Last Frost Day

Frost history / Falls City 2 Ssw, OR

Falls City 2 Ssw, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00352800, 1951 to 2025, measured from daily minimum temperatures.

Elevation 690 ft, 44.836, -123.453. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 26Nov 2
EarliestApr 1 (2004)Oct 10 (2019)
LatestMay 18 (2003)Dec 5 (2016)
Trendlittle change (less than half a day per decade)0.8 days later per decade
Years with data3233

At 28°F (hard freeze) the median last spring date is Mar 11 and the median first fall date is Nov 21.

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)

Mar 16Mar 31Apr 15Apr 30May 15May 3019601970198019902000201020201951: Apr 301952: May 41953: Apr 101954: May 11955: May 131956: Apr 61957: Apr 211958: Apr 251959: Apr 151960: Apr 222003: May 182004: Apr 12005: Apr 142006: May 92007: Apr 202008: May 52009: Apr 252010: May 92011: May 132012: May 32013: May 12014: Apr 272015: Apr 162016: Apr 272017: May 82018: Apr 52019: Apr 282020: Apr 72021: Apr 122022: May 122024: Apr 182025: Apr 23

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 1119601970198019902000201020201951: Nov 11952: Nov 21953: Nov 21954: Oct 241955: Nov 121956: Oct 221957: Nov 11958: Oct 231959: Nov 51960: Nov 222002: Oct 292003: Oct 312004: Nov 42005: Oct 292006: Oct 302007: Nov 22008: Nov 232010: Nov 212011: Nov 22012: Nov 102013: Oct 302014: Nov 112015: Nov 102016: Dec 52017: Oct 142018: Nov 82019: Oct 102020: Oct 252021: Nov 182022: Nov 92023: Oct 262024: Nov 172025: Nov 23

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2025Apr 23Nov 23Feb 14none
2024Apr 18Nov 17Mar 8Dec 2
2023no dataOct 26no dataOct 30
2022May 12Nov 9Apr 16Nov 17
2021Apr 12Nov 18Apr 11Nov 22
2020Apr 7Oct 25Mar 26Oct 26
2019Apr 28Oct 10Mar 11Oct 29
2018Apr 5Nov 8Mar 5Dec 4
2017May 8Oct 14Apr 4Dec 8
2016Apr 27Dec 5Feb 1Dec 8
2015Apr 16Nov 10Mar 5Nov 22
2014Apr 27Nov 11Mar 22Nov 11
2013May 1Oct 30Jan 25Nov 21
2012May 3Nov 10Mar 23none
2011May 13Nov 2Mar 28Nov 12
2010May 9Nov 21Mar 9Nov 23
2009Apr 25no dataApr 6no data
2008May 5Nov 23Apr 20Dec 15
2007Apr 20Nov 2Apr 2Nov 23
2006May 9Oct 30Mar 14Oct 31
2005Apr 14Oct 29Feb 18Nov 8
2004Apr 1Nov 4Jan 24Nov 28
2003May 18Oct 31Feb 26Nov 1
2002no dataOct 29no dataOct 29
1960Apr 22Nov 22Mar 4Dec 6
1959Apr 15Nov 5Mar 14Nov 11
1958Apr 25Oct 23Mar 6Nov 16
1957Apr 21Nov 1Feb 21Dec 10
1956Apr 6Oct 22Mar 12Nov 19
1955May 13Nov 12Mar 20Nov 12
1954May 1Oct 24Mar 17Dec 19
1953Apr 10Nov 2Mar 2Dec 23
1952May 4Nov 2Mar 21Nov 16
1951Apr 30Nov 1Mar 10Dec 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.