Last Frost Day

Frost history / Rockport Aransas Co Ap, TX

Rockport Aransas Co Ap, TX: frost dates by year

Last spring and first fall frost at NOAA station USW00012972, 1996 to 2024, measured from daily minimum temperatures.

Elevation 22 ft, 28.084, -97.046. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJan 21Dec 16
EarliestJan 4 (2001)Nov 28 (2011)
LatestMar 4 (2002)Dec 26 (1998)
Trend1.6 days later per decade1.6 days earlier per decade
Years with data28, 13 with no freeze28, 17 with no freeze

At 28°F (hard freeze) the median last spring date is Jan 17 and the median first fall date is Dec 20.

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 162000201020201997: Jan 162001: Jan 42002: Mar 42003: Jan 182007: Feb 162009: Jan 212010: Feb 162011: Feb 122012: Jan 142014: Mar 32017: Jan 82018: Jan 172021: Feb 202022: Feb 52024: Jan 17

First fall frost (32°F)

Nov 11Nov 26Dec 11Dec 26Jan 102000201020201996: Dec 191998: Dec 262000: Dec 122004: Dec 242005: Dec 82009: Dec 52011: Nov 282013: Dec 162017: Dec 82019: Dec 192022: Dec 22

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 17noneJan 17none
2023nonenonenonenone
2022Feb 5Dec 22noneDec 22
2021Feb 20noneFeb 14none
2020nonenonenonenone
2019noneDec 19nonenone
2018Jan 17noneJan 17none
2017Jan 8Dec 8Jan 8none
2016noneno datanoneno data
2015nonenonenonenone
2014Mar 3nonenonenone
2013noneDec 16nonenone
2012Jan 14nonenonenone
2011Feb 12Nov 28Feb 10none
2010Feb 16noneJan 9none
2009Jan 21Dec 5noneDec 5
2008nonenonenonenone
2007Feb 16nonenonenone
2006nonenonenonenone
2005noneDec 8nonenone
2004noneDec 24noneDec 25
2003Jan 18nonenonenone
2002Mar 4noneMar 4none
2001Jan 4nonenonenone
2000noneDec 12nonenone
1999nonenonenonenone
1998noneDec 26nonenone
1997Jan 16nonenonenone
1996no dataDec 19no dataDec 19

"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.