Frost history / Hollister 2, CA
Hollister 2, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00044025, 1976 to 2025, measured from daily minimum temperatures.
Elevation 275 ft, 36.848, -121.421. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 25 | Nov 27 |
| Earliest | Jan 1 (2016) | Nov 2 (1990) |
| Latest | Apr 10 (1999) | Dec 29 (2018) |
| Trend | 2.8 days earlier per decade | 6.6 days later per decade |
| Years with data | 42, 2 with no freeze | 39, 3 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 22 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 11 | none | none | none |
| 2024 | Jan 12 | Dec 10 | none | none |
| 2023 | no data | none | no data | none |
| 2022 | Feb 26 | no data | Feb 24 | no data |
| 2019 | Feb 23 | no data | none | no data |
| 2018 | Feb 28 | Dec 29 | Feb 24 | none |
| 2017 | Apr 3 | Dec 4 | Apr 1 | none |
| 2016 | Jan 1 | Dec 17 | none | Dec 17 |
| 2015 | Jan 4 | Nov 25 | Jan 2 | Dec 26 |
| 2014 | none | Dec 27 | none | none |
| 2013 | Feb 25 | Dec 3 | Jan 15 | Dec 3 |
| 2012 | Jan 19 | Dec 14 | Jan 18 | Dec 20 |
| 2011 | Feb 28 | Dec 3 | Jan 10 | Dec 22 |
| 2010 | none | Nov 24 | none | Nov 25 |
| 2009 | Mar 10 | Nov 19 | Jan 4 | Dec 8 |
| 2008 | Mar 30 | no data | none | no data |
| 2007 | Mar 1 | Nov 23 | Jan 22 | Dec 22 |
| 2006 | Mar 13 | Nov 24 | none | Dec 18 |
| 2005 | Jan 15 | Nov 27 | none | none |
| 2004 | Feb 11 | Nov 22 | Jan 4 | Nov 29 |
| 2003 | Feb 10 | no data | none | no data |
| 2002 | Apr 8 | Dec 23 | Apr 1 | none |
| 2001 | Jan 17 | Nov 27 | none | none |
| 1999 | Apr 10 | Dec 4 | Mar 10 | none |
| 1998 | Mar 7 | Dec 5 | none | Dec 20 |
| 1997 | Mar 5 | Dec 23 | Jan 14 | Dec 26 |
| 1996 | Feb 26 | Dec 2 | none | none |
| 1995 | Feb 15 | Dec 21 | none | none |
| 1994 | Mar 29 | Nov 14 | Feb 12 | Nov 19 |
| 1993 | Feb 15 | Nov 15 | Jan 5 | Nov 24 |
| 1992 | Jan 24 | Nov 11 | Jan 23 | Dec 19 |
| 1991 | Feb 1 | Nov 29 | Jan 30 | Dec 16 |
| 1990 | Mar 13 | Nov 2 | Feb 19 | Nov 27 |
| 1989 | Mar 4 | Nov 27 | Feb 10 | Dec 11 |
| 1988 | Mar 12 | Nov 20 | Feb 5 | Dec 26 |
| 1987 | Feb 27 | Nov 26 | Jan 21 | Dec 14 |
| 1986 | Feb 10 | Nov 30 | none | none |
| 1985 | no data | Nov 12 | no data | Nov 19 |
| 1984 | Feb 23 | Nov 26 | Jan 14 | Dec 17 |
| 1983 | Jan 20 | Nov 8 | Jan 3 | none |
| 1982 | Apr 7 | Nov 14 | Feb 5 | Dec 25 |
| 1981 | Feb 1 | none | none | none |
| 1980 | Feb 12 | Nov 12 | none | Dec 8 |
| 1976 | Mar 4 | no data | Jan 4 | no data |
"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.