Frost history / Turlock #2, CA
Turlock #2, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00049073, 1988 to 2024, measured from daily minimum temperatures.
Elevation 103 ft, 37.502, -120.846. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jan 26 | Dec 6 |
| Earliest | Jan 1 (2016) | Nov 19 (1994) |
| Latest | Feb 26 (1996) | Dec 27 (1988) |
| Trend | 11.5 days earlier per decade | little change (less than half a day per decade) |
| Years with data | 29, 11 with no freeze | 34, 12 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 4 and the median first fall date is Dec 21.
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 | none | none | none | none |
| 2023 | none | none | none | none |
| 2022 | none | Dec 17 | none | none |
| 2021 | none | none | none | none |
| 2020 | none | none | none | none |
| 2019 | none | none | none | none |
| 2018 | none | none | none | none |
| 2017 | none | none | none | none |
| 2016 | Jan 1 | none | none | none |
| 2015 | Jan 4 | Nov 28 | Jan 2 | none |
| 2014 | no data | none | no data | none |
| 2012 | Jan 19 | no data | Jan 17 | no data |
| 2011 | no data | Dec 5 | no data | Dec 24 |
| 2010 | none | Nov 25 | none | none |
| 2009 | Jan 7 | Dec 6 | Jan 4 | Dec 6 |
| 2008 | no data | Dec 17 | no data | none |
| 2006 | Feb 20 | Nov 30 | none | none |
| 2005 | no data | none | no data | none |
| 2004 | Jan 21 | Nov 30 | none | none |
| 2003 | Feb 9 | Nov 23 | none | none |
| 2002 | Feb 4 | Dec 25 | none | none |
| 2001 | Jan 18 | none | none | none |
| 2000 | Jan 6 | Dec 25 | none | none |
| 1999 | Feb 11 | Dec 16 | none | none |
| 1998 | none | Dec 7 | none | Dec 22 |
| 1997 | Jan 14 | Dec 11 | Jan 14 | none |
| 1996 | Feb 26 | Dec 25 | none | none |
| 1995 | none | none | none | none |
| 1994 | Feb 12 | Nov 19 | none | none |
| 1993 | Jan 12 | Nov 25 | Jan 4 | none |
| 1992 | Feb 3 | Dec 15 | none | none |
| 1991 | Jan 30 | Dec 1 | Jan 1 | none |
| 1990 | Feb 19 | Nov 28 | Feb 15 | Dec 20 |
| 1989 | no data | Dec 1 | no data | Dec 14 |
| 1988 | no data | Dec 27 | no data | Dec 29 |
"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.