Frost history / Columbia Lock, LA
Columbia Lock, LA: frost dates by year
Last spring and first fall frost at NOAA station USC00161979, 2000 to 2025, measured from daily minimum temperatures.
Elevation 82 ft, 32.167, -92.108. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 28 | Nov 21 |
| Earliest | Jan 28 (2017) | Nov 3 (2023) |
| Latest | Mar 28 (2013) | Dec 9 (2016) |
| Trend | 0.9 days later per decade | 2.8 days earlier per decade |
| Years with data | 24 | 24, 1 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 13 and the median first fall date is Dec 5.
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 22 | Nov 11 | Feb 22 | Dec 15 |
| 2024 | Feb 20 | Nov 30 | Jan 22 | Dec 7 |
| 2023 | Mar 21 | Nov 3 | none | none |
| 2022 | Mar 15 | Nov 14 | Feb 14 | Dec 20 |
| 2021 | Mar 4 | none | Feb 22 | none |
| 2020 | Feb 28 | Dec 1 | Feb 8 | Dec 2 |
| 2019 | Mar 7 | Nov 10 | Mar 6 | Nov 13 |
| 2018 | no data | Nov 14 | no data | Nov 15 |
| 2017 | Jan 28 | Nov 23 | Jan 10 | Dec 9 |
| 2016 | Feb 6 | Dec 9 | Jan 29 | Dec 10 |
| 2015 | Mar 8 | Nov 23 | Mar 8 | none |
| 2014 | Mar 8 | Nov 14 | Mar 5 | Nov 14 |
| 2013 | Mar 28 | Nov 13 | Mar 26 | Nov 14 |
| 2012 | Feb 13 | Nov 25 | Feb 13 | Dec 30 |
| 2011 | Feb 13 | Nov 18 | Feb 12 | Dec 8 |
| 2010 | Mar 6 | Nov 27 | Feb 26 | Dec 7 |
| 2009 | Mar 4 | Dec 5 | Feb 6 | Dec 5 |
| 2008 | no data | Nov 16 | no data | Nov 22 |
| 2007 | Mar 7 | Nov 16 | Feb 19 | Dec 17 |
| 2006 | Feb 28 | no data | Feb 28 | no data |
| 2005 | Feb 26 | no data | Jan 25 | no data |
| 2004 | Feb 19 | Dec 1 | Feb 8 | Dec 2 |
| 2003 | Feb 26 | Nov 24 | Jan 28 | Nov 25 |
| 2002 | Mar 24 | Nov 28 | Mar 5 | Nov 29 |
| 2001 | Feb 19 | Nov 21 | Feb 4 | Dec 27 |
| 2000 | Feb 20 | Nov 14 | Feb 7 | Nov 21 |
"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.