Last Frost Day

Frost history / Brownsville, TX

Brownsville, TX: frost dates by year

Last spring and first fall frost at NOAA station USW00012919, 1951 to 2024, measured from daily minimum temperatures.

Elevation 23 ft, 25.916, -97.419. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJan 20Dec 20
EarliestJan 3 (1979)Nov 28 (1993)
LatestMar 7 (1989)Dec 29 (1997)
Trend1.2 days earlier per decade0.5 days earlier per decade
Years with data74, 45 with no freeze74, 58 with no freeze

At 28°F (hard freeze) the median last spring date is Jan 28 and the median first fall date is Dec 24.

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 1619601970198019902000201020201951: Feb 31959: Jan 51960: Feb 251962: Jan 121963: Feb 141964: Jan 131968: Feb 241970: Jan 71973: Feb 111975: Jan 141976: Jan 91977: Jan 191978: Feb 221979: Jan 31980: Mar 21982: Feb 61985: Feb 21989: Mar 71996: Feb 31997: Jan 162001: Jan 202002: Jan 32010: Jan 102011: Feb 102014: Jan 292017: Jan 72018: Jan 172021: Feb 162024: Jan 16

First fall frost (32°F)

Nov 11Nov 26Dec 11Dec 26Jan 1019601970198019902000201020201953: Dec 261963: Dec 231964: Dec 181966: Dec 121973: Dec 201978: Dec 91983: Dec 221985: Dec 141989: Dec 131990: Dec 221993: Nov 281996: Dec 191997: Dec 292004: Dec 242009: Dec 52022: Dec 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
2024Jan 16nonenonenone
2023nonenonenonenone
2022noneDec 23noneDec 23
2021Feb 16noneFeb 16none
2020nonenonenonenone
2019nonenonenonenone
2018Jan 17nonenonenone
2017Jan 7nonenonenone
2016nonenonenonenone
2015nonenonenonenone
2014Jan 29nonenonenone
2013nonenonenonenone
2012nonenonenonenone
2011Feb 10noneFeb 3none
2010Jan 10nonenonenone
2009noneDec 5nonenone
2008nonenonenonenone
2007nonenonenonenone
2006nonenonenonenone
2005nonenonenonenone
2004noneDec 24noneDec 25
2003nonenonenonenone
2002Jan 3nonenonenone
2001Jan 20nonenonenone
2000nonenonenonenone
1999nonenonenonenone
1998nonenonenonenone
1997Jan 16Dec 29nonenone
1996Feb 3Dec 19nonenone
1995nonenonenonenone
1994nonenonenonenone
1993noneNov 28nonenone
1992nonenonenonenone
1991nonenonenonenone
1990noneDec 22nonenone
1989Mar 7Dec 13noneDec 22
1988nonenonenonenone
1987nonenonenonenone
1986nonenonenonenone
1985Feb 2Dec 14Feb 2none
1984nonenonenonenone
1983noneDec 22noneDec 24
1982Feb 6noneJan 14none
1981nonenonenonenone
1980Mar 2nonenonenone
1979Jan 3noneJan 3none
1978Feb 22Dec 9nonenone
1977Jan 19nonenonenone
1976Jan 9nonenonenone
1975Jan 14noneJan 14none
1974nonenonenonenone
1973Feb 11Dec 20Feb 10Dec 21
1972nonenonenonenone
1971nonenonenonenone
1970Jan 7nonenonenone
1969nonenonenonenone
1968Feb 24nonenonenone
1967nonenonenonenone
1966noneDec 12nonenone
1965nonenonenonenone
1964Jan 13Dec 18nonenone
1963Feb 14Dec 23Jan 24Dec 24
1962Jan 12noneJan 12none
1961nonenonenonenone
1960Feb 25nonenonenone
1959Jan 5nonenonenone
1958nonenonenonenone
1957nonenonenonenone
1956nonenonenonenone
1955nonenonenonenone
1954nonenonenonenone
1953noneDec 26nonenone
1952nonenonenonenone
1951Feb 3noneFeb 3none

"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.