Last Frost Day

Frost history / Houston Intercont Ap, TX

Houston Intercont Ap, TX: frost dates by year

Last spring and first fall frost at NOAA station USW00012960, 1969 to 2024, measured from daily minimum temperatures.

Elevation 95 ft, 29.980, -95.360. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianFeb 27Dec 1
EarliestJan 8 (2017)Oct 20 (1989)
LatestApr 10 (1973)Dec 26 (2001)
Trend6.3 days earlier per decade2.6 days later per decade
Years with data55, 2 with no freeze56, 7 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 11 and the median first fall date is Dec 10.

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 31Jan 15Jan 30Feb 14Mar 1Mar 16Mar 31Apr 151970198019902000201020201970: Mar 221971: Apr 71972: Feb 91973: Apr 101974: Feb 261975: Mar 141976: Mar 171977: Feb 281978: Mar 101979: Feb 191980: Mar 31981: Feb 151982: Mar 71983: Feb 31984: Mar 71985: Feb 131986: Mar 11987: Apr 31988: Mar 191989: Mar 91991: Feb 11992: Jan 241993: Mar 141994: Mar 101995: Mar 81996: Mar 211997: Feb 111998: Mar 111999: Mar 152000: Feb 62001: Feb 102002: Mar 52003: Feb 172004: Feb 72005: Jan 242006: Feb 132007: Feb 162008: Jan 202009: Jan 292010: Feb 252011: Feb 132012: Jan 142013: Mar 32014: Mar 42015: Mar 62016: Jan 282017: Jan 82018: Jan 182019: Mar 62020: Feb 272021: Feb 202022: Mar 132024: Jan 20

First fall frost (32°F)

Oct 12Oct 27Nov 11Nov 26Dec 11Dec 26Jan 101970198019902000201020201969: Nov 141970: Nov 151972: Nov 301973: Dec 81974: Nov 301975: Nov 141976: Nov 281977: Nov 101978: Dec 81979: Nov 141980: Nov 191981: Dec 181982: Dec 121983: Dec 71984: Nov 221985: Dec 21987: Nov 121988: Dec 11989: Oct 201990: Nov 301991: Nov 41992: Nov 271993: Oct 311995: Dec 101996: Dec 171997: Nov 171998: Dec 251999: Nov 32000: Dec 122001: Dec 262002: Dec 252003: Dec 142004: Dec 152005: Dec 62006: Nov 212007: Dec 172008: Dec 102009: Dec 42010: Nov 272011: Dec 72012: Dec 112013: Nov 282014: Nov 182016: Dec 192017: Dec 82018: Nov 142019: Nov 132020: Dec 12022: Dec 18

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 20noneJan 17none
2023nonenonenonenone
2022Mar 13Dec 18Feb 6Dec 22
2021Feb 20noneFeb 19none
2020Feb 27Dec 1nonenone
2019Mar 6Nov 13nonenone
2018Jan 18Nov 14Jan 18none
2017Jan 8Dec 8Jan 8none
2016Jan 28Dec 19nonenone
2015Mar 6nonenonenone
2014Mar 4Nov 18Mar 3none
2013Mar 3Nov 28nonenone
2012Jan 14Dec 11nonenone
2011Feb 13Dec 7Feb 12none
2010Feb 25Nov 27Jan 11none
2009Jan 29Dec 4noneDec 5
2008Jan 20Dec 10Jan 3none
2007Feb 16Dec 17Feb 16none
2006Feb 13Nov 21nonenone
2005Jan 24Dec 6nonenone
2004Feb 7Dec 15noneDec 15
2003Feb 17Dec 14Jan 18none
2002Mar 5Dec 25Mar 4none
2001Feb 10Dec 26Jan 21none
2000Feb 6Dec 12Jan 5Dec 17
1999Mar 15Nov 3Jan 5Dec 16
1998Mar 11Dec 25noneDec 26
1997Feb 11Nov 17Jan 18Dec 13
1996Mar 21Dec 17Mar 10Dec 18
1995Mar 8Dec 10noneDec 10
1994Mar 10noneFeb 2none
1993Mar 14Oct 31noneNov 27
1992Jan 24Nov 27Jan 20Nov 27
1991Feb 1Nov 4noneNov 4
1990noneNov 30noneDec 5
1989Mar 9Oct 20Mar 8Dec 9
1988Mar 19Dec 1Feb 12none
1987Apr 3Nov 12Jan 23none
1986Mar 1noneFeb 12none
1985Feb 13Dec 2Feb 12Dec 14
1984Mar 7Nov 22Feb 28Dec 7
1983Feb 3Dec 7noneDec 22
1982Mar 7Dec 12Feb 6Dec 13
1981Feb 15Dec 18Feb 12none
1980Mar 3Nov 19Mar 3none
1979Feb 19Nov 14Feb 10Nov 30
1978Mar 10Dec 8Mar 5Dec 9
1977Feb 28Nov 10Jan 29Dec 21
1976Mar 17Nov 28Feb 23Nov 28
1975Mar 14Nov 14Feb 24Nov 23
1974Feb 26Nov 30Feb 26none
1973Apr 10Dec 8Feb 11Dec 20
1972Feb 9Nov 30Feb 9Dec 16
1971Apr 7noneMar 8none
1970Mar 22Nov 15Feb 3Nov 16
1969no dataNov 14no dataNov 14

"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.