Last Frost Day

Frost history / Blanding, UT

Blanding, UT: frost dates by year

Last spring and first fall frost at NOAA station USC00420738, 1951 to 2021, measured from daily minimum temperatures.

Elevation 6,032 ft, 37.613, -109.485. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 7Oct 13
EarliestMar 25 (1992)Sep 13 (1952)
LatestJun 2 (1955)Nov 15 (2005)
Trend2.3 days earlier per decade0.9 days later per decade
Years with data6968

At 28°F (hard freeze) the median last spring date is Apr 21 and the median first fall date is Oct 25.

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 16Mar 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201951: Jun 21952: Apr 161953: May 291954: May 31955: Jun 21956: Apr 281957: May 221958: Apr 271959: May 41960: May 201961: May 81962: May 181963: May 121964: May 81965: May 91966: Apr 281967: May 151968: May 71969: Apr 271970: May 21971: May 231972: May 111973: May 61974: May 211975: May 231976: Apr 281977: May 191978: May 81979: May 311980: May 251981: May 211982: Apr 241983: May 171984: May 71985: May 141986: May 101987: Apr 201988: May 71990: May 91991: May 51992: Mar 251993: May 51994: May 81995: May 81996: Apr 291997: May 21998: Apr 191999: May 52000: May 122001: May 42002: Apr 212003: May 102004: Apr 182006: Apr 202007: May 62008: May 22009: Apr 262010: May 122011: May 22012: Apr 162013: May 22014: May 122015: May 112016: May 12017: May 192018: Apr 182019: May 202020: Apr 162021: Apr 17

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 61952: Sep 131953: Oct 241954: Oct 141955: Oct 61956: Oct 141957: Oct 221958: Oct 211959: Oct 41960: Oct 191961: Sep 301962: Nov 71963: Nov 11964: Oct 231965: Sep 211966: Oct 131967: Oct 171968: Oct 161969: Oct 41970: Oct 71971: Sep 181972: Oct 291973: Oct 101974: Oct 291975: Oct 81976: Oct 91977: Oct 11978: Sep 201979: Oct 211980: Oct 151981: Oct 141982: Oct 11983: Nov 81984: Oct 131985: Sep 291986: Oct 41987: Nov 81988: Nov 61990: Oct 91991: Oct 281992: Oct 81993: Oct 271994: Oct 151995: Oct 51996: Oct 201997: Oct 121998: Oct 61999: Oct 172000: Sep 242001: Oct 242002: Oct 292003: Nov 32004: Oct 232005: Nov 152006: Sep 232007: Sep 302008: Oct 122009: Oct 62010: Oct 252011: Oct 72013: Oct 42014: Nov 32015: Nov 42016: Oct 42017: Oct 102018: Oct 152020: Oct 262021: Oct 12

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

"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.