Last Frost Day

Frost history / Cabin Creek, CO

Cabin Creek, CO: frost dates by year

Last spring and first fall frost at NOAA station USC00051186, 1968 to 2025, measured from daily minimum temperatures.

Elevation 10,020 ft, 39.655, -105.709. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJun 14Sep 13
EarliestMay 13 (2023)Aug 7 (1997)
LatestJul 30 (1971)Oct 21 (2015)
Trend3.6 days earlier per decade1.9 days later per decade
Years with data5556

At 28°F (hard freeze) the median last spring date is May 31 and the median first fall date is Sep 22.

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 30May 15May 30Jun 14Jun 29Jul 14Jul 29Aug 131970198019902000201020201968: Jun 91969: Jun 261970: Jun 111971: Jul 301972: May 301973: Jun 191974: Jun 111975: Jun 251976: Jun 191977: Jun 301978: Jun 81979: Jun 101980: Jun 71981: Jun 181982: Jun 191983: Jun 151984: Jun 111985: Jun 271986: Jun 131987: Jul 131988: Jun 141989: Jun 241990: Jun 141991: Jun 241992: Jul 221993: Jul 51994: Jul 261995: Jul 261996: Jun 301997: Jul 61999: Jun 152001: Jun 142002: Jun 52004: Jun 242005: Jun 152006: Jun 12007: Jun 92008: Jun 132009: Jun 32010: Jun 162011: Jun 212012: Jun 122013: Jun 22014: Jun 102015: May 312016: Jun 12017: May 292018: May 212019: Jun 232020: Jun 102021: Jun 22022: Jun 22023: May 132024: Jun 202025: May 27

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 271970198019902000201020201968: Aug 301969: Sep 231970: Sep 131971: Sep 41972: Sep 211973: Sep 171974: Aug 271975: Sep 191976: Sep 91977: Sep 221978: Aug 141979: Sep 121980: Sep 221981: Sep 171982: Sep 121983: Sep 201984: Sep 171985: Sep 81986: Aug 311988: Sep 31989: Sep 91990: Sep 181991: Sep 91992: Aug 251993: Aug 311994: Sep 51995: Sep 81996: Aug 81997: Aug 71998: Sep 231999: Sep 132000: Sep 202001: Sep 72002: Sep 192003: Sep 112004: Aug 152005: Sep 152006: Sep 132007: Sep 182008: Sep 82009: Aug 102010: Sep 112011: Sep 222012: Sep 142013: Sep 202014: Sep 122015: Oct 212016: Sep 162017: Sep 242019: Oct 32020: Sep 82021: Sep 212022: Oct 62023: Sep 162024: Sep 222025: Sep 17

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
2025May 27Sep 17May 17Oct 6
2024Jun 20Sep 22May 25Oct 19
2023May 13Sep 16Apr 29Sep 17
2022Jun 2Oct 6Jun 2Oct 19
2021Jun 2Sep 21May 24Sep 22
2020Jun 10Sep 8Jun 9Sep 8
2019Jun 23Oct 3May 31Oct 3
2018May 21no dataMay 5no data
2017May 29Sep 24May 29Sep 25
2016Jun 1Sep 16May 19Sep 26
2015May 31Oct 21May 24Oct 24
2014Jun 10Sep 12May 15Sep 12
2013Jun 2Sep 20May 12Sep 28
2012Jun 12Sep 14May 15Oct 4
2011Jun 21Sep 22May 21Oct 7
2010Jun 16Sep 11May 26Oct 13
2009Jun 3Aug 10May 11Sep 22
2008Jun 13Sep 8May 24Oct 7
2007Jun 9Sep 18Jun 8Sep 25
2006Jun 1Sep 13May 12Sep 17
2005Jun 15Sep 15Jun 12Sep 15
2004Jun 24Aug 15May 31Sep 22
2003no dataSep 11no dataSep 14
2002Jun 5Sep 19May 25Sep 19
2001Jun 14Sep 7Jun 14Sep 8
2000no dataSep 20no dataSep 23
1999Jun 15Sep 13May 18Sep 21
1998no dataSep 23no dataOct 4
1997Jul 6Aug 7Jun 16Aug 7
1996Jun 30Aug 8Jun 8Sep 7
1995Jul 26Sep 8Jul 1Sep 12
1994Jul 26Sep 5Jun 10Sep 6
1993Jul 5Aug 31Jun 10Sep 3
1992Jul 22Aug 25Jul 22Aug 27
1991Jun 24Sep 9May 18Sep 15
1990Jun 14Sep 18Jun 3Oct 7
1989Jun 24Sep 9Jun 23Sep 9
1988Jun 14Sep 3Jun 1Sep 12
1987Jul 13no dataMay 27no data
1986Jun 13Aug 31Jun 13Sep 24
1985Jun 27Sep 8Jun 27Sep 22
1984Jun 11Sep 17Jun 9Sep 25
1983Jun 15Sep 20Jun 14Sep 20
1982Jun 19Sep 12Jun 19Sep 14
1981Jun 18Sep 17Jun 15Oct 17
1980Jun 7Sep 22May 26Sep 25
1979Jun 10Sep 12Jun 10Sep 14
1978Jun 8Aug 14May 22Aug 15
1977Jun 30Sep 22May 21Oct 1
1976Jun 19Sep 9Jun 14Sep 28
1975Jun 25Sep 19Jun 13Sep 19
1974Jun 11Aug 27Jun 9Sep 3
1973Jun 19Sep 17Jun 19Sep 26
1972May 30Sep 21May 29Sep 21
1971Jul 30Sep 4May 30Sep 16
1970Jun 11Sep 13Jun 2Sep 22
1969Jun 26Sep 23Jun 26Oct 3
1968Jun 9Aug 30May 19Sep 16

"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.