Frost history / Fremont, CA
Fremont, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00043244, 1996 to 2025, measured from daily minimum temperatures.
Elevation 38 ft, 37.542, -122.016. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 1 | Dec 18 |
| Earliest | Jan 4 (2004) | Nov 24 (2010) |
| Latest | Mar 2 (2023) | Dec 27 (2019) |
| Trend | 9.8 days later per decade | 0.8 days earlier per decade |
| Years with data | 28, 12 with no freeze | 29, 14 with no freeze |
At 28°F (hard freeze) the median last spring date is Jan 10 and the median first fall date is Dec 23.
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 10 | none | none | none |
| 2024 | Jan 11 | none | none | none |
| 2023 | Mar 2 | none | none | none |
| 2022 | Feb 25 | Nov 30 | none | none |
| 2021 | Jan 26 | none | none | none |
| 2020 | Feb 3 | none | none | none |
| 2019 | Feb 19 | Dec 27 | none | none |
| 2018 | Feb 24 | none | none | none |
| 2017 | none | none | none | none |
| 2016 | none | Dec 17 | none | none |
| 2015 | none | Dec 26 | none | none |
| 2014 | none | none | none | none |
| 2013 | Feb 9 | Dec 4 | none | none |
| 2012 | Jan 18 | Dec 19 | none | none |
| 2011 | Feb 27 | Dec 23 | none | none |
| 2010 | none | Nov 24 | none | none |
| 2009 | Jan 4 | Dec 8 | Jan 4 | none |
| 2008 | none | Dec 26 | none | none |
| 2007 | Jan 18 | Dec 22 | Jan 16 | none |
| 2006 | none | Dec 18 | none | none |
| 2005 | none | none | none | none |
| 2004 | Jan 4 | Dec 4 | none | none |
| 2003 | none | none | none | none |
| 2002 | Jan 30 | none | none | none |
| 2001 | none | none | none | none |
| 2000 | none | none | none | none |
| 1999 | Jan 28 | no data | none | no data |
| 1998 | none | Dec 7 | none | Dec 23 |
| 1997 | no data | Dec 26 | no data | none |
| 1996 | no data | none | no data | 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.