Last Frost Day

Frost history / Rocksprings, TX

Rocksprings, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00417706, 1951 to 2024, measured from daily minimum temperatures.

Elevation 2,382 ft, 30.024, -100.212. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMar 11Nov 16
EarliestFeb 5 (2000)Oct 20 (1976)
LatestApr 14 (1957)Dec 20 (1965)
Trend4.1 days earlier per decadelittle change (less than half a day per decade)
Years with data4846, 1 with no freeze

At 28°F (hard freeze) the median last spring date is Mar 5 and the median first fall date is Dec 2.

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)

Jan 30Feb 14Mar 1Mar 16Mar 31Apr 15Apr 3019601970198019902000201020201951: Mar 191957: Apr 141959: Apr 131963: Mar 81965: Mar 261966: Mar 251967: Mar 81968: Mar 231969: Mar 241970: Apr 31971: Mar 71972: Mar 311973: Apr 101974: Mar 241975: Apr 31976: Feb 221977: Mar 71978: Mar 91979: Mar 61980: Apr 131981: Mar 191982: Mar 71983: Apr 91984: Mar 71985: Mar 271986: Feb 121992: Mar 111993: Mar 151994: Apr 71995: Mar 91996: Apr 51997: Apr 121998: Mar 121999: Feb 122000: Feb 52001: Mar 12006: Mar 252008: Mar 82009: Mar 22010: Mar 222011: Mar 62015: Mar 62018: Feb 222019: Mar 62020: Feb 272021: Feb 202023: Mar 182024: Feb 18

First fall frost (32°F)

Oct 12Oct 27Nov 11Nov 26Dec 11Dec 2619601970198019902000201020201956: Nov 91958: Nov 281959: Nov 61960: Nov 101962: Dec 61963: Nov 291964: Nov 201965: Dec 201967: Dec 31968: Nov 91970: Nov 31971: Dec 31972: Nov 161973: Nov 281974: Nov 251975: Nov 131976: Oct 201977: Nov 101978: Dec 41979: Nov 111980: Oct 301981: Nov 101982: Nov 41983: Nov 101984: Nov 221985: Dec 11993: Oct 301995: Dec 91996: Nov 241997: Nov 111998: Dec 131999: Nov 242000: Nov 92001: Nov 282005: Nov 162006: Nov 302008: Nov 162009: Dec 32010: Nov 262016: Dec 82018: Nov 122019: Oct 312020: Oct 272022: Nov 122023: Dec 10

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
2024Feb 18no dataFeb 18no data
2023Mar 18Dec 10Feb 17none
2022no dataNov 12no dataDec 22
2021Feb 20noneFeb 16none
2020Feb 27Oct 27Feb 6Dec 14
2019Mar 6Oct 31Mar 5Oct 31
2018Feb 22Nov 12Feb 12Nov 14
2016no dataDec 8no dataDec 18
2015Mar 6no dataMar 5no data
2011Mar 6no dataFeb 12no data
2010Mar 22Nov 26Mar 21Dec 6
2009Mar 2Dec 3Mar 2Dec 5
2008Mar 8Nov 16Mar 8Dec 5
2006Mar 25Nov 30Mar 25Nov 30
2005no dataNov 16no dataDec 8
2001Mar 1Nov 28Feb 11Nov 29
2000Feb 5Nov 9Jan 30Dec 12
1999Feb 12Nov 24Jan 9none
1998Mar 12Dec 13Mar 11Dec 22
1997Apr 12Nov 11Feb 8Nov 16
1996Apr 5Nov 24Mar 9Nov 24
1995Mar 9Dec 9Mar 9Dec 10
1994Apr 7no dataMar 10no data
1993Mar 15Oct 30Mar 14Oct 30
1992Mar 11no dataJan 17no data
1986Feb 12no dataFeb 12no data
1985Mar 27Dec 1Mar 27Dec 2
1984Mar 7Nov 22Mar 6none
1983Apr 9Nov 10Jan 27Dec 17
1982Mar 7Nov 4Mar 7Nov 24
1981Mar 19Nov 10Feb 12Dec 18
1980Apr 13Oct 30Mar 18Oct 30
1979Mar 6Nov 11Feb 19Nov 23
1978Mar 9Dec 4Mar 4Dec 4
1977Mar 7Nov 10Feb 27Dec 6
1976Feb 22Oct 20Feb 22Nov 13
1975Apr 3Nov 13Apr 3Nov 13
1974Mar 24Nov 25Mar 24Nov 30
1973Apr 10Nov 28Apr 9Dec 16
1972Mar 31Nov 16Feb 8Nov 21
1971Mar 7Dec 3Mar 4none
1970Apr 3Nov 3Mar 13Nov 5
1969Mar 24no dataMar 12no data
1968Mar 23Nov 9Mar 23Dec 1
1967Mar 8Dec 3Mar 8Dec 3
1966Mar 25no dataMar 5no data
1965Mar 26Dec 20Mar 26none
1964no dataNov 20no dataNov 22
1963Mar 8Nov 29Feb 22Dec 3
1962no dataDec 6no dataDec 12
1960no dataNov 10no dataDec 13
1959Apr 13Nov 6Feb 3Nov 6
1958no dataNov 28no dataNov 29
1957Apr 14no dataJan 18no data
1956no dataNov 9no dataDec 9
1951Mar 19no dataMar 13no data

"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.