Frost history / Archbold Bio Stn, FL
Archbold Bio Stn, FL: frost dates by year
Last spring and first fall frost at NOAA station USC00080236, 1969 to 2025, measured from daily minimum temperatures.
Elevation 140 ft, 27.182, -81.351. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 2 | Dec 9 |
| Earliest | Jan 15 (1975) | Nov 15 (1975) |
| Latest | Apr 25 (2005) | Dec 31 (2025) |
| Trend | 0.7 days later per decade | little change (less than half a day per decade) |
| Years with data | 57, 2 with no freeze | 57, 12 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 14 and the median first fall date is Dec 20.
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 23 | Dec 31 | Mar 7 | Dec 31 |
| 2024 | Feb 22 | Nov 24 | none | Dec 3 |
| 2023 | Feb 14 | none | Jan 16 | none |
| 2022 | Feb 10 | Dec 24 | Jan 31 | none |
| 2021 | Feb 5 | none | Feb 4 | none |
| 2020 | Mar 1 | Dec 2 | none | none |
| 2019 | none | Dec 3 | none | none |
| 2018 | Mar 16 | none | Mar 15 | none |
| 2017 | Feb 17 | Dec 11 | none | none |
| 2016 | Feb 27 | Nov 21 | none | none |
| 2015 | Feb 20 | none | Feb 14 | none |
| 2014 | Feb 16 | Dec 10 | Jan 23 | none |
| 2013 | Mar 28 | none | Mar 5 | none |
| 2012 | Jan 16 | Nov 24 | Jan 16 | Dec 23 |
| 2011 | Feb 14 | Dec 29 | Jan 23 | none |
| 2010 | Mar 7 | Dec 4 | Mar 7 | Dec 4 |
| 2009 | Apr 8 | none | Mar 3 | none |
| 2008 | Mar 9 | Nov 17 | none | Nov 27 |
| 2007 | Mar 6 | Dec 5 | Feb 19 | none |
| 2006 | Mar 27 | Nov 19 | Feb 14 | Nov 22 |
| 2005 | Apr 25 | Dec 27 | Feb 13 | Dec 27 |
| 2004 | Apr 2 | Dec 13 | Feb 19 | none |
| 2003 | Apr 1 | Dec 12 | Jan 21 | Dec 20 |
| 2002 | Feb 28 | Nov 30 | Jan 10 | Dec 29 |
| 2001 | Mar 8 | Dec 27 | Feb 6 | none |
| 2000 | Apr 6 | Nov 22 | Feb 11 | Dec 20 |
| 1999 | Mar 5 | Dec 27 | Mar 5 | none |
| 1998 | Jan 29 | Dec 17 | none | none |
| 1997 | Apr 19 | Dec 7 | Feb 1 | none |
| 1996 | Mar 23 | Dec 9 | Mar 23 | none |
| 1995 | Feb 10 | Nov 15 | Feb 7 | Dec 25 |
| 1994 | Mar 15 | none | none | none |
| 1993 | Mar 15 | Dec 13 | none | Dec 27 |
| 1992 | Jan 16 | Nov 30 | none | none |
| 1991 | Mar 11 | none | Feb 17 | none |
| 1990 | none | Dec 11 | none | none |
| 1989 | Feb 27 | Dec 14 | Feb 27 | Dec 24 |
| 1988 | Mar 21 | Dec 14 | Feb 14 | Dec 14 |
| 1987 | Apr 6 | Dec 6 | Apr 6 | none |
| 1986 | Mar 8 | none | Mar 3 | none |
| 1985 | Mar 19 | Dec 22 | Feb 14 | Dec 22 |
| 1984 | Mar 2 | Dec 9 | Mar 2 | Dec 9 |
| 1983 | Mar 13 | Dec 25 | Jan 17 | Dec 25 |
| 1982 | Feb 23 | Dec 19 | Jan 16 | none |
| 1981 | Mar 21 | Nov 22 | Feb 4 | Nov 22 |
| 1980 | Mar 4 | Dec 18 | Mar 3 | none |
| 1979 | Feb 13 | none | Feb 2 | none |
| 1978 | Feb 25 | none | Feb 25 | none |
| 1977 | Mar 2 | Dec 23 | Feb 22 | Dec 23 |
| 1976 | Feb 10 | Nov 23 | Feb 10 | none |
| 1975 | Jan 15 | Nov 15 | Jan 15 | none |
| 1974 | Feb 18 | Dec 4 | Feb 11 | Dec 5 |
| 1973 | Jan 30 | Dec 10 | Jan 14 | Dec 13 |
| 1972 | Feb 21 | Dec 28 | Feb 21 | Dec 28 |
| 1971 | Apr 8 | none | Mar 21 | none |
| 1970 | Feb 27 | Nov 25 | Jan 11 | Nov 25 |
| 1969 | Feb 26 | Dec 1 | Feb 19 | 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.