Last Frost Day

Frost history / Le Claire L&D 14, IA

Le Claire L&D 14, IA: frost dates by year

Last spring and first fall frost at NOAA station USC00134705, 1951 to 2025, measured from daily minimum temperatures.

Elevation 577 ft, 41.575, -90.401. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 14Oct 23
EarliestMar 23 (2017)Sep 29 (1984)
LatestMay 9 (1966)Nov 21 (2024)
Trendlittle change (less than half a day per decade)little change (less than half a day per decade)
Years with data7575

At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Nov 4.

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 1519601970198019902000201020201951: Apr 191952: Apr 161953: Apr 201954: May 41955: Apr 71956: Apr 301957: Apr 151958: Apr 291959: Apr 131960: Apr 101961: Apr 181962: Apr 161963: Apr 101964: Apr 91965: Apr 31966: May 91967: Apr 241968: Apr 61969: Apr 61970: Apr 41971: Apr 71972: Apr 91973: Apr 131974: Apr 81975: Apr 131976: Apr 121977: Apr 61978: May 21979: Apr 71980: Apr 181981: May 21982: Apr 211983: Apr 211984: Apr 11985: Apr 101986: Apr 221987: Apr 41988: Apr 191989: May 71990: Apr 171991: Mar 301992: Apr 271993: Apr 171994: Apr 71995: Apr 51996: Apr 101997: Apr 171998: Mar 241999: Mar 272000: Apr 132001: Apr 192002: Apr 72003: Apr 112004: Apr 142005: May 32006: Apr 92007: Apr 142008: Apr 152009: Apr 82010: Mar 272011: Apr 62012: Apr 122013: Apr 212014: Apr 162015: Apr 242016: Apr 132017: Mar 232018: Apr 212019: Apr 282020: Apr 182021: Apr 222022: Apr 262023: Apr 232024: Apr 222025: Apr 9

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 311952: Oct 61953: Oct 281954: Oct 301955: Oct 241956: Nov 81957: Oct 271958: Nov 61959: Oct 121960: Oct 201961: Nov 31962: Oct 241963: Nov 21964: Oct 91965: Oct 241966: Oct 251967: Oct 261968: Oct 251969: Oct 141970: Oct 161971: Oct 121972: Oct 181973: Nov 41974: Oct 11975: Nov 131976: Oct 81977: Oct 161978: Nov 71979: Oct 131980: Oct 121981: Oct 81982: Oct 211983: Oct 141984: Sep 291985: Nov 51986: Nov 21987: Oct 31988: Oct 121989: Oct 41990: Oct 191991: Oct 151992: Oct 171993: Oct 101994: Nov 11995: Nov 21996: Oct 301997: Oct 261998: Nov 51999: Oct 242000: Oct 72001: Oct 72002: Oct 172003: Oct 22004: Oct 172005: Oct 242006: Oct 122007: Nov 62008: Oct 282009: Oct 102010: Oct 292011: Oct 222012: Oct 62013: Oct 232014: Nov 12015: Oct 172016: Nov 122017: Oct 292018: Oct 212019: Oct 292020: Oct 202021: Nov 12022: Oct 162023: Oct 302024: Nov 212025: Nov 10

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