Last Frost Day

Frost history / Taylor Park, CO

Taylor Park, CO: frost dates by year

Last spring and first fall frost at NOAA station USC00058184, 1951 to 2024, measured from daily minimum temperatures.

Elevation 9,179 ft, 38.818, -106.609. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJun 23Sep 2
EarliestMay 31 (2006)Aug 1 (1977)
LatestJul 31 (1986)Sep 24 (1963)
Trend0.8 days earlier per decade1.5 days later per decade
Years with data7071

At 28°F (hard freeze) the median last spring date is Jun 5 and the median first fall date is Sep 15.

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)

May 15May 30Jun 14Jun 29Jul 14Jul 29Aug 1319601970198019902000201020201951: Jun 241952: Jun 271953: Jun 101954: Jun 141955: Jul 81956: Jun 91957: Jun 241958: Jun 151959: Jun 111960: Jun 281961: Jun 131962: Jul 151963: Jun 271964: Jun 231965: Jul 31966: Jun 151967: Jun 131968: Jul 11969: Jun 271970: Jun 191971: Jul 51972: Jun 271973: Jun 231974: Jun 121975: Jun 301976: Jun 271977: Jun 221978: Jul 71979: Jun 221980: Jun 161981: Jun 161982: Jun 231983: Jul 131986: Jul 311988: Jun 11989: Jun 151990: Jun 221991: Jul 11992: Jul 31993: Jul 61994: Jul 81995: Jul 51996: Jun 241997: Jul 91998: Jun 251999: Jun 132000: Jun 212001: Jun 152002: Jun 132003: Jun 262004: Jun 242005: Jun 142006: May 312007: Jun 92009: Jun 82010: Jun 232011: Jun 272012: Jun 142013: Jun 192014: Jun 202015: Jun 82016: Jun 162017: Jul 12018: Jun 122019: Jun 252020: Jul 12021: Jun 122022: Jun 212023: Jun 262024: Jun 2

First fall frost (32°F)

Jul 14Jul 29Aug 13Aug 28Sep 12Sep 27Oct 1219601970198019902000201020201951: Sep 21952: Sep 21953: Sep 41954: Aug 191955: Sep 31956: Aug 81957: Sep 101958: Sep 151959: Aug 311960: Aug 171961: Sep 31962: Aug 251963: Sep 241964: Aug 211965: Aug 271966: Aug 221967: Aug 211968: Aug 161969: Sep 231970: Sep 41971: Sep 41972: Sep 151973: Sep 31974: Aug 111975: Aug 291976: Sep 21977: Aug 11978: Aug 151979: Sep 11980: Aug 161981: Aug 171982: Sep 131983: Aug 281984: Aug 31985: Aug 101986: Aug 11987: Aug 171988: Sep 51989: Aug 211990: Aug 261991: Sep 91992: Aug 271993: Aug 241994: Sep 51995: Sep 121996: Aug 111997: Sep 231998: Sep 201999: Sep 52000: Sep 122001: Sep 72002: Aug 252003: Sep 112004: Aug 282005: Sep 12006: Sep 32008: Sep 42009: Aug 92010: Sep 72011: Sep 182012: Sep 62013: Sep 202014: Sep 132015: Sep 92016: Sep 52017: Sep 172018: Aug 292019: Sep 102020: Sep 82021: Aug 252022: Sep 11

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
2024Jun 2no dataMay 27no data
2023Jun 26no dataMay 10no data
2022Jun 21Sep 11May 31Oct 8
2021Jun 12Aug 25May 28Sep 21
2020Jul 1Sep 8Jun 10Sep 8
2019Jun 25Sep 10May 31Sep 22
2018Jun 12Aug 29May 21Sep 14
2017Jul 1Sep 17May 29Sep 25
2016Jun 16Sep 5May 28Sep 16
2015Jun 8Sep 9May 20Oct 13
2014Jun 20Sep 13Jun 15Oct 2
2013Jun 19Sep 20Jun 2Sep 24
2012Jun 14Sep 6Jun 12Sep 18
2011Jun 27Sep 18Jun 8Sep 23
2010Jun 23Sep 7May 31Sep 7
2009Jun 8Aug 9May 11Sep 22
2008no dataSep 4no dataOct 7
2007Jun 9no dataJun 8no data
2006May 31Sep 3May 29Sep 17
2005Jun 14Sep 1May 27Sep 15
2004Jun 24Aug 28Jun 1Sep 16
2003Jun 26Sep 11Jun 8Sep 14
2002Jun 13Aug 25May 26Sep 24
2001Jun 15Sep 7Jun 15Sep 9
2000Jun 21Sep 12May 14Sep 24
1999Jun 13Sep 5Jun 5Sep 28
1998Jun 25Sep 20Jun 6Sep 22
1997Jul 9Sep 23Jun 18Oct 5
1996Jun 24Aug 11Jun 7Sep 8
1995Jul 5Sep 12Jun 18Sep 12
1994Jul 8Sep 5Jun 9Sep 15
1993Jul 6Aug 24Jun 26Sep 3
1992Jul 3Aug 27Jun 2Aug 27
1991Jul 1Sep 9May 30Sep 15
1990Jun 22Aug 26Jun 3Oct 4
1989Jun 15Aug 21May 27Sep 11
1988Jun 1Sep 5Jun 1Sep 15
1987no dataAug 17no dataSep 11
1986Jul 31Aug 1Jul 31Aug 1
1985no dataAug 10no dataAug 10
1984no dataAug 3no dataAug 27
1983Jul 13Aug 28Jul 1Sep 5
1982Jun 23Sep 13Jun 23Sep 14
1981Jun 16Aug 17Jun 16Sep 15
1980Jun 16Aug 16Jun 15Aug 17
1979Jun 22Sep 1Jun 19Sep 15
1978Jul 7Aug 15May 29Sep 13
1977Jun 22Aug 1May 31Sep 14
1976Jun 27Sep 2Jun 25Sep 29
1975Jun 30Aug 29Jun 26Sep 20
1974Jun 12Aug 11Jun 10Sep 3
1973Jun 23Sep 3Jun 20Sep 3
1972Jun 27Sep 15May 26Sep 17
1971Jul 5Sep 4Jun 11Sep 5
1970Jun 19Sep 4Jun 16Sep 15
1969Jun 27Sep 23Jun 27Sep 24
1968Jul 1Aug 16Jul 1Aug 24
1967Jun 13Aug 21Jun 8Sep 13
1966Jun 15Aug 22May 26Sep 16
1965Jul 3Aug 27Jun 7Sep 21
1964Jun 23Aug 21Jun 23Aug 28
1963Jun 27Sep 24May 31Sep 28
1962Jul 15Aug 25Jun 9Sep 1
1961Jun 13Sep 3Jun 4Sep 4
1960Jun 28Aug 17May 31Sep 25
1959Jun 11Aug 31Jun 4Sep 2
1958Jun 15Sep 15May 19Sep 15
1957Jun 24Sep 10Jun 18Sep 12
1956Jun 9Aug 8May 18Sep 1
1955Jul 8Sep 3Jun 7Sep 21
1954Jun 14Aug 19Jun 14Sep 19
1953Jun 10Sep 4Jun 3Sep 24
1952Jun 27Sep 2May 29Oct 6
1951Jun 24Sep 2Jun 13Sep 9

"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.