Frost history / Blythe Ap, CA
Blythe Ap, CA: frost dates by year
Last spring and first fall frost at NOAA station USW00023158, 1951 to 2024, measured from daily minimum temperatures.
Elevation 395 ft, 33.619, -114.714. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 1 | Dec 14 |
| Earliest | Jan 1 (1983) | Oct 30 (1971) |
| Latest | Mar 13 (1956) | Dec 29 (1954) |
| Trend | 1.1 days earlier per decade | little change (less than half a day per decade) |
| Years with data | 72, 22 with no freeze | 72, 29 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 12 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 |
|---|---|---|---|---|
| 2024 | Jan 12 | none | none | none |
| 2023 | Jan 22 | none | none | none |
| 2022 | Feb 25 | Dec 15 | none | none |
| 2021 | none | Dec 16 | none | none |
| 2020 | none | none | none | none |
| 2019 | Feb 23 | none | none | none |
| 2018 | Feb 26 | none | none | none |
| 2017 | none | Dec 23 | none | none |
| 2016 | none | none | none | none |
| 2015 | Jan 4 | Dec 17 | Jan 2 | Dec 28 |
| 2014 | none | Dec 28 | none | none |
| 2013 | Jan 14 | Dec 10 | Jan 13 | none |
| 2012 | none | none | none | none |
| 2011 | Feb 4 | Dec 7 | Feb 4 | none |
| 2010 | none | Nov 27 | none | Nov 27 |
| 2009 | Jan 5 | Dec 5 | none | none |
| 2008 | Feb 6 | none | none | none |
| 2007 | Jan 18 | Dec 26 | Jan 17 | none |
| 2006 | Jan 11 | Dec 1 | none | none |
| 2005 | none | Dec 7 | none | Dec 16 |
| 2004 | none | Dec 25 | none | none |
| 2003 | none | Dec 28 | none | Dec 29 |
| 2002 | Mar 4 | Dec 20 | Feb 1 | none |
| 2001 | Feb 9 | Dec 13 | none | none |
| 2000 | none | Nov 14 | none | none |
| 1999 | none | none | none | none |
| 1998 | none | none | none | none |
| 1997 | none | none | none | none |
| 1996 | Feb 27 | Dec 19 | none | none |
| 1995 | no data | none | no data | none |
| 1994 | Feb 3 | Nov 20 | none | Nov 20 |
| 1993 | Jan 4 | none | none | none |
| 1992 | none | Nov 28 | none | none |
| 1991 | no data | Dec 2 | no data | none |
| 1990 | Feb 20 | no data | Feb 16 | no data |
| 1989 | Feb 7 | Dec 14 | none | none |
| 1988 | Jan 21 | Dec 24 | none | Dec 28 |
| 1987 | Jan 22 | Dec 15 | Jan 15 | Dec 27 |
| 1986 | Feb 10 | Dec 11 | none | none |
| 1985 | Feb 7 | Dec 13 | none | none |
| 1984 | none | none | none | none |
| 1983 | Jan 1 | none | none | none |
| 1982 | Jan 4 | none | none | none |
| 1981 | none | no data | none | no data |
| 1980 | none | none | none | none |
| 1979 | Jan 29 | none | Jan 2 | none |
| 1978 | none | Dec 7 | none | Dec 9 |
| 1977 | Jan 10 | none | none | none |
| 1976 | Jan 8 | Dec 24 | Jan 1 | none |
| 1975 | Feb 1 | Nov 30 | none | none |
| 1974 | Jan 3 | Dec 27 | Jan 3 | none |
| 1973 | Jan 25 | none | Jan 8 | none |
| 1972 | Feb 14 | Dec 6 | Feb 4 | Dec 12 |
| 1971 | Mar 3 | Oct 30 | Jan 10 | Oct 30 |
| 1970 | Jan 30 | Dec 18 | Jan 3 | none |
| 1969 | Feb 1 | none | none | none |
| 1968 | Jan 5 | Dec 18 | none | Dec 19 |
| 1967 | Jan 9 | none | none | none |
| 1966 | Feb 14 | Dec 25 | none | none |
| 1965 | Feb 13 | none | none | none |
| 1964 | Feb 27 | Dec 14 | Jan 14 | none |
| 1963 | Jan 21 | Dec 14 | Jan 14 | none |
| 1962 | Feb 28 | none | Jan 12 | none |
| 1961 | Jan 8 | Dec 12 | none | none |
| 1960 | Feb 25 | Dec 8 | Jan 3 | none |
| 1959 | none | none | none | none |
| 1958 | none | none | none | none |
| 1957 | none | none | none | none |
| 1956 | Mar 13 | none | Feb 3 | none |
| 1955 | Feb 22 | none | none | none |
| 1954 | Jan 4 | Dec 29 | none | none |
| 1953 | Feb 23 | Dec 7 | none | none |
| 1952 | Jan 11 | Nov 25 | Jan 4 | none |
| 1951 | Mar 4 | 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.