Newport 3N, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00356035, 2009 to 2025, measured from daily minimum temperatures.

Elevation 220 ft, 44.683, -124.055. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 13	Nov 26
Earliest	Jan 4 (2016)	Oct 31 (2019)
Latest	Apr 12 (2021)	Dec 28 (2021)
Trend	16.9 days earlier per decade	18.8 days later per decade
Years with data	16	17, 6 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 17 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	Feb 13	none	Feb 12	none
2024	Jan 17	none	Jan 16	none
2023	Apr 4	none	Feb 25	none
2022	Mar 10	Dec 17	Feb 24	none
2021	Apr 12	Dec 28	none	none
2020	Mar 16	Dec 24	none	none
2019	Mar 11	Oct 31	Mar 10	Nov 28
2018	Feb 24	none	Feb 23	none
2017	Jan 25	none	Jan 14	none
2016	Jan 4	Dec 8	none	Dec 17
2015	Mar 5	Nov 26	Jan 1	Nov 26
2014	Mar 23	Nov 15	Feb 8	Nov 16
2013	Mar 24	Nov 21	Jan 17	Nov 21
2012	Mar 23	none	Mar 8	none
2011	Apr 9	Nov 20	Feb 27	none
2010	Mar 19	Nov 22	none	none
2009	no data	Dec 3	no data	Dec 7

"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.