Frost history / Parker Resrvoir, CA
Parker Resrvoir, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00046699, 1951 to 2025, measured from daily minimum temperatures.
Elevation 738 ft, 34.290, -114.171. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jan 10 | Dec 17 |
| Earliest | Jan 1 (1983) | Nov 21 (1979) |
| Latest | Feb 28 (1962) | Dec 29 (1988) |
| Trend | 0.6 days earlier per decade | little change (less than half a day per decade) |
| Years with data | 52, 29 with no freeze | 55, 43 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 12 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 | 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 | Jan 4 | no data | none | no data |
| 2018 | none | no data | none | no data |
| 2015 | Jan 3 | none | Jan 1 | none |
| 2014 | none | Dec 28 | none | Dec 28 |
| 2013 | Feb 27 | Dec 6 | Jan 15 | Dec 7 |
| 2012 | none | Dec 20 | none | none |
| 2011 | Feb 5 | none | none | none |
| 2010 | none | none | none | none |
| 2009 | none | none | none | none |
| 1999 | no data | none | no data | none |
| 1995 | none | none | none | none |
| 1994 | no data | none | no data | none |
| 1989 | no data | none | no data | none |
| 1988 | no data | Dec 29 | no data | none |
| 1987 | no data | Dec 14 | no data | none |
| 1986 | none | none | none | none |
| 1985 | Feb 2 | none | none | none |
| 1984 | none | none | none | none |
| 1983 | Jan 1 | none | none | none |
| 1982 | none | none | none | none |
| 1981 | none | none | none | none |
| 1980 | none | none | none | none |
| 1979 | Feb 4 | Nov 21 | none | none |
| 1978 | none | Dec 7 | none | none |
| 1977 | none | none | none | none |
| 1976 | Jan 4 | Nov 27 | none | Nov 27 |
| 1975 | none | none | none | none |
| 1974 | Jan 4 | none | none | none |
| 1973 | Jan 8 | none | none | none |
| 1972 | Jan 6 | Dec 12 | none | Dec 12 |
| 1971 | Jan 10 | none | Jan 9 | none |
| 1970 | Jan 4 | none | none | none |
| 1969 | none | none | none | none |
| 1968 | none | Dec 21 | none | none |
| 1967 | none | none | none | none |
| 1966 | Jan 22 | none | none | none |
| 1965 | Feb 12 | none | none | none |
| 1964 | none | none | none | none |
| 1963 | Jan 20 | none | Jan 14 | none |
| 1962 | Feb 28 | none | none | none |
| 1961 | none | none | none | none |
| 1960 | Jan 4 | none | none | none |
| 1959 | none | none | none | none |
| 1958 | none | none | none | none |
| 1957 | none | none | none | none |
| 1956 | Feb 3 | none | none | none |
| 1955 | Feb 22 | none | none | none |
| 1954 | Jan 2 | none | none | none |
| 1953 | Feb 21 | Dec 25 | none | none |
| 1952 | Jan 5 | none | none | none |
| 1951 | 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 to 2020 frost probabilities.