Frost history / Alabaster Shelby Co Ap, AL
Alabaster Shelby Co Ap, AL: frost dates by year
Last spring and first fall frost at NOAA station USW00053864, 1995 to 2024, measured from daily minimum temperatures.
Elevation 565 ft, 33.178, -86.782. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 16 | Nov 14 |
| Earliest | Feb 13 (2011) | Oct 10 (2000) |
| Latest | Apr 18 (1997) | Dec 2 (2004) |
| Trend | 7.6 days earlier per decade | 4.0 days later per decade |
| Years with data | 29 | 30 |
At 28°F (hard freeze) the median last spring date is Feb 20 and the median first fall date is Nov 27.
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 | Mar 19 | Nov 30 | Jan 22 | Dec 4 |
| 2023 | Mar 20 | Nov 1 | Mar 20 | Nov 29 |
| 2022 | Mar 13 | Nov 14 | Mar 13 | Nov 18 |
| 2021 | Feb 21 | Nov 27 | Feb 20 | none |
| 2020 | Feb 28 | Nov 30 | Jan 22 | Dec 1 |
| 2019 | Mar 7 | Nov 3 | Mar 6 | Nov 12 |
| 2018 | Mar 15 | Nov 15 | Jan 25 | Nov 27 |
| 2017 | Mar 16 | Nov 20 | Jan 9 | Dec 9 |
| 2016 | Feb 27 | Nov 20 | Feb 10 | Nov 27 |
| 2015 | Mar 7 | Nov 22 | Mar 7 | none |
| 2014 | Mar 26 | Nov 14 | Feb 28 | Nov 14 |
| 2013 | Mar 27 | Nov 13 | Feb 17 | Nov 14 |
| 2012 | Feb 13 | Nov 24 | Feb 13 | Nov 25 |
| 2011 | Feb 13 | Oct 30 | Feb 13 | Nov 11 |
| 2010 | Mar 7 | Nov 7 | Mar 6 | Nov 27 |
| 2009 | Apr 8 | Nov 27 | Mar 3 | Dec 5 |
| 2008 | Mar 25 | Oct 29 | Feb 28 | Nov 19 |
| 2007 | Apr 8 | Nov 7 | Feb 19 | Dec 4 |
| 2006 | Mar 26 | Nov 13 | Feb 27 | Dec 4 |
| 2005 | Mar 4 | Nov 17 | Mar 2 | Nov 18 |
| 2004 | Feb 28 | Dec 2 | Feb 8 | Dec 15 |
| 2003 | Mar 31 | Nov 24 | Feb 8 | Nov 30 |
| 2002 | Mar 23 | Nov 23 | Mar 6 | Nov 28 |
| 2001 | Mar 10 | Nov 21 | Feb 11 | Dec 25 |
| 2000 | Mar 13 | Oct 10 | Feb 7 | Nov 15 |
| 1999 | Mar 16 | Nov 3 | Mar 4 | Dec 7 |
| 1998 | Mar 22 | Nov 6 | Mar 13 | Dec 18 |
| 1997 | Apr 18 | Nov 15 | Feb 16 | Nov 16 |
| 1996 | Apr 11 | Nov 3 | Apr 10 | Nov 3 |
| 1995 | no data | Nov 8 | no data | Nov 12 |
"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.