Last Frost Day

Frost history / Torrance Ap, CA

Torrance Ap, CA: frost dates by year

Last spring and first fall frost at NOAA station USW00003122, 1951 to 2024, measured from daily minimum temperatures.

Elevation 90 ft, 33.802, -118.341. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJan 10Dec 10
EarliestJan 3 (1960)Nov 17 (1958)
LatestApr 18 (1963)Dec 28 (1954)
Trend6.4 days earlier per decade1.0 days earlier per decade
Years with data67, 56 with no freeze65, 53 with no freeze

At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Dec 6.

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)

Dec 16Dec 31Jan 15Jan 30Feb 14Mar 1Mar 16Mar 31Apr 15Apr 3019601970198019902000201020201952: Jan 51954: Feb 201956: Apr 61960: Jan 31963: Apr 181971: Jan 71973: Jan 51976: Jan 31987: Jan 171989: Mar 32000: Jan 10

First fall frost (32°F)

Nov 11Nov 26Dec 11Dec 26Jan 1019601970198019902000201020201951: Dec 81953: Dec 261954: Dec 281956: Dec 81958: Nov 171967: Dec 141972: Dec 121978: Dec 61987: Dec 261990: Dec 221994: Nov 262004: Dec 2

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
2024nonenonenonenone
2023nonenonenonenone
2022nonenonenonenone
2021nonenonenonenone
2020nonenonenonenone
2019nonenonenonenone
2018nonenonenonenone
2017nonenonenonenone
2016nonenonenonenone
2015nonenonenonenone
2014nonenonenonenone
2013nonenonenonenone
2012no datanoneno datanone
2011noneno datanoneno data
2010nonenonenonenone
2006no datanoneno datanone
2005no datanoneno datanone
2004noneDec 2noneDec 6
2003nonenonenonenone
2002nonenonenonenone
2001nonenonenonenone
2000Jan 10nonenonenone
1999nonenonenonenone
1998nonenonenonenone
1997nonenonenonenone
1996nonenonenonenone
1995nonenonenonenone
1994noneNov 26nonenone
1993nonenonenonenone
1992nonenonenonenone
1991nonenonenonenone
1990noneDec 22noneDec 22
1989Mar 3nonenonenone
1988nonenonenonenone
1987Jan 17Dec 26nonenone
1986nonenonenonenone
1985nonenonenonenone
1984nonenonenonenone
1983nonenonenonenone
1982noneno datanoneno data
1981nonenonenonenone
1980nonenonenonenone
1979nonenonenonenone
1978noneDec 6noneDec 6
1977nonenonenonenone
1976Jan 3nonenonenone
1975nonenonenonenone
1974nonenonenonenone
1973Jan 5nonenonenone
1972noneDec 12nonenone
1971Jan 7nonenonenone
1970noneno datanoneno data
1969nonenonenonenone
1968noneno datanoneno data
1967noneDec 14nonenone
1966nonenonenonenone
1965nonenonenonenone
1964nonenonenonenone
1963Apr 18nonenonenone
1962nonenonenonenone
1961noneno datanoneno data
1960Jan 3nonenonenone
1959nonenonenonenone
1958noneNov 17nonenone
1957no datanoneno datanone
1956Apr 6Dec 8Apr 6none
1955noneno datanoneno data
1954Feb 20Dec 28nonenone
1953noneDec 26nonenone
1952Jan 5nonenonenone
1951noneDec 8nonenone

"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.