Last Frost Day

Frost history / Lima Wwtp, OH

Lima Wwtp, OH: frost dates by year

Last spring and first fall frost at NOAA station USC00334551, 1951 to 2025, measured from daily minimum temperatures.

Elevation 850 ft, 40.725, -84.129. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 27Oct 17
EarliestApr 4 (2011)Sep 18 (1959)
LatestMay 27 (1961)Nov 12 (2016)
Trend1.6 days earlier per decade3.2 days later per decade
Years with data7171

At 28°F (hard freeze) the median last spring date is Apr 12 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 16Mar 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201951: Apr 231952: Apr 161953: Apr 211954: May 211955: May 91956: Apr 241957: May 51958: Apr 301959: May 161960: Apr 191961: May 271962: Apr 241963: May 231964: Apr 91965: Apr 291966: May 101967: May 161968: May 61969: May 111970: May 31971: May 41972: May 101973: May 181974: May 71975: Apr 211976: May 81977: Apr 291978: May 11979: May 51980: May 81981: May 71982: Apr 221983: Apr 251984: Apr 201985: Apr 101986: Apr 241987: Apr 91989: May 81990: Apr 181991: Apr 111992: Apr 51993: Apr 221994: May 21995: Apr 101996: May 131997: Apr 181998: Apr 271999: Apr 252000: Apr 122001: Apr 202003: Apr 232004: May 32005: May 52006: Apr 272007: Apr 172008: May 12009: Apr 182010: Apr 192011: Apr 42012: Apr 282013: Apr 272014: Apr 172015: Apr 282016: Apr 152017: May 102020: May 122021: May 102022: Apr 282023: Apr 262024: Apr 252025: Apr 17

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Sep 291952: Oct 31953: Oct 71954: Oct 181955: Oct 251956: Sep 211957: Oct 111958: Oct 121959: Sep 181960: Oct 201961: Oct 151962: Sep 211963: Oct 301964: Oct 51965: Oct 41966: Oct 11967: Sep 231968: Oct 51969: Oct 181970: Oct 161971: Nov 41972: Oct 151973: Nov 41974: Sep 231975: Oct 31976: Oct 161977: Oct 131978: Oct 171979: Oct 141980: Oct 51981: Oct 31982: Oct 171983: Oct 71984: Nov 21986: Nov 31988: Oct 61989: Oct 41990: Oct 251991: Oct 161992: Oct 181993: Oct 101994: Nov 71995: Sep 231996: Oct 111997: Oct 151998: Oct 221999: Oct 272000: Oct 292003: Oct 12004: Nov 72005: Oct 272006: Oct 122007: Nov 22008: Oct 222009: Oct 112010: Nov 12011: Oct 282012: Oct 82013: Oct 232014: Nov 12015: Oct 182016: Nov 122017: Oct 262018: Oct 182019: Nov 12020: Oct 312021: Oct 272022: Oct 202023: Oct 302024: Nov 22025: Nov 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
2025Apr 17Nov 9Apr 12Nov 10
2024Apr 25Nov 2Mar 28Nov 28
2023Apr 26Oct 30Mar 30Oct 31
2022Apr 28Oct 20Apr 18Nov 15
2021May 10Oct 27Apr 23Nov 4
2020May 12Oct 31May 10Nov 2
2019no dataNov 1no dataNov 1
2018no dataOct 18no dataNov 5
2017May 10Oct 26Mar 24Nov 10
2016Apr 15Nov 12Apr 11Nov 12
2015Apr 28Oct 18Apr 5Nov 22
2014Apr 17Nov 1Apr 17Nov 2
2013Apr 27Oct 23Apr 22Nov 12
2012Apr 28Oct 8Mar 11Nov 4
2011Apr 4Oct 28Apr 3Nov 18
2010Apr 19Nov 1Mar 31Nov 3
2009Apr 18Oct 11Mar 21Oct 18
2008May 1Oct 22Apr 15Oct 30
2007Apr 17Nov 2Apr 11Nov 23
2006Apr 27Oct 12Mar 28Oct 26
2005May 5Oct 27Mar 17Nov 17
2004May 3Nov 7Apr 5Nov 8
2003Apr 23Oct 1Apr 6Nov 7
2001Apr 20no dataApr 20no data
2000Apr 12Oct 29Apr 12Nov 17
1999Apr 25Oct 27Mar 28Nov 17
1998Apr 27Oct 22Mar 24Nov 4
1997Apr 18Oct 15Apr 18Oct 22
1996May 13Oct 11Apr 10Nov 2
1995Apr 10Sep 23Apr 5Nov 4
1994May 2Nov 7Apr 7Nov 22
1993Apr 22Oct 10Apr 4Nov 7
1992Apr 5Oct 18Apr 5Oct 19
1991Apr 11Oct 16Apr 11Oct 20
1990Apr 18Oct 25Apr 18Oct 28
1989May 8Oct 4Apr 12Oct 9
1988no dataOct 6no dataOct 13
1987Apr 9no dataApr 4no data
1986Apr 24Nov 3Apr 24Nov 10
1985Apr 10no dataApr 10no data
1984Apr 20Nov 2Apr 1Nov 13
1983Apr 25Oct 7Apr 20Nov 4
1982Apr 22Oct 17Apr 12Oct 17
1981May 7Oct 3Mar 24Oct 24
1980May 8Oct 5Mar 27Oct 29
1979May 5Oct 14Apr 10Nov 4
1978May 1Oct 17Apr 22Nov 8
1977Apr 29Oct 13Apr 29Oct 17
1976May 8Oct 16Apr 28Oct 18
1975Apr 21Oct 3Apr 13Oct 30
1974May 7Sep 23May 7Oct 2
1973May 18Nov 4Apr 14Nov 6
1972May 10Oct 15Apr 25Oct 19
1971May 4Nov 4May 4Nov 7
1970May 3Oct 16Apr 11Oct 17
1969May 11Oct 18Apr 20Oct 23
1968May 6Oct 5Apr 25Oct 30
1967May 16Sep 23Apr 28Oct 20
1966May 10Oct 1May 10Oct 6
1965Apr 29Oct 4Apr 14Oct 5
1964Apr 9Oct 5Apr 5Oct 7
1963May 23Oct 30May 1Oct 30
1962Apr 24Sep 21Apr 17Oct 24
1961May 27Oct 15Apr 19Oct 27
1960Apr 19Oct 20Apr 10Oct 24
1959May 16Sep 18Apr 13Nov 3
1958Apr 30Oct 12Apr 9Oct 29
1957May 5Oct 11Apr 15Oct 28
1956Apr 24Sep 21Apr 23Nov 10
1955May 9Oct 25Apr 8Nov 4
1954May 21Oct 18Apr 4Nov 1
1953Apr 21Oct 7Apr 21Oct 30
1952Apr 16Oct 3Apr 16Oct 7
1951Apr 23Sep 29Apr 5Oct 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.