Frost history / Annapolis Naf, MD
Annapolis Naf, MD: frost dates by year
Last spring and first fall frost at NOAA station USW00013752, 1951 to 2024, measured from daily minimum temperatures.
Elevation 8 ft, 38.983, -76.467. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 24 | Nov 20 |
| Earliest | Feb 27 (2010) | Oct 21 (1952) |
| Latest | Apr 13 (1957) | Dec 12 (2011) |
| Trend | 1.0 days earlier per decade | 1.8 days later per decade |
| Years with data | 34 | 34 |
At 28°F (hard freeze) the median last spring date is Mar 9 and the median first fall date is Dec 2.
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 1 | Nov 29 | Feb 18 | Dec 4 |
| 2023 | Mar 20 | Nov 28 | Feb 4 | Nov 29 |
| 2022 | Mar 29 | Dec 2 | Mar 29 | Dec 23 |
| 2021 | Mar 21 | Nov 20 | Mar 8 | none |
| 2020 | Mar 8 | Nov 19 | Mar 1 | Dec 19 |
| 2019 | Mar 7 | Nov 9 | Mar 7 | Nov 13 |
| 2018 | Mar 17 | Nov 22 | Feb 9 | Nov 23 |
| 2017 | Mar 23 | Nov 10 | Mar 16 | Nov 11 |
| 2016 | Apr 10 | Nov 23 | Mar 3 | Dec 15 |
| 2015 | Mar 29 | Dec 6 | Mar 29 | none |
| 2014 | Mar 27 | Nov 15 | Mar 27 | Nov 18 |
| 2013 | Apr 4 | Nov 13 | Feb 21 | Nov 24 |
| 2012 | Mar 6 | Nov 26 | Feb 13 | none |
| 2011 | Mar 27 | Dec 12 | Mar 3 | none |
| 2010 | Feb 27 | Nov 29 | Feb 17 | Dec 8 |
| 2009 | Mar 25 | Dec 6 | Mar 5 | Dec 11 |
| 2008 | Mar 10 | Nov 19 | Feb 28 | Dec 7 |
| 2007 | Apr 9 | Nov 24 | Mar 9 | Dec 6 |
| 2006 | Mar 21 | Nov 4 | Feb 27 | Dec 7 |
| 2005 | Mar 18 | Nov 17 | Mar 10 | Nov 19 |
| 2004 | Mar 23 | Dec 4 | Mar 23 | Dec 15 |
| 2003 | Apr 1 | Nov 10 | Mar 11 | Dec 4 |
| 2002 | Mar 23 | Nov 27 | Mar 23 | Nov 28 |
| 1961 | Mar 18 | Nov 11 | Mar 18 | Dec 9 |
| 1960 | Mar 26 | Nov 8 | Mar 26 | Nov 8 |
| 1959 | Mar 29 | Nov 17 | Mar 29 | Nov 17 |
| 1958 | Mar 20 | Nov 8 | Mar 18 | Nov 30 |
| 1957 | Apr 13 | Nov 11 | Mar 5 | Dec 4 |
| 1956 | Mar 25 | Nov 22 | Mar 25 | Nov 23 |
| 1955 | Mar 29 | Nov 26 | Mar 28 | Nov 28 |
| 1954 | Apr 4 | Dec 2 | Mar 7 | Dec 6 |
| 1953 | Mar 11 | Nov 6 | Mar 9 | Dec 16 |
| 1952 | Mar 25 | Oct 21 | Mar 15 | Nov 29 |
| 1951 | Mar 26 | Nov 3 | Mar 22 | Nov 19 |
"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.