Frost history / Borrego Desert Park, CA
Borrego Desert Park, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00040983, 1968 to 2025, measured from daily minimum temperatures.
Elevation 810 ft, 33.256, -116.404. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jan 31 | Dec 16 |
| Earliest | Jan 1 (2015) | Nov 26 (2010) |
| Latest | Apr 20 (1972) | Dec 30 (1982) |
| Trend | 3.7 days earlier per decade | 2.5 days earlier per decade |
| Years with data | 57, 35 with no freeze | 57, 35 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 27 and the median first fall date is Dec 24.
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 | none | none | none | none |
| 2024 | none | none | none | none |
| 2023 | none | none | none | none |
| 2022 | none | none | none | none |
| 2021 | none | none | none | none |
| 2020 | none | none | none | none |
| 2019 | none | none | none | none |
| 2018 | Feb 20 | none | none | none |
| 2017 | none | none | none | none |
| 2016 | none | none | none | none |
| 2015 | Jan 1 | none | none | none |
| 2014 | none | none | none | none |
| 2013 | Jan 16 | Dec 6 | Jan 16 | none |
| 2012 | none | none | none | none |
| 2011 | Feb 19 | no data | Feb 3 | no data |
| 2010 | none | Nov 26 | none | none |
| 2009 | none | none | none | none |
| 2008 | none | Dec 23 | none | none |
| 2007 | Jan 17 | none | Jan 16 | none |
| 2006 | no data | Nov 30 | no data | none |
| 2005 | none | none | none | none |
| 2004 | none | Dec 1 | none | none |
| 2003 | none | Dec 28 | none | none |
| 2002 | Feb 9 | none | Jan 25 | none |
| 2001 | none | Dec 17 | none | none |
| 2000 | none | none | none | none |
| 1999 | Jan 27 | none | Jan 27 | none |
| 1998 | none | Dec 22 | none | none |
| 1997 | none | none | none | none |
| 1996 | none | none | none | none |
| 1995 | none | none | none | none |
| 1994 | none | Dec 9 | none | none |
| 1993 | Jan 3 | none | none | none |
| 1992 | none | Dec 19 | none | none |
| 1991 | none | Nov 30 | none | none |
| 1990 | Feb 16 | Dec 23 | Feb 16 | Dec 23 |
| 1989 | Feb 7 | none | Feb 6 | none |
| 1988 | none | Dec 27 | none | Dec 27 |
| 1987 | Jan 24 | Dec 15 | none | Dec 26 |
| 1986 | none | none | none | none |
| 1985 | Mar 4 | Dec 13 | Feb 1 | none |
| 1984 | none | none | none | none |
| 1983 | none | none | none | none |
| 1982 | Jan 7 | Dec 30 | none | none |
| 1981 | none | none | none | none |
| 1980 | none | none | none | none |
| 1979 | Feb 1 | none | none | none |
| 1978 | none | Dec 7 | none | Dec 9 |
| 1977 | Mar 18 | none | Mar 18 | none |
| 1976 | Jan 3 | Nov 29 | none | none |
| 1975 | Feb 1 | none | none | none |
| 1974 | Jan 3 | Dec 24 | Jan 3 | none |
| 1973 | Jan 26 | none | none | none |
| 1972 | Apr 20 | Dec 12 | Apr 20 | none |
| 1971 | Mar 3 | none | Jan 8 | none |
| 1970 | Jan 30 | none | Jan 6 | none |
| 1969 | none | Dec 30 | none | none |
| 1968 | none | Dec 21 | none | 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 1991–2020 frost probabilities.