Last Frost Day

Frost history / Cincinnati Northern Ky Ap, KY

Cincinnati Northern Ky Ap, KY: frost dates by year

Last spring and first fall frost at NOAA station USW00093814, 1951 to 2024, measured from daily minimum temperatures.

Elevation 869 ft, 39.043, -84.672. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 20Oct 21
EarliestMar 25 (1968)Sep 30 (1993)
LatestMay 19 (2002)Nov 21 (2024)
Trend0.6 days later per decade1.2 days later per decade
Years with data7474

At 28°F (hard freeze) the median last spring date is Apr 4 and the median first fall date is Nov 2.

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 3019601970198019902000201020201951: Apr 231952: Apr 111953: Apr 201954: May 41955: Apr 81956: Apr 231957: Apr 151958: Apr 301959: Mar 281960: Apr 111961: May 21962: Apr 161963: May 11964: Apr 101965: Apr 141966: May 101967: Apr 251968: Mar 251969: Apr 201970: Apr 111971: May 41972: Apr 91973: Apr 141974: May 71975: Apr 161976: May 91977: Apr 91978: Apr 221979: Apr 101980: Apr 251981: Apr 211982: Apr 231983: Apr 251984: Apr 201985: Apr 101986: May 31987: Apr 41988: Apr 251989: Apr 121990: Apr 181991: Apr 21992: Apr 51993: Apr 221994: May 21995: Apr 51996: May 131997: May 161998: Apr 201999: Mar 302000: Apr 92001: Apr 252002: May 192003: Apr 232004: May 42005: May 32006: Apr 92007: Apr 142008: Apr 152009: Apr 92010: Apr 282011: Apr 12012: Apr 122013: Apr 252014: Apr 162015: Apr 242016: May 162017: May 82018: Apr 292019: Apr 12020: May 92021: Apr 232022: Apr 102023: Apr 242024: Apr 22

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 91952: Oct 71953: Oct 301954: Oct 201955: Oct 241956: Nov 81957: Oct 201958: Oct 301959: Oct 181960: Oct 211961: Oct 271962: Oct 231963: Oct 301964: Oct 71965: Oct 251966: Oct 21967: Oct 211968: Oct 51969: Oct 171970: Oct 171971: Nov 41972: Oct 191973: Oct 171974: Oct 31975: Oct 31976: Oct 181977: Oct 141978: Oct 91979: Oct 131980: Oct 61981: Oct 231982: Oct 261983: Oct 261984: Nov 31985: Nov 81986: Oct 201987: Oct 41988: Oct 81989: Oct 221990: Oct 191991: Oct 161992: Oct 171993: Sep 301994: Oct 251995: Oct 161996: Oct 191997: Oct 221998: Oct 221999: Oct 212000: Oct 72001: Oct 72002: Nov 12003: Oct 22004: Nov 82005: Oct 282006: Oct 132007: Oct 292008: Oct 282009: Oct 182010: Oct 222011: Oct 222012: Oct 82013: Oct 222014: Nov 12015: Oct 182016: Nov 102017: Oct 252018: Oct 212019: Nov 12020: Nov 12021: Nov 22022: Oct 202023: Oct 312024: Nov 21

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
2024Apr 22Nov 21Mar 28Nov 29
2023Apr 24Oct 31Mar 29Oct 31
2022Apr 10Oct 20Mar 28Nov 17
2021Apr 23Nov 2Apr 2Nov 3
2020May 9Nov 1Apr 16Nov 2
2019Apr 1Nov 1Apr 1Nov 8
2018Apr 29Oct 21Apr 11Nov 10
2017May 8Oct 25Mar 16Nov 10
2016May 16Nov 10Apr 3Nov 13
2015Apr 24Oct 18Mar 29Nov 14
2014Apr 16Nov 1Apr 16Nov 2
2013Apr 25Oct 22Apr 5Nov 11
2012Apr 12Oct 8Mar 10Nov 5
2011Apr 1Oct 22Apr 1Oct 29
2010Apr 28Oct 22Mar 27Nov 6
2009Apr 9Oct 18Mar 20Oct 18
2008Apr 15Oct 28Mar 25Oct 30
2007Apr 14Oct 29Apr 9Nov 7
2006Apr 9Oct 13Mar 27Oct 15
2005May 3Oct 28Mar 21Oct 29
2004May 4Nov 8Apr 6Nov 25
2003Apr 23Oct 2Mar 31Nov 8
2002May 19Nov 1Apr 6Nov 2
2001Apr 25Oct 7Apr 18Oct 28
2000Apr 9Oct 7Apr 9Nov 17
1999Mar 30Oct 21Mar 28Oct 25
1998Apr 20Oct 22Mar 24Oct 23
1997May 16Oct 22Apr 18Oct 22
1996May 13Oct 19Apr 10Nov 2
1995Apr 5Oct 16Apr 5Nov 3
1994May 2Oct 25Apr 7Nov 22
1993Apr 22Sep 30Mar 19Oct 30
1992Apr 5Oct 17Apr 3Oct 19
1991Apr 2Oct 16Mar 31Nov 2
1990Apr 18Oct 19Apr 8Nov 7
1989Apr 12Oct 22Apr 11Nov 3
1988Apr 25Oct 8Apr 20Oct 12
1987Apr 4Oct 4Apr 4Oct 21
1986May 3Oct 20Apr 23Nov 12
1985Apr 10Nov 8Apr 10Nov 21
1984Apr 20Nov 3Apr 2Nov 7
1983Apr 25Oct 26Apr 20Nov 5
1982Apr 23Oct 26Apr 7Nov 5
1981Apr 21Oct 23Mar 24Oct 23
1980Apr 25Oct 6Apr 17Oct 13
1979Apr 10Oct 13Apr 7Oct 14
1978Apr 22Oct 9Mar 22Nov 8
1977Apr 9Oct 14Apr 9Oct 17
1976May 9Oct 18Apr 12Oct 18
1975Apr 16Oct 3Apr 12Nov 14
1974May 7Oct 3Mar 25Oct 3
1973Apr 14Oct 17Apr 14Nov 6
1972Apr 9Oct 19Apr 9Oct 20
1971May 4Nov 4Mar 30Nov 7
1970Apr 11Oct 17Apr 5Nov 16
1969Apr 20Oct 17Mar 31Oct 18
1968Mar 25Oct 5Mar 24Oct 30
1967Apr 25Oct 21Apr 4Nov 5
1966May 10Oct 2May 10Oct 30
1965Apr 14Oct 25Apr 3Oct 29
1964Apr 10Oct 7Apr 4Oct 11
1963May 1Oct 30May 1Oct 30
1962Apr 16Oct 23Apr 16Oct 24
1961May 2Oct 27Apr 2Nov 7
1960Apr 11Oct 21Apr 10Oct 25
1959Mar 28Oct 18Mar 28Nov 7
1958Apr 30Oct 30Mar 23Nov 7
1957Apr 15Oct 20Apr 14Nov 6
1956Apr 23Nov 8Apr 19Nov 9
1955Apr 8Oct 24Apr 8Oct 25
1954May 4Oct 20Apr 3Oct 31
1953Apr 20Oct 30Apr 19Oct 30
1952Apr 11Oct 7Mar 17Oct 7
1951Apr 23Oct 9Mar 26Nov 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.