Frost history / Armstrong 4SE, TX
Armstrong 4SE, TX: frost dates by year
Last spring and first fall frost at NOAA station USC00410345, 2005 to 2025, measured from daily minimum temperatures.
Elevation 25 ft, 26.834, -97.708. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 14 | Dec 16 |
| Earliest | Jan 15 (2012) | Nov 15 (2008) |
| Latest | Mar 25 (2006) | Dec 30 (2023) |
| Trend | 9.8 days earlier per decade | 19.5 days later per decade |
| Years with data | 13 | 16, 5 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 12 and the median first fall date is Dec 7.
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 24 | none | Feb 21 | none |
| 2024 | Jan 18 | none | Jan 18 | none |
| 2023 | Feb 12 | Dec 30 | Feb 12 | none |
| 2022 | Mar 2 | Dec 22 | Feb 6 | Dec 22 |
| 2021 | no data | none | no data | none |
| 2016 | no data | Dec 19 | no data | none |
| 2015 | no data | none | no data | none |
| 2014 | Feb 13 | Dec 25 | none | none |
| 2013 | Jan 18 | Dec 16 | none | none |
| 2012 | Jan 15 | Dec 22 | Jan 13 | none |
| 2011 | Feb 14 | no data | Feb 12 | no data |
| 2010 | Mar 20 | Nov 27 | Jan 11 | Nov 28 |
| 2009 | Mar 2 | Dec 4 | Mar 2 | Dec 4 |
| 2008 | Feb 1 | Nov 15 | Jan 2 | Dec 10 |
| 2007 | Mar 6 | Dec 3 | Mar 5 | Dec 15 |
| 2006 | Mar 25 | Dec 1 | Feb 13 | Dec 1 |
| 2005 | no data | none | 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.