Last Frost Day

Frost history / Moline Quad City Intl Ap, IL

Moline Quad City Intl Ap, IL: frost dates by year

Last spring and first fall frost at NOAA station USW00014923, 1951 to 2024, measured from daily minimum temperatures.

Elevation 592 ft, 41.465, -90.523. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 12
EarliestApr 7 (1955)Sep 20 (1956)
LatestMay 21 (2002)Nov 11 (2016)
Trendlittle change (less than half a day per decade)1.3 days later per decade
Years with data7474

At 28°F (hard freeze) the median last spring date is Apr 12 and the median first fall date is Oct 27.

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 31Apr 15Apr 30May 15May 3019601970198019902000201020201951: Apr 231952: Apr 161953: Apr 211954: May 201955: Apr 71956: Apr 301957: Apr 151958: Apr 291959: Apr 221960: Apr 181961: Apr 291962: Apr 201963: May 11964: Apr 151965: Apr 131966: May 101967: May 71968: Apr 251969: Apr 291970: Apr 101971: May 131972: Apr 261973: Apr 131974: Apr 241975: Apr 211976: May 81977: Apr 291978: May 31979: Apr 101980: May 91981: May 71982: Apr 211983: May 91984: Apr 241985: Apr 91986: Apr 231987: Apr 111988: Apr 291989: May 71990: Apr 181991: Apr 221992: May 61993: Apr 221994: Apr 221995: Apr 251996: Apr 271997: May 161998: Apr 171999: Apr 192000: Apr 122001: Apr 182002: May 212003: Apr 112004: May 32005: May 42006: Apr 262007: Apr 152008: Apr 292009: Apr 162010: Apr 92011: May 42012: Apr 232013: May 132014: Apr 232015: May 12016: Apr 132017: May 32018: Apr 292019: Apr 152020: May 122021: May 82022: Apr 272023: Apr 262024: Apr 21

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 311952: Oct 31953: Oct 71954: Oct 181955: Oct 191956: Sep 201957: Oct 111958: Oct 291959: Oct 121960: Oct 191961: Oct 21962: Sep 291963: Nov 21964: Oct 61965: Oct 241966: Oct 61967: Sep 291968: Oct 41969: Oct 171970: Oct 41971: Oct 121972: Oct 151973: Nov 31974: Sep 231975: Oct 191976: Oct 81977: Oct 121978: Oct 81979: Oct 51980: Oct 51981: Oct 31982: Oct 211983: Oct 131984: Sep 291985: Oct 61986: Oct 151987: Oct 31988: Oct 51989: Sep 241990: Oct 101991: Sep 201992: Oct 161993: Oct 91994: Oct 101995: Sep 221996: Oct 111997: Oct 151998: Oct 221999: Oct 142000: Oct 72001: Oct 62002: Oct 162003: Oct 12004: Oct 52005: Oct 262006: Oct 122007: Oct 282008: Oct 282009: Oct 102010: Oct 292011: Oct 212012: Sep 242013: Oct 142014: Oct 192015: Oct 172016: Nov 112017: Oct 282018: Oct 182019: Oct 252020: Oct 242021: Oct 232022: Oct 142023: Oct 302024: Oct 15

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