Frost history / Markley Cove, CA
Markley Cove, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00045360, 1970 to 2025, measured from daily minimum temperatures.
Elevation 480 ft, 38.492, -122.124. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 13 | Nov 28 |
| Earliest | Jan 2 (2016) | Oct 26 (2023) |
| Latest | May 12 (2022) | Dec 27 (2014) |
| Trend | little change (less than half a day per decade) | little change (less than half a day per decade) |
| Years with data | 53 | 54, 3 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 1 and the median first fall date is Dec 10.
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 | Apr 4 | Nov 27 | Mar 9 | Dec 4 |
| 2024 | Apr 8 | Nov 8 | Apr 6 | Nov 19 |
| 2023 | Apr 14 | Oct 26 | Apr 4 | Nov 26 |
| 2022 | May 12 | Nov 3 | Mar 12 | Nov 14 |
| 2021 | Mar 17 | Dec 10 | Jan 27 | Dec 31 |
| 2020 | Mar 28 | no data | none | no data |
| 2019 | Feb 24 | Nov 28 | none | none |
| 2018 | Mar 20 | none | Feb 28 | none |
| 2017 | Feb 28 | Dec 8 | Jan 7 | Dec 22 |
| 2016 | Jan 2 | Dec 6 | Jan 2 | Dec 18 |
| 2015 | Jan 4 | Nov 26 | Jan 3 | Nov 30 |
| 2014 | Feb 6 | Dec 27 | none | none |
| 2013 | Mar 5 | Dec 4 | Jan 22 | Dec 5 |
| 2012 | Apr 7 | Dec 13 | Jan 18 | Dec 19 |
| 2011 | Apr 9 | Dec 6 | Feb 28 | Dec 13 |
| 2010 | Mar 13 | Nov 24 | none | none |
| 2009 | no data | Dec 4 | no data | Dec 6 |
| 2008 | Apr 22 | Dec 6 | none | Dec 17 |
| 2007 | Mar 2 | Nov 22 | Jan 25 | Dec 1 |
| 2006 | Mar 11 | Nov 24 | Feb 21 | Dec 18 |
| 2005 | Jan 14 | Nov 27 | none | none |
| 2004 | Feb 12 | Nov 29 | none | none |
| 2003 | Feb 11 | Nov 22 | Feb 9 | none |
| 2002 | Mar 14 | none | Feb 1 | none |
| 2001 | Apr 3 | Dec 15 | Jan 18 | none |
| 2000 | Feb 24 | Nov 12 | Jan 2 | none |
| 1999 | Apr 9 | Dec 8 | Feb 11 | Dec 30 |
| 1998 | Mar 7 | Dec 4 | none | Dec 21 |
| 1997 | Jan 15 | Dec 23 | Jan 14 | Dec 27 |
| 1996 | Mar 6 | Dec 3 | none | none |
| 1995 | no data | Dec 25 | no data | none |
| 1994 | Mar 23 | Nov 14 | Feb 14 | Nov 23 |
| 1993 | Feb 28 | Nov 16 | Jan 11 | Nov 24 |
| 1992 | Feb 5 | no data | Jan 21 | no data |
| 1991 | Mar 27 | Nov 16 | Jan 30 | Dec 10 |
| 1990 | Mar 13 | Nov 23 | Feb 19 | Nov 27 |
| 1989 | Mar 4 | Nov 28 | Feb 15 | Dec 12 |
| 1988 | Mar 16 | Dec 1 | Feb 5 | Dec 26 |
| 1987 | Mar 29 | Dec 14 | Jan 21 | Dec 20 |
| 1986 | Feb 10 | Nov 27 | Feb 8 | none |
| 1985 | Mar 25 | Nov 11 | Feb 10 | Nov 13 |
| 1984 | Feb 26 | Dec 16 | Jan 18 | Dec 16 |
| 1983 | Feb 4 | Dec 21 | Jan 13 | none |
| 1982 | Apr 7 | Nov 14 | Feb 7 | none |
| 1981 | Feb 4 | none | none | none |
| 1980 | Mar 14 | Nov 13 | Jan 31 | Dec 9 |
| 1979 | Feb 17 | Nov 21 | Feb 1 | Dec 12 |
| 1978 | Jan 24 | Nov 11 | none | Nov 12 |
| 1977 | Mar 31 | Nov 19 | Jan 10 | Nov 19 |
| 1976 | Apr 2 | Nov 29 | Mar 6 | Nov 29 |
| 1975 | Apr 17 | Nov 21 | Jan 31 | Nov 29 |
| 1974 | Mar 10 | Dec 18 | Jan 9 | Dec 25 |
| 1973 | Mar 22 | Nov 4 | Jan 8 | none |
| 1972 | Mar 26 | Dec 5 | Feb 2 | Dec 5 |
| 1971 | Apr 21 | Dec 4 | Mar 2 | Dec 16 |
| 1970 | no data | Dec 13 | no data | Dec 25 |
"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.