Last Frost Day

Frost history / Lybrook, NM

Lybrook, NM: frost dates by year

Last spring and first fall frost at NOAA station USC00295290, 1951 to 2007, measured from daily minimum temperatures.

Elevation 7,150 ft, 36.230, -107.547. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Oct 8
EarliestApr 27 (1987)Sep 3 (1961)
LatestJun 20 (1973)Oct 29 (1974)
Trend3.7 days earlier per decadelittle change (less than half a day per decade)
Years with data3539

At 28°F (hard freeze) the median last spring date is May 3 and the median first fall date is Oct 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)

Apr 15Apr 30May 15May 30Jun 14Jun 29196019701980199020001952: May 251953: May 291954: Jun 71956: May 161957: Jun 171958: May 91959: May 261960: May 201961: May 141962: May 281963: May 121964: Jun 11968: May 81970: Jun 121971: Jun 21972: May 131973: Jun 201974: Jun 91975: May 91976: May 91987: Apr 271988: May 301989: Apr 301990: May 21991: May 121993: May 101994: Apr 301995: May 81996: Jun 31997: May 41998: May 151999: May 72001: May 62003: May 112007: May 25

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11196019701980199020001951: Oct 61952: Oct 161953: Oct 141954: Oct 151956: Oct 141957: Oct 131958: Sep 251959: Sep 251960: Oct 81961: Sep 31962: Oct 131963: Oct 141964: Oct 211967: Oct 71968: Oct 161970: Sep 231971: Sep 171972: Oct 211973: Sep 31974: Oct 291975: Oct 91985: Sep 301986: Oct 41987: Oct 191988: Sep 301989: Oct 181990: Oct 81991: Oct 271992: Oct 81993: Oct 181994: Oct 151995: Oct 51996: Sep 191997: Oct 91999: Sep 292001: Oct 112002: Oct 42006: Sep 182007: Oct 6

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
2007May 25Oct 6Apr 19Oct 21
2006no dataSep 18no dataOct 19
2003May 11no dataApr 24no data
2002no dataOct 4no dataOct 4
2001May 6Oct 11Apr 22Nov 19
1999May 7Sep 29May 7Oct 17
1998May 15no dataApr 19no data
1997May 4Oct 9May 3Oct 13
1996Jun 3Sep 19Apr 29Oct 18
1995May 8Oct 5May 6Oct 22
1994Apr 30Oct 15Apr 30Oct 18
1993May 10Oct 18May 10Oct 27
1992no dataOct 8no dataNov 1
1991May 12Oct 27May 1Oct 28
1990May 2Oct 8Apr 2Oct 9
1989Apr 30Oct 18Apr 10Oct 19
1988May 30Sep 30May 3Nov 12
1987Apr 27Oct 19Apr 20Nov 6
1986no dataOct 4no dataOct 12
1985no dataSep 30no dataOct 13
1976May 9no dataApr 27no data
1975May 9Oct 9Apr 30Oct 14
1974Jun 9Oct 29Jun 9Oct 30
1973Jun 20Sep 3May 28Oct 11
1972May 13Oct 21May 12Oct 30
1971Jun 2Sep 17Jun 2Sep 18
1970Jun 12Sep 23May 15Sep 26
1968May 8Oct 16May 7Oct 16
1967no dataOct 7no dataOct 7
1964Jun 1Oct 21May 9Oct 24
1963May 12Oct 14May 12Nov 1
1962May 28Oct 13May 28Nov 6
1961May 14Sep 3May 13Sep 4
1960May 20Oct 8May 20Oct 20
1959May 26Sep 25May 10Oct 8
1958May 9Sep 25Apr 24Oct 21
1957Jun 17Oct 13Apr 28Oct 23
1956May 16Oct 14Apr 21Oct 20
1954Jun 7Oct 15Mar 28Oct 15
1953May 29Oct 14May 12Oct 26
1952May 25Oct 16Apr 13Nov 4
1951no dataOct 6no dataOct 22

"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.