan 18 | Nov 30 | Jan 18 | Dec 11 |
| 1956 | Mar 8 | Nov 27 | Feb 5 | none |
| 1955 | Mar 28 | Nov 28 | Mar 28 | Dec 16 |
| 1954 | Feb 8 | Dec 30 | Jan 22 | Dec 30 |
| 1953 | Feb 22 | Dec 10 | Jan 17 | Dec 23 |
| 1952 | Mar 24 | Dec 11 | none | Dec 15 |
| 1951 | Mar 13 | Nov 2 | Feb 16 | 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.