Frost history / Tillamook 6SE, OR
Tillamook 6SE, OR: frost dates by year
Last spring and first fall frost at NOAA station USC00358498, 2006 to 2025, measured from daily minimum temperatures.
Elevation 140 ft, 45.429, -123.762. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 20 | Nov 9 |
| Earliest | Mar 4 (2015) | Oct 2 (2012) |
| Latest | May 31 (2014) | Dec 6 (2017) |
| Trend | 1.1 days later per decade | 14.5 days later per decade |
| Years with data | 18 | 19 |
At 28°F (hard freeze) the median last spring date is Mar 9 and the median first fall date is Dec 2.
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 | Apr 23 | no data | Mar 10 | no data |
| 2024 | Apr 23 | Nov 28 | Apr 16 | none |
| 2023 | Apr 26 | Oct 28 | Mar 2 | Nov 24 |
| 2022 | Apr 17 | Nov 9 | Feb 24 | Dec 18 |
| 2021 | Apr 15 | Dec 3 | Apr 11 | Dec 27 |
| 2020 | no data | Nov 8 | no data | none |
| 2019 | May 1 | Oct 27 | Mar 10 | Nov 30 |
| 2018 | Apr 3 | Nov 9 | Feb 24 | none |
| 2017 | Mar 7 | Dec 6 | Jan 15 | none |
| 2016 | Mar 30 | Dec 5 | Jan 3 | Dec 16 |
| 2015 | Mar 4 | Nov 21 | Jan 3 | Nov 21 |
| 2014 | May 31 | Nov 12 | Mar 20 | Dec 30 |
| 2013 | Apr 30 | Nov 20 | Mar 4 | Nov 20 |
| 2012 | May 11 | Oct 2 | Mar 7 | none |
| 2011 | Apr 18 | Nov 4 | Apr 8 | Dec 5 |
| 2010 | Mar 18 | Oct 16 | Mar 18 | Nov 21 |
| 2009 | May 9 | Nov 18 | Mar 12 | Dec 4 |
| 2008 | Apr 21 | Oct 10 | Apr 2 | Dec 14 |
| 2007 | Apr 3 | Oct 26 | Jan 14 | Nov 25 |
| 2006 | no data | Oct 30 | no data | Oct 31 |
"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.