Frost history / Northport 2 S, AL
Northport 2 S, AL: frost dates by year
Last spring and first fall frost at NOAA station USW00073801, 2009 to 2024, measured from daily minimum temperatures.
Elevation 150 ft, 33.212, -87.591. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 15 | Nov 13 |
| Earliest | Feb 25 (2012) | Oct 19 (2022) |
| Latest | Apr 16 (2014) | Nov 30 (2020) |
| Trend | 6.9 days later per decade | 2.0 days later per decade |
| Years with data | 14 | 15 |
At 28°F (hard freeze) the median last spring date is Mar 7 and the median first fall date is Nov 23.
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 | no data | Nov 29 | no data | Nov 30 |
| 2023 | Mar 21 | no data | Mar 20 | no data |
| 2022 | Mar 14 | Oct 19 | Mar 13 | Nov 17 |
| 2021 | Apr 2 | Nov 14 | Feb 21 | Nov 27 |
| 2020 | Feb 28 | Nov 30 | Feb 22 | Nov 30 |
| 2019 | Mar 19 | Nov 1 | Mar 7 | Nov 12 |
| 2018 | Apr 8 | Nov 11 | Jan 31 | Nov 27 |
| 2017 | Mar 16 | Nov 20 | Mar 16 | Nov 23 |
| 2016 | Feb 27 | Nov 20 | Feb 11 | Nov 20 |
| 2015 | Mar 8 | Nov 22 | Mar 7 | Nov 23 |
| 2014 | Apr 16 | Nov 2 | Mar 26 | Nov 14 |
| 2013 | Mar 28 | Nov 8 | Mar 27 | Nov 13 |
| 2012 | Feb 25 | Nov 13 | Feb 13 | Nov 25 |
| 2011 | Mar 11 | Oct 30 | Feb 13 | Nov 11 |
| 2010 | Mar 7 | Nov 6 | Mar 6 | Nov 27 |
| 2009 | no data | Nov 27 | no data | Dec 5 |
"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.