Last Frost Day

Frost history / Lake Villa 2NE, IL

Lake Villa 2NE, IL: frost dates by year

Last spring and first fall frost at NOAA station USC00114837, 1987 to 2005, measured from daily minimum temperatures.

Elevation 840 ft, 42.431, -88.059. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 25Oct 11
EarliestApr 12 (2000)Sep 23 (1995)
LatestMay 21 (2002)Oct 28 (2005)
Trend1.9 days later per decade3.3 days later per decade
Years with data1719

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 31.

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 30199020001988: Apr 241989: May 71990: Apr 181991: Apr 221992: Apr 281993: Apr 271994: May 61995: Apr 141996: Apr 271997: Apr 221998: Apr 271999: Apr 252000: Apr 122001: Apr 182002: May 212003: Apr 242004: May 3

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11199020001987: Oct 31988: Oct 121989: Oct 31990: Oct 181991: Oct 71992: Oct 161993: Oct 91994: Oct 271995: Sep 231996: Oct 111997: Oct 151998: Oct 221999: Oct 232000: Oct 72001: Oct 62002: Oct 202003: Oct 22004: Oct 52005: Oct 28

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
2005no dataOct 28no dataNov 16
2004May 3Oct 5Apr 13Nov 8
2003Apr 24Oct 2Apr 10Nov 7
2002May 21Oct 20Apr 6Oct 31
2001Apr 18Oct 6Apr 18Oct 7
2000Apr 12Oct 7Apr 12Nov 11
1999Apr 25Oct 23Mar 27Oct 24
1998Apr 27Oct 22Mar 24Nov 6
1997Apr 22Oct 15Apr 18Oct 27
1996Apr 27Oct 11Apr 10Oct 30
1995Apr 14Sep 23Apr 5Nov 2
1994May 6Oct 27Apr 7Nov 19
1993Apr 27Oct 9Apr 17Oct 31
1992Apr 28Oct 16Apr 5Oct 17
1991Apr 22Oct 7Apr 2Oct 19
1990Apr 18Oct 18Apr 12Nov 7
1989May 7Oct 3May 7Nov 2
1988Apr 24Oct 12Apr 21Oct 13
1987no dataOct 3no dataOct 11

"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.