Last Frost Day

Frost history / E Tawas, MI

E Tawas, MI: frost dates by year

Last spring and first fall frost at NOAA station USC00202423, 1951 to 2025, measured from daily minimum temperatures.

Elevation 586 ft, 44.284, -83.504. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 15Oct 2
EarliestApr 21 (2011)Aug 29 (1982)
LatestJun 11 (1972)Oct 24 (1968)
Trend1.1 days earlier per decade1.4 days later per decade
Years with data6967

At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Oct 18.

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 2919601970198019902000201020201951: May 131952: May 171953: May 151954: May 261955: May 201956: May 241957: Jun 81960: May 21961: May 301962: May 101963: May 241964: Jun 51965: Apr 291966: Jun 21967: May 231968: May 111969: May 261970: May 61971: May 141972: Jun 111973: May 191974: May 101975: May 131977: May 151979: May 221982: May 41983: May 271984: May 141985: May 291986: May 41987: May 131988: May 141989: May 81990: May 21991: May 101992: May 251993: Apr 261994: May 261995: Apr 251996: May 221997: May 171998: Jun 41999: May 92000: Apr 292001: May 132002: May 212003: May 42004: May 42005: May 172006: May 62007: May 212008: May 282009: May 312010: May 102011: Apr 212012: May 172013: May 132014: May 172015: May 232016: May 182017: May 92018: Apr 302019: May 82020: May 132021: May 302022: May 232023: May 262024: Apr 262025: May 9

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 291952: Oct 31953: Oct 71954: Oct 71955: Sep 121959: Sep 171960: Oct 81961: Sep 291962: Oct 11963: Oct 131965: Sep 261966: Sep 261967: Sep 231968: Oct 241969: Oct 151970: Sep 291971: Sep 251972: Oct 91973: Sep 161974: Sep 221975: Sep 141976: Sep 241978: Oct 81982: Aug 291983: Sep 241984: Sep 271985: Oct 31986: Oct 181987: Oct 91988: Oct 61989: Sep 241990: Sep 181991: Sep 211992: Sep 231993: Sep 291994: Oct 91995: Sep 221996: Oct 21997: Oct 151998: Oct 211999: Sep 212000: Sep 272001: Oct 72002: Oct 82003: Oct 12004: Sep 302005: Oct 172006: Sep 292007: Oct 122008: Oct 32009: Oct 12010: Oct 52011: Sep 162012: Oct 72013: Sep 142014: Oct 92015: Oct 102016: Oct 102017: Oct 162018: Oct 162019: Oct 152020: Sep 192021: Oct 222022: Sep 292023: Oct 232024: Oct 162025: Oct 9

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
2025May 9Oct 9Apr 17Oct 26
2024Apr 26Oct 16Apr 26Oct 16
2023May 26Oct 23May 18Oct 23
2022May 23Sep 29Apr 30Oct 27
2021May 30Oct 22May 28Oct 26
2020May 13Sep 19May 13Oct 30
2019May 8Oct 15Apr 5Oct 15
2018Apr 30Oct 16Apr 30Oct 18
2017May 9Oct 16Mar 29Oct 26
2016May 18Oct 10Apr 30Oct 26
2015May 23Oct 10Apr 25Oct 17
2014May 17Oct 9Apr 24Oct 11
2013May 13Sep 14Apr 26Oct 23
2012May 17Oct 7Apr 29Oct 7
2011Apr 21Sep 16Apr 19Oct 22
2010May 10Oct 5Apr 29Nov 1
2009May 31Oct 1May 18Oct 11
2008May 28Oct 3Apr 30Oct 22
2007May 21Oct 12Apr 15Oct 28
2006May 6Sep 29Apr 28Oct 25
2005May 17Oct 17May 4Oct 29
2004May 4Sep 30May 4Oct 5
2003May 4Oct 1May 4Oct 6
2002May 21Oct 8May 21Oct 14
2001May 13Oct 7Apr 19Oct 7
2000Apr 29Sep 27Apr 26Oct 29
1999May 9Sep 21Apr 24Oct 6
1998Jun 4Oct 21Apr 27Nov 11
1997May 17Oct 15May 6Oct 17
1996May 22Oct 2Apr 27Oct 3
1995Apr 25Sep 22Apr 23Oct 16
1994May 26Oct 9Apr 23Nov 1
1993Apr 26Sep 29Apr 26Sep 29
1992May 25Sep 23Apr 15Oct 18
1991May 10Sep 21Apr 11Sep 28
1990May 2Sep 18Apr 18Oct 25
1989May 8Sep 24May 7Oct 4
1988May 14Oct 6Apr 22Oct 12
1987May 13Oct 9May 5Oct 13
1986May 4Oct 18May 3Nov 2
1985May 29Oct 3Apr 12Oct 17
1984May 14Sep 27Apr 12Oct 24
1983May 27Sep 24May 17Oct 27
1982May 4Aug 29Apr 29Oct 17
1979May 22no dataMay 5no data
1978no dataOct 8no dataOct 15
1977May 15no dataMay 10no data
1976no dataSep 24no dataSep 24
1975May 13Sep 14Apr 27Oct 26
1974May 10Sep 22May 7Oct 2
1973May 19Sep 16May 18Oct 19
1972Jun 11Oct 9Jun 11Oct 10
1971May 14Sep 25Apr 24Oct 8
1970May 6Sep 29May 6Nov 1
1969May 26Oct 15May 26Oct 22
1968May 11Oct 24May 7Oct 30
1967May 23Sep 23May 6Oct 20
1966Jun 2Sep 26May 13Oct 18
1965Apr 29Sep 26Apr 25Oct 5
1964Jun 5no dataApr 26no data
1963May 24Oct 13May 23Oct 30
1962May 10Oct 1Apr 21Oct 24
1961May 30Sep 29May 30Sep 29
1960May 2Oct 8May 2Oct 21
1959no dataSep 17no dataOct 19
1957Jun 8no dataJun 8no data
1956May 24no dataMay 24no data
1955May 20Sep 12Apr 7Oct 22
1954May 26Oct 7May 8Oct 7
1953May 15Oct 7Apr 29Oct 8
1952May 17Oct 3Apr 25Oct 5
1951May 13Sep 29Apr 21Sep 29

"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.