Last Frost Day

Frost history / Booneville 12SW, KY

Booneville 12SW, KY: frost dates by year

Last spring and first fall frost at NOAA station USC00150860, 2003 to 2020, measured from daily minimum temperatures.

Elevation 880 ft, 37.358, -83.771. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 1Oct 17
EarliestApr 14 (2016)Oct 2 (2003)
LatestMay 19 (2009)Oct 24 (2005)
Trend3.0 days earlier per decade2.9 days later per decade
Years with data1617

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 30201020202004: May 52005: May 52007: Apr 182008: May 12009: May 192010: May 112011: Apr 152012: Apr 252013: May 142014: Apr 242015: Apr 282016: Apr 142017: May 92018: May 12019: Apr 162020: May 11

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11201020202003: Oct 22004: Oct 182005: Oct 242006: Oct 132007: Oct 132008: Oct 182009: Oct 182010: Oct 62011: Oct 222012: Oct 112013: Oct 212014: Oct 52015: Oct 172016: Oct 232017: Oct 172018: Oct 192020: Oct 17

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
2020May 11Oct 17May 9Nov 2
2019Apr 16no dataApr 2no data
2018May 1Oct 19Apr 30Nov 10
2017May 9Oct 17Apr 9Oct 27
2016Apr 14Oct 23Apr 14Nov 12
2015Apr 28Oct 17Apr 25Oct 18
2014Apr 24Oct 5Apr 18Nov 2
2013May 14Oct 21Apr 4Oct 25
2012Apr 25Oct 11Apr 24Nov 3
2011Apr 15Oct 22Apr 7Oct 30
2010May 11Oct 6Mar 28Oct 22
2009May 19Oct 18Apr 9Oct 19
2008May 1Oct 18Apr 17Oct 18
2007Apr 18Oct 13Apr 14Oct 29
2006no dataOct 13no dataOct 13
2005May 5Oct 24Mar 22Oct 27
2004May 5Oct 18Apr 7Nov 9
2003no dataOct 2no dataOct 3

"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.