Frost history / Montgomery 6SW, AL
Montgomery 6SW, AL: frost dates by year
Last spring and first fall frost at NOAA station USC00015553, 2000 to 2025, measured from daily minimum temperatures.
Elevation 225 ft, 32.260, -86.218. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 13 | Nov 6 |
| Earliest | Jan 31 (2018) | Oct 17 (2024) |
| Latest | Apr 9 (2000) | Dec 1 (2020) |
| Trend | 11.0 days earlier per decade | 3.2 days earlier per decade |
| Years with data | 23 | 22, 1 with no freeze |
At 28°F (hard freeze) the median last spring date is Mar 3 and the median first fall date is Nov 13.
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 | Mar 21 | Oct 31 | Feb 22 | Nov 11 |
| 2024 | Mar 19 | Oct 17 | Feb 20 | Nov 30 |
| 2023 | Mar 21 | Nov 2 | Mar 21 | Nov 2 |
| 2022 | Mar 13 | Oct 19 | Jan 23 | Oct 20 |
| 2021 | Feb 17 | none | Feb 16 | none |
| 2020 | Feb 2 | Dec 1 | Jan 22 | Dec 2 |
| 2019 | Jan 31 | Nov 3 | none | Nov 9 |
| 2018 | Jan 31 | Nov 28 | Jan 19 | none |
| 2017 | no data | Nov 20 | no data | Dec 10 |
| 2016 | Feb 27 | Nov 20 | Feb 11 | Nov 21 |
| 2015 | Mar 8 | Nov 23 | Mar 7 | none |
| 2014 | Mar 26 | Nov 2 | Mar 26 | Nov 2 |
| 2013 | Mar 28 | Oct 26 | Mar 27 | Nov 13 |
| 2012 | Feb 13 | Nov 8 | Feb 13 | Nov 25 |
| 2011 | Feb 14 | Oct 21 | Feb 13 | Oct 30 |
| 2010 | Mar 8 | Nov 6 | Mar 7 | Nov 6 |
| 2009 | Apr 8 | Nov 19 | Mar 3 | Dec 6 |
| 2008 | Mar 26 | Oct 28 | Mar 25 | Oct 29 |
| 2007 | Apr 8 | Nov 7 | Mar 5 | Nov 8 |
| 2006 | Mar 27 | no data | Mar 26 | no data |
| 2005 | Mar 4 | Oct 26 | Mar 2 | Nov 18 |
| 2004 | Mar 23 | Nov 26 | Mar 11 | Dec 14 |
| 2003 | no data | Nov 14 | no data | Nov 25 |
| 2001 | Mar 10 | no data | Mar 10 | no data |
| 2000 | Apr 9 | no data | Feb 21 | no data |
"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.