Last Frost Day

Frost history / Palestine, IL

Palestine, IL: frost dates by year

Last spring and first fall frost at NOAA station USC00116558, 1951 to 2019, measured from daily minimum temperatures.

Elevation 450 ft, 39.006, -87.624. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 12Oct 17
EarliestMar 22 (1967)Sep 22 (1999)
LatestMay 16 (1997)Nov 22 (1994)
Trendlittle change (less than half a day per decade)little change (less than half a day per decade)
Years with data5357

At 28°F (hard freeze) the median last spring date is Mar 31 and the median first fall date is Oct 29.

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 301960197019801990200020101951: Apr 231952: Apr 161953: Apr 201954: Apr 91955: Apr 81956: Apr 241957: Apr 151958: Apr 121959: Apr 131960: Apr 101961: Apr 191962: Apr 201963: May 11964: Apr 91965: Apr 21966: May 101967: Mar 221968: Mar 251969: Mar 311970: Apr 71971: Apr 101972: Apr 91974: Apr 91975: Apr 131976: Apr 281977: Apr 61978: May 21979: Apr 101980: Apr 251981: Apr 61982: Apr 111983: Apr 201984: Apr 71992: Apr 31996: Apr 171997: May 161998: Apr 111999: Apr 142000: Apr 122001: Apr 182002: Apr 62003: Apr 62004: Apr 142005: Apr 242006: Apr 92009: Apr 92010: Apr 92011: Apr 212012: Apr 122013: Apr 202014: Apr 162015: Apr 242019: Apr 15

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111960197019801990200020101951: Oct 201952: Oct 31953: Oct 81955: Oct 241956: Oct 271957: Oct 111958: Oct 11959: Oct 181960: Oct 201961: Oct 151962: Oct 241963: Oct 301964: Oct 101965: Oct 251966: Oct 251967: Oct 121968: Oct 51969: Oct 231970: Oct 171971: Nov 41972: Oct 191973: Nov 51974: Oct 21975: Nov 131976: Oct 101977: Oct 131978: Oct 81979: Oct 101980: Oct 51981: Oct 31982: Oct 211983: Nov 41984: Nov 21990: Oct 191993: Oct 301994: Nov 221995: Sep 231996: Oct 111997: Oct 151998: Oct 221999: Sep 222000: Oct 72001: Oct 62002: Oct 142003: Oct 22004: Oct 32005: Oct 282006: Oct 132007: Oct 292008: Oct 282009: Oct 112010: Oct 222011: Oct 222012: Oct 82013: Oct 222014: Oct 302019: 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
2019Apr 15Oct 12Apr 2Nov 1
2015Apr 24no dataMar 29no data
2014Apr 16Oct 30Mar 30Nov 2
2013Apr 20Oct 22Apr 3Oct 27
2012Apr 12Oct 8Apr 11Nov 4
2011Apr 21Oct 22Mar 31Nov 11
2010Apr 9Oct 22Mar 7Oct 29
2009Apr 9Oct 11Mar 30Nov 27
2008no dataOct 28no dataOct 28
2007no dataOct 29no dataNov 2
2006Apr 9Oct 13Mar 27Oct 15
2005Apr 24Oct 28Mar 17Oct 29
2004Apr 14Oct 3Mar 23Oct 16
2003Apr 6Oct 2Mar 31Nov 7
2002Apr 6Oct 14Apr 5Oct 14
2001Apr 18Oct 6Apr 18Oct 7
2000Apr 12Oct 7Apr 8Oct 9
1999Apr 14Sep 22Mar 28Oct 18
1998Apr 11Oct 22Mar 24Oct 23
1997May 16Oct 15Apr 18Oct 22
1996Apr 17Oct 11Apr 10Oct 19
1995no dataSep 23no dataNov 4
1994no dataNov 22no dataNov 23
1993no dataOct 30no dataNov 7
1992Apr 3no dataMar 27no data
1990no dataOct 19no dataOct 25
1984Apr 7Nov 2Mar 12Nov 6
1983Apr 20Nov 4Apr 20Nov 5
1982Apr 11Oct 21Apr 11Oct 21
1981Apr 6Oct 3Mar 24Oct 24
1980Apr 25Oct 5Mar 22Oct 29
1979Apr 10Oct 10Apr 6Oct 14
1978May 2Oct 8Mar 18Nov 8
1977Apr 6Oct 13Mar 7Nov 12
1976Apr 28Oct 10Mar 22Oct 18
1975Apr 13Nov 13Apr 7Nov 14
1974Apr 9Oct 2Apr 9Oct 21
1973no dataNov 5no dataNov 6
1972Apr 9Oct 19Apr 9Oct 20
1971Apr 10Nov 4Apr 7Nov 7
1970Apr 7Oct 17Apr 5Nov 16
1969Mar 31Oct 23Mar 31Oct 23
1968Mar 25Oct 5Mar 23Oct 26
1967Mar 22Oct 12Mar 22Nov 4
1966May 10Oct 25Apr 10Nov 3
1965Apr 2Oct 25Mar 31Oct 29
1964Apr 9Oct 10Apr 1Oct 10
1963May 1Oct 30Mar 22Nov 2
1962Apr 20Oct 24Apr 16Oct 24
1961Apr 19Oct 15Apr 16Nov 4
1960Apr 10Oct 20Apr 10Oct 20
1959Apr 13Oct 18Mar 23Oct 28
1958Apr 12Oct 1Mar 23Nov 7
1957Apr 15Oct 11Apr 13Nov 6
1956Apr 24Oct 27Apr 23Nov 9
1955Apr 8Oct 24Apr 8Nov 3
1954Apr 9no dataApr 1no data
1953Apr 20Oct 8Apr 19Nov 6
1952Apr 16Oct 3Mar 29Oct 7
1951Apr 23Oct 20Mar 31Nov 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.