Last Frost Day

Frost history / Wendover Ap Awos, UT

Wendover Ap Awos, UT: frost dates by year

Last spring and first fall frost at NOAA station USW00024193, 1951 to 2017, measured from daily minimum temperatures.

Elevation 4,237 ft, 40.721, -114.036. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 19Oct 24
EarliestMar 16 (1990)Sep 11 (2010)
LatestMay 17 (2016)Nov 11 (1987)
Trendlittle change (less than half a day per decade)little change (less than half a day per decade)
Years with data6659

At 28°F (hard freeze) the median last spring date is Mar 31 and the median first fall date is Nov 1.

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 1Mar 16Mar 31Apr 15Apr 30May 15May 301960197019801990200020101951: Apr 111952: Apr 91953: Apr 291954: Apr 71955: Apr 281956: Apr 71957: Apr 81958: Apr 251960: Apr 251961: May 51962: Apr 301963: Apr 241964: May 31965: May 71966: Apr 271967: May 11968: May 61969: Mar 261970: Apr 271971: Apr 21972: Apr 301973: Apr 191974: Mar 241975: Apr 281976: Apr 161977: Apr 201978: Apr 221979: Apr 201980: Apr 81981: May 71982: Apr 211983: Apr 161984: Apr 41985: Apr 241986: Apr 141987: Mar 311988: Apr 261989: Apr 41990: Mar 161991: Apr 181992: Mar 231993: Apr 131994: Apr 81995: Apr 11996: Apr 291997: May 21998: Mar 311999: May 172000: Mar 292001: Apr 132002: May 92003: Apr 82004: Mar 292005: Apr 142006: Apr 192007: Apr 182008: May 12009: Apr 272010: May 72011: May 22012: Apr 82013: Apr 252014: Apr 142015: Apr 152016: May 172017: Apr 10

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 261960197019801990200020101951: Oct 221952: Oct 151953: Nov 71954: Oct 271955: Oct 311956: Oct 241957: Oct 291958: Oct 221960: Oct 301961: Oct 231962: Nov 71963: Nov 11964: Oct 191965: Sep 171966: Oct 141967: Oct 271968: Oct 91969: Oct 51970: Oct 161971: Oct 171972: Oct 281973: Oct 271974: Oct 221975: Oct 231977: Nov 11978: Oct 261979: Oct 311980: Oct 231981: Oct 231982: Oct 191983: Nov 61984: Oct 151985: Oct 91987: Nov 111988: Nov 71989: Oct 291990: Oct 171991: Oct 241992: Nov 41993: Oct 241994: Oct 301995: Oct 141996: Oct 171997: Oct 251998: Nov 31999: Oct 172000: Nov 22001: Oct 242003: Oct 142004: Oct 312006: Oct 222007: Oct 222008: Oct 132010: Sep 112012: Oct 262013: Oct 162014: Oct 282015: Nov 72016: Nov 3

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

"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.