Frost history / Bellingham 3 Ssw, WA
Bellingham 3 Ssw, WA: frost dates by year
Last spring and first fall frost at NOAA station USC00450587, 1985 to 2023, measured from daily minimum temperatures.
Elevation 15 ft, 48.718, -122.511. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 2 | Nov 4 |
| Earliest | Feb 25 (1994) | Oct 8 (1985) |
| Latest | May 12 (1992) | Dec 18 (1998) |
| Trend | 1.5 days later per decade | 3.1 days earlier per decade |
| Years with data | 38 | 37 |
At 28°F (hard freeze) the median last spring date is Mar 4 and the median first fall date is Nov 20.
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 |
|---|---|---|---|---|
| 2023 | Apr 20 | no data | Apr 14 | no data |
| 2022 | Apr 20 | Nov 3 | Mar 10 | Nov 8 |
| 2021 | Apr 12 | Oct 30 | Apr 11 | Dec 20 |
| 2020 | Apr 13 | Oct 25 | Mar 16 | Oct 25 |
| 2019 | Mar 11 | Oct 10 | Mar 10 | Oct 29 |
| 2018 | Mar 25 | Nov 8 | Mar 7 | Dec 5 |
| 2017 | Mar 20 | Nov 3 | Feb 28 | Nov 4 |
| 2016 | Mar 18 | Nov 18 | Jan 15 | Dec 6 |
| 2015 | Apr 6 | Nov 19 | Mar 4 | Nov 20 |
| 2014 | Apr 1 | Nov 12 | Feb 8 | Nov 12 |
| 2013 | Apr 22 | Oct 29 | Mar 4 | Nov 20 |
| 2012 | Apr 7 | Nov 8 | Mar 24 | Nov 8 |
| 2011 | Apr 8 | no data | Mar 4 | no data |
| 2010 | Apr 10 | Nov 20 | Jan 7 | Nov 20 |
| 2009 | Apr 4 | Oct 11 | Mar 21 | Oct 12 |
| 2008 | Apr 22 | Oct 11 | Apr 2 | Dec 13 |
| 2007 | Apr 3 | Oct 26 | Mar 2 | Nov 21 |
| 2006 | Mar 20 | Oct 30 | Mar 19 | Oct 31 |
| 2005 | Mar 22 | Nov 28 | Feb 23 | Nov 28 |
| 2004 | Apr 2 | Nov 4 | Jan 7 | Dec 28 |
| 2003 | Mar 24 | Oct 31 | Mar 7 | Nov 4 |
| 2002 | Apr 3 | Oct 30 | Mar 20 | Oct 30 |
| 2001 | Apr 11 | Nov 18 | Mar 4 | Dec 24 |
| 2000 | Mar 7 | Nov 11 | Feb 19 | Nov 11 |
| 1999 | Apr 14 | Nov 1 | Mar 6 | Dec 26 |
| 1998 | Mar 29 | Dec 18 | Mar 6 | Dec 19 |
| 1997 | Apr 6 | Nov 11 | Apr 4 | Dec 6 |
| 1996 | Mar 28 | Oct 29 | Mar 28 | Nov 19 |
| 1995 | Mar 26 | Oct 29 | Mar 5 | Oct 31 |
| 1994 | Feb 25 | Nov 5 | Feb 10 | Nov 18 |
| 1993 | Mar 8 | Nov 23 | Feb 26 | Nov 23 |
| 1992 | May 12 | Dec 2 | Jan 8 | Dec 29 |
| 1991 | Mar 27 | Oct 28 | Mar 5 | Oct 29 |
| 1990 | Mar 27 | Dec 7 | Feb 19 | Dec 18 |
| 1989 | Mar 23 | Nov 22 | Mar 4 | Dec 12 |
| 1988 | Apr 9 | Oct 27 | Feb 2 | Dec 15 |
| 1987 | Mar 28 | Nov 17 | Jan 19 | Nov 17 |
| 1986 | Apr 30 | Nov 9 | Feb 20 | Nov 10 |
| 1985 | no data | Oct 8 | no data | Nov 11 |
"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.