Last Frost Day

Frost history / Cordova M K Smith Ap, AK

Cordova M K Smith Ap, AK: frost dates by year

Last spring and first fall frost at NOAA station USW00026410, 1951 to 2024, measured from daily minimum temperatures.

Elevation 31 ft, 60.489, -145.451. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 22Sep 15
EarliestMay 4 (1968)Aug 13 (1969)
LatestJun 28 (1971)Oct 13 (2022)
Trendlittle change (less than half a day per decade)1.8 days later per decade
Years with data7373

At 28°F (hard freeze) the median last spring date is May 7 and the median first fall date is Sep 30.

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 29Jul 1419601970198019902000201020201951: May 281952: Jun 91953: May 211954: May 161955: Jun 71956: Jun 61957: May 131958: May 281959: May 231960: Jun 11961: Jun 41962: May 291963: May 181964: May 211965: Jun 151966: May 281967: May 261968: May 41969: May 171970: May 41971: Jun 281972: May 221973: May 271974: May 221975: May 141976: Jun 21977: May 211978: May 271979: Jun 121980: May 121981: May 61982: May 251983: Jun 51984: May 161985: May 221986: May 191987: May 141988: May 161989: May 261990: May 251992: May 201993: May 101994: May 161995: Jun 21996: May 181997: May 181998: May 141999: May 142000: May 262001: May 272002: May 132003: May 282004: May 52005: May 182006: Jun 52007: May 202008: Jun 232009: Jun 272010: May 172011: Jun 172012: Jun 42013: May 242014: May 252015: May 62016: May 112017: May 312018: Jun 132019: May 212020: May 272021: May 242022: May 192023: May 222024: May 20

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201951: Sep 241952: Sep 61953: Sep 211954: Sep 131955: Sep 61956: Aug 311957: Oct 11958: Sep 81959: Sep 61960: Sep 11961: Aug 261962: Sep 11963: Oct 21964: Sep 241965: Aug 261966: Sep 81967: Sep 211968: Sep 211969: Aug 131970: Sep 101971: Aug 281972: Sep 171973: Sep 111974: Sep 91975: Aug 301976: Sep 51977: Sep 251978: Sep 171979: Sep 291980: Sep 41981: Sep 261982: Sep 231983: Sep 51984: Aug 281985: Sep 101986: Sep 61987: Sep 11988: Sep 61989: Sep 151990: Oct 31991: Sep 191992: Sep 101993: Sep 181994: Sep 281995: Oct 31996: Sep 71997: Sep 151998: Oct 11999: Sep 252000: Sep 92001: Sep 102002: Sep 182003: Sep 142004: Sep 52005: Oct 22006: Sep 182007: Sep 172008: Sep 232009: Sep 152010: Sep 22011: Sep 232012: Sep 102013: Sep 202014: Sep 242015: Sep 22016: Sep 262017: Sep 302018: Sep 262019: Sep 242020: Sep 112021: Sep 182022: Oct 132023: Sep 22

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

"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.