Last Frost Day

Frost history / Cimarron 4 Sw, NM

Cimarron 4 Sw, NM: frost dates by year

Last spring and first fall frost at NOAA station USC00291813, 1951 to 2024, measured from daily minimum temperatures.

Elevation 6,540 ft, 36.466, -104.946. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Oct 3
EarliestApr 17 (2012)Sep 9 (2001)
LatestJun 8 (2007)Oct 31 (1963)
Trendlittle change (less than half a day per decade)0.9 days earlier per decade
Years with data7164

At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Oct 13.

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)

Mar 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201951: Apr 301952: May 181953: May 141954: May 31955: May 181956: May 151957: Apr 281958: Apr 301959: May 61960: May 201961: May 91962: May 11963: Apr 291964: Jun 11965: May 101966: Apr 281967: May 151968: May 171969: May 71970: May 151971: May 241972: May 151973: Jun 51974: May 211975: May 241976: Apr 301977: Apr 241978: May 181979: May 141980: May 131981: May 181982: May 241983: Jun 31984: May 91985: May 131986: May 171987: Apr 241988: May 231989: May 51990: May 171991: May 61992: Apr 261993: May 111994: May 41995: May 301996: Apr 291997: May 51998: May 81999: May 72001: May 222002: May 242003: May 102004: May 22005: May 122006: Apr 302007: Jun 82008: May 112009: May 182010: May 132011: May 202012: Apr 172013: May 72014: May 152015: May 92016: May 92018: Apr 272019: May 212020: May 102021: Apr 242022: May 252024: May 13

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 161952: Oct 61953: Oct 251954: Oct 151955: Oct 71956: Oct 191957: Oct 241958: Oct 211959: Oct 11960: Oct 151961: Oct 21962: Sep 101963: Oct 311964: Oct 141965: Sep 211966: Oct 41967: Oct 121968: Sep 171969: Oct 61970: Sep 251972: Sep 221973: Sep 281974: Sep 281975: Sep 251976: Sep 281978: Sep 211981: Oct 191982: Oct 21983: Sep 211984: Sep 261985: Sep 241986: Sep 301987: Oct 61988: Sep 291989: Oct 161990: Oct 91991: Oct 141992: Sep 271993: Sep 151994: Oct 81995: Sep 211996: Sep 221997: Oct 91998: Oct 51999: Sep 292000: Sep 252001: Sep 92002: Oct 52003: Sep 192004: Oct 62005: Oct 72006: Sep 182007: Oct 82008: Oct 142009: Sep 222010: Oct 142011: Oct 102012: Sep 152013: Sep 282014: Oct 42015: Oct 172016: Oct 72017: Oct 72019: Oct 3

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
2024May 13no dataApr 29no data
2022May 25no dataMay 3no data
2021Apr 24no dataApr 24no data
2020May 10no dataMay 9no data
2019May 21Oct 3Apr 15Oct 7
2018Apr 27no dataApr 27no data
2017no dataOct 7no dataOct 10
2016May 9Oct 7May 2Oct 7
2015May 9Oct 17Apr 19Oct 28
2014May 15Oct 4May 15Oct 14
2013May 7Sep 28May 4Sep 28
2012Apr 17Sep 15Apr 17Oct 8
2011May 20Oct 10May 3Oct 18
2010May 13Oct 14May 13Oct 26
2009May 18Sep 22Apr 18Sep 23
2008May 11Oct 14May 10Oct 16
2007Jun 8Oct 8May 5Oct 8
2006Apr 30Sep 18Apr 26Oct 19
2005May 12Oct 7Apr 22Oct 12
2004May 2Oct 6Apr 25Oct 14
2003May 10Sep 19May 10Oct 14
2002May 24Oct 5Apr 25Oct 6
2001May 22Sep 9May 22Oct 11
2000no dataSep 25no dataSep 25
1999May 7Sep 29May 7Sep 29
1998May 8Oct 5Apr 22Oct 6
1997May 5Oct 9May 3Oct 13
1996Apr 29Sep 22Apr 29Oct 18
1995May 30Sep 21Apr 25Oct 6
1994May 4Oct 8Apr 28Oct 8
1993May 11Sep 15May 3Oct 11
1992Apr 26Sep 27Apr 26Oct 8
1991May 6Oct 14May 6Oct 19
1990May 17Oct 9May 10Oct 9
1989May 5Oct 16Apr 29Oct 18
1988May 23Sep 29May 5Oct 26
1987Apr 24Oct 6Apr 22Oct 11
1986May 17Sep 30Apr 15Oct 12
1985May 13Sep 24May 13Sep 30
1984May 9Sep 26May 8Sep 26
1983Jun 3Sep 21May 19Sep 21
1982May 24Oct 2May 13Oct 4
1981May 18Oct 19May 14Oct 19
1980May 13no dataApr 26no data
1979May 14no dataMay 10no data
1978May 18Sep 21May 9Oct 28
1977Apr 24no dataApr 7no data
1976Apr 30Sep 28Apr 30Oct 8
1975May 24Sep 25May 12Oct 14
1974May 21Sep 28Apr 22Sep 28
1973Jun 5Sep 28May 7Oct 11
1972May 15Sep 22May 13Oct 22
1971May 24no dataMay 19no data
1970May 15Sep 25May 15Sep 25
1969May 7Oct 6Apr 28Oct 6
1968May 17Sep 17Apr 29Oct 17
1967May 15Oct 12May 15Oct 13
1966Apr 28Oct 4Apr 21Oct 15
1965May 10Sep 21May 9Oct 18
1964Jun 1Oct 14Apr 14Oct 23
1963Apr 29Oct 31Apr 23Nov 1
1962May 1Sep 10May 1Oct 24
1961May 9Oct 2Apr 17Oct 23
1960May 20Oct 15Apr 26Oct 30
1959May 6Oct 1Apr 22Oct 30
1958Apr 30Oct 21Apr 24Oct 22
1957Apr 28Oct 24Apr 14Nov 7
1956May 15Oct 19Apr 24Oct 31
1955May 18Oct 7Apr 13Oct 7
1954May 3Oct 15May 3Oct 26
1953May 14Oct 25May 14Nov 7
1952May 18Oct 6Apr 13Oct 6
1951Apr 30Sep 16Apr 16Oct 7

"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.