Florence #2, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00352973, 2007 to 2025, measured from daily minimum temperatures.

Elevation 75 ft, 44.004, -124.095. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 16	Nov 13
Earliest	Mar 6 (2025)	Oct 25 (2007)
Latest	May 14 (2007)	Dec 14 (2012)
Trend	20.4 days earlier per decade	4.1 days earlier per decade
Years with data	18	18, 2 with no freeze

At 28°F (hard freeze) the median last spring date is Mar 7 and the median first fall date is Nov 27.

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	Mar 6	none	Feb 12	none
2024	Apr 17	none	Jan 16	none
2023	Apr 4	Oct 28	Mar 1	Oct 28
2022	Apr 15	Nov 9	Feb 24	none
2021	Apr 14	Nov 22	Apr 9	none
2020	Apr 14	Nov 8	Mar 12	none
2019	May 1	Oct 28	Mar 10	Nov 29
2018	Apr 22	Nov 10	Feb 23	none
2017	Apr 3	Dec 4	Jan 14	none
2016	Mar 29	Dec 6	none	Dec 7
2015	Apr 16	Nov 16	Mar 1	Nov 25
2014	Apr 2	Nov 16	Mar 21	Dec 30
2013	May 1	Oct 28	Mar 23	Nov 20
2012	May 11	Dec 14	Mar 7	none
2011	Apr 22	Oct 25	Apr 19	Dec 3
2010	Apr 23	Nov 21	Mar 18	Nov 21
2009	no data	Dec 4	no data	Dec 4
2008	May 9	no data	Apr 3	no data
2007	May 14	Oct 25	Feb 1	Nov 25

"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.