Frost history / Arcata Eureka Ap, CA
Arcata Eureka Ap, CA: frost dates by year
Last spring and first fall frost at NOAA station USW00024283, 1992 to 2024, measured from daily minimum temperatures.
Elevation 200 ft, 40.978, -124.109. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 2 | Nov 22 |
| Earliest | Feb 1 (2016) | Oct 12 (2008) |
| Latest | May 9 (1999) | Dec 26 (2014) |
| Trend | 2.9 days earlier per decade | 3.5 days later per decade |
| Years with data | 32 | 32, 2 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 8 and the median first fall date is Dec 6.
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 | Feb 27 | Nov 16 | none | none |
| 2023 | Apr 13 | Nov 25 | none | none |
| 2022 | Apr 15 | Nov 15 | Feb 25 | none |
| 2021 | Apr 11 | Dec 10 | Mar 16 | none |
| 2020 | Apr 2 | Nov 8 | none | none |
| 2019 | Mar 13 | Nov 28 | none | none |
| 2018 | Feb 27 | Nov 8 | Feb 20 | none |
| 2017 | Mar 1 | Dec 4 | Jan 5 | none |
| 2016 | Feb 1 | Dec 1 | Jan 2 | Dec 17 |
| 2015 | Feb 24 | Nov 16 | none | none |
| 2014 | Feb 5 | Dec 26 | none | none |
| 2013 | May 1 | Nov 22 | Jan 19 | Dec 4 |
| 2012 | Apr 6 | Dec 12 | none | none |
| 2011 | Apr 8 | Dec 3 | Feb 26 | none |
| 2010 | May 6 | Nov 23 | none | none |
| 2009 | Apr 15 | Dec 5 | Jan 3 | Dec 6 |
| 2008 | Apr 16 | Oct 12 | none | Dec 17 |
| 2007 | Apr 28 | Nov 21 | Jan 15 | none |
| 2006 | Mar 19 | Nov 28 | Feb 20 | none |
| 2005 | Apr 14 | Dec 5 | none | Dec 17 |
| 2004 | Apr 1 | Nov 20 | none | Nov 28 |
| 2003 | Feb 11 | Nov 1 | none | Nov 22 |
| 2002 | May 8 | Oct 30 | Jan 30 | none |
| 2001 | Apr 9 | Nov 7 | Feb 8 | none |
| 2000 | Mar 20 | Nov 11 | none | none |
| 1999 | May 9 | Dec 9 | none | none |
| 1998 | Mar 6 | no data | none | no data |
| 1997 | Apr 1 | Dec 19 | Jan 14 | none |
| 1996 | Feb 26 | none | Feb 26 | none |
| 1995 | Apr 21 | none | none | none |
| 1994 | Mar 20 | Nov 2 | none | Dec 8 |
| 1993 | Feb 28 | Nov 13 | Feb 26 | Nov 24 |
| 1992 | no data | Nov 10 | 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 to 2020 frost probabilities.