Frost history / Cloverdale, CA
Cloverdale, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00041838, 1956 to 2025, measured from daily minimum temperatures.
Elevation 400 ft, 38.793, -123.026. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 23 | Nov 30 |
| Earliest | Jan 2 (2000) | Oct 30 (1971) |
| Latest | Apr 28 (1967) | Dec 30 (2014) |
| Trend | 1.3 days later per decade | 0.7 days earlier per decade |
| Years with data | 55, 1 with no freeze | 55, 3 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 21 and the median first fall date is Dec 16.
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 | Feb 20 | none | Jan 29 | none |
| 2024 | Feb 9 | Nov 28 | none | none |
| 2023 | Apr 13 | Nov 25 | Feb 23 | none |
| 2022 | Apr 12 | Nov 10 | Feb 26 | Dec 2 |
| 2021 | Mar 11 | Dec 11 | Jan 26 | none |
| 2020 | Apr 6 | Nov 9 | Feb 4 | Nov 9 |
| 2019 | Feb 22 | Nov 28 | none | Nov 29 |
| 2017 | Mar 1 | no data | Jan 6 | no data |
| 2016 | Jan 16 | no data | Jan 15 | no data |
| 2015 | Jan 4 | Nov 26 | Jan 1 | Nov 28 |
| 2014 | Feb 5 | Dec 30 | none | Dec 31 |
| 2013 | Apr 27 | Nov 3 | Feb 8 | Nov 3 |
| 2012 | Mar 8 | Dec 13 | Jan 18 | none |
| 2011 | Feb 27 | no data | Feb 27 | no data |
| 2008 | Apr 20 | no data | none | no data |
| 2005 | Jan 15 | Dec 4 | none | none |
| 2004 | Jan 4 | Nov 29 | none | Dec 4 |
| 2002 | Mar 8 | Nov 30 | Jan 30 | none |
| 2001 | Mar 1 | Nov 27 | Jan 17 | none |
| 2000 | Jan 2 | no data | none | no data |
| 1999 | Apr 9 | no data | none | no data |
| 1998 | no data | Dec 5 | no data | Dec 21 |
| 1997 | Jan 14 | Dec 22 | Jan 14 | Dec 23 |
| 1996 | Feb 27 | Dec 20 | none | none |
| 1995 | Mar 24 | none | none | none |
| 1994 | Feb 19 | Nov 18 | none | Dec 8 |
| 1993 | Jan 12 | Nov 23 | Jan 11 | Nov 25 |
| 1992 | no data | Dec 5 | no data | Dec 27 |
| 1989 | no data | Nov 29 | no data | Dec 26 |
| 1988 | Feb 4 | Dec 5 | none | none |
| 1987 | Jan 22 | no data | Jan 19 | no data |
| 1986 | Jan 10 | Nov 28 | none | none |
| 1985 | Feb 10 | Nov 12 | Jan 14 | Dec 20 |
| 1984 | Jan 14 | Dec 16 | Jan 14 | none |
| 1983 | no data | Dec 4 | no data | none |
| 1982 | no data | Dec 25 | no data | none |
| 1981 | Jan 31 | none | Jan 30 | none |
| 1980 | Jan 31 | Dec 7 | Jan 30 | none |
| 1979 | Feb 5 | Nov 20 | Feb 4 | Nov 21 |
| 1978 | none | Nov 11 | none | Nov 12 |
| 1977 | Mar 14 | Nov 19 | none | none |
| 1976 | Apr 17 | Nov 28 | Jan 5 | none |
| 1975 | Apr 15 | Nov 22 | Jan 31 | Dec 15 |
| 1974 | Feb 23 | Dec 24 | Jan 10 | none |
| 1973 | Jan 29 | Nov 4 | Jan 7 | none |
| 1972 | Mar 28 | Dec 5 | Feb 2 | Dec 5 |
| 1971 | no data | Oct 30 | no data | Dec 18 |
| 1970 | Jan 29 | Dec 19 | Jan 6 | Dec 25 |
| 1969 | Mar 11 | Nov 28 | Jan 29 | none |
| 1968 | Jan 29 | Dec 20 | Jan 27 | Dec 20 |
| 1967 | Apr 28 | Dec 1 | none | Dec 16 |
| 1966 | Mar 5 | Dec 26 | Jan 21 | none |
| 1965 | Jan 13 | Dec 14 | Jan 1 | Dec 15 |
| 1964 | Feb 28 | Nov 17 | none | none |
| 1963 | no data | Dec 11 | no data | none |
| 1962 | Feb 28 | Dec 25 | Feb 27 | Dec 25 |
| 1961 | Jan 22 | Nov 16 | Jan 6 | none |
| 1960 | Feb 27 | Dec 8 | Jan 3 | none |
| 1959 | Feb 13 | Nov 15 | none | Dec 30 |
| 1958 | Mar 13 | Nov 17 | Jan 7 | none |
| 1957 | Feb 1 | Dec 11 | Jan 30 | none |
| 1956 | Mar 6 | Dec 6 | Feb 16 | Dec 20 |
"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.