Last Frost Day

Frost history / Monterey, CA

Monterey, CA: frost dates by year

Last spring and first fall frost at NOAA station USC00045795, 1951 to 2025, measured from daily minimum temperatures.

Elevation 260 ft, 36.590, -121.906. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJan 14Dec 20
EarliestJan 2 (1952)Dec 5 (1972)
LatestMar 3 (1976)Dec 31 (1987)
Trend2.8 days earlier per decadelittle change (less than half a day per decade)
Years with data70, 52 with no freeze70, 57 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 1 and the median first fall date is Dec 14.

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 1619601970198019902000201020201952: Jan 21953: Mar 21956: Feb 21957: Jan 301960: Jan 41962: Feb 271972: Jan 41974: Jan 21975: Jan 301976: Mar 31982: Jan 81987: Jan 101989: Feb 71993: Jan 41997: Jan 142002: Jan 292007: Jan 152013: Jan 14

First fall frost (32°F)

Nov 26Dec 11Dec 26Jan 1019601970198019902000201020201951: Dec 91954: Dec 271955: Dec 291956: Dec 91962: Dec 251967: Dec 141972: Dec 51978: Dec 71987: Dec 311988: Dec 291990: Dec 201998: Dec 212013: Dec 9

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
2025nonenonenonenone
2024nonenonenonenone
2023nonenonenonenone
2022nonenonenonenone
2021nonenonenonenone
2019noneno datanoneno data
2018nonenonenonenone
2016noneno datanoneno data
2015nonenonenonenone
2014nonenonenonenone
2013Jan 14Dec 9noneDec 9
2012nonenonenonenone
2011nonenonenonenone
2010nonenonenonenone
2009nonenonenonenone
2008nonenonenonenone
2007Jan 15noneJan 13none
2006nonenonenonenone
2005nonenonenonenone
2004nonenonenonenone
2003nonenonenonenone
2002Jan 29nonenonenone
2001nonenonenonenone
2000nonenonenonenone
1999nonenonenonenone
1998noneDec 21noneDec 21
1997Jan 14nonenonenone
1996nonenonenonenone
1995nonenonenonenone
1994nonenonenonenone
1993Jan 4nonenonenone
1992nonenonenonenone
1991nonenonenonenone
1990noneDec 20noneDec 21
1989Feb 7noneFeb 7none
1988noneDec 29nonenone
1987Jan 10Dec 31nonenone
1986nonenonenonenone
1985nonenonenonenone
1984nonenonenonenone
1983nonenonenonenone
1982Jan 8nonenonenone
1981nonenonenonenone
1980nonenonenonenone
1979nonenonenonenone
1978noneDec 7nonenone
1977nonenonenonenone
1976Mar 3nonenonenone
1975Jan 30nonenonenone
1974Jan 2nonenonenone
1973nonenonenonenone
1972Jan 4Dec 5noneDec 9
1971nonenonenonenone
1970nonenonenonenone
1969nonenonenonenone
1968nonenonenonenone
1967noneDec 14noneDec 14
1966nonenonenonenone
1965nonenonenonenone
1964nonenonenonenone
1962Feb 27Dec 25Feb 27none
1961nonenonenonenone
1960Jan 4nonenonenone
1959nonenonenonenone
1958nonenonenonenone
1957Jan 30noneJan 27none
1956Feb 2Dec 9nonenone
1955no dataDec 29no datanone
1954noneDec 27nonenone
1953Mar 2nonenonenone
1952Jan 2nonenonenone
1951no dataDec 9no datanone

"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.