Last Frost Day

Frost history / Albin, WY

Albin, WY: frost dates by year

Last spring and first fall frost at NOAA station USC00480080, 1951 to 2008, measured from daily minimum temperatures.

Elevation 5,345 ft, 41.400, -104.102. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Sep 23
EarliestApr 21 (1987)Sep 3 (1974)
LatestJun 14 (1969)Oct 27 (1963)
Trend0.6 days earlier per decadelittle change (less than half a day per decade)
Years with data5556

At 28°F (hard freeze) the median last spring date is May 7 and the median first fall date is Oct 5.

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 29196019701980199020001951: Jun 41952: May 111954: Jun 31955: May 41956: May 141957: May 171958: May 11959: May 221960: May 201961: May 151962: May 151963: Apr 281964: Jun 21965: May 271966: Jun 91967: May 161969: Jun 141970: May 161971: May 231972: May 71973: May 151974: May 141975: May 261976: May 171977: Apr 221978: May 131979: May 121980: May 141981: May 121982: May 71983: May 311984: May 81985: May 151986: May 231987: Apr 211988: May 91989: May 61990: May 171991: May 61992: May 261993: May 91994: May 41995: Jun 91996: May 101997: May 121999: May 122000: May 142001: May 212002: May 242003: May 202004: May 142005: May 122006: May 112007: Jun 82008: May 14

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11196019701980199020001952: Oct 21953: Sep 211954: Sep 301955: Sep 251956: Oct 191957: Sep 221958: Sep 251959: Sep 281960: Sep 301961: Sep 131962: Sep 81963: Oct 271964: Sep 201965: Sep 161966: Sep 301967: Sep 131969: Oct 31970: Sep 121971: Sep 161972: Sep 211973: Sep 171974: Sep 31975: Sep 191976: Sep 281977: Sep 221978: Sep 191979: Oct 41980: Sep 221981: Oct 11982: Oct 61983: Sep 191984: Sep 241985: Sep 201986: Sep 301987: Oct 71988: Oct 51989: Sep 111990: Oct 31991: Sep 241992: Sep 181993: Sep 131994: Sep 211995: Sep 201996: Sep 261997: Oct 91998: Oct 51999: Sep 282000: Sep 222001: Sep 92002: Sep 222003: Sep 182004: Oct 142005: Oct 52006: Sep 232007: Sep 252008: Oct 10

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

"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.