Last Frost Day

Frost history / Millerstown 4E, KY

Millerstown 4E, KY: frost dates by year

Last spring and first fall frost at NOAA station USC00155444, 2009 to 2025, measured from daily minimum temperatures.

Elevation 600 ft, 37.434, -86.009. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 23Oct 18
EarliestApr 2 (2019)Oct 5 (2014)
LatestMay 11 (2020)Nov 7 (2016)
Trend4.3 days later per decade1.3 days later per decade
Years with data1215

At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Oct 22.

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 30201020202010: Apr 202015: Apr 252016: Apr 112017: Apr 92018: May 12019: Apr 22020: May 112021: Apr 232022: Apr 282023: Apr 262024: Apr 232025: Apr 17

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26201020202009: Oct 182011: Oct 212012: Oct 92014: Oct 52015: Oct 172016: Nov 72017: Oct 272018: Oct 192019: Oct 132020: Oct 62021: Oct 272022: Oct 82023: Oct 232024: Oct 162025: Oct 23

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 17Oct 23Mar 27Oct 24
2024Apr 23Oct 16Apr 7Oct 16
2023Apr 26Oct 23Apr 25Oct 31
2022Apr 28Oct 8Apr 11Oct 9
2021Apr 23Oct 27Apr 4Nov 3
2020May 11Oct 6May 9Oct 17
2019Apr 2Oct 13Mar 28Nov 1
2018May 1Oct 19Apr 21Oct 21
2017Apr 9Oct 27Mar 24Oct 30
2016Apr 11Nov 7Apr 11Nov 10
2015Apr 25Oct 17Apr 6Oct 18
2014no dataOct 5no dataNov 2
2012no dataOct 9no dataOct 12
2011no dataOct 21no dataOct 22
2010Apr 20no dataMar 31no data
2009no dataOct 18no dataOct 18

"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.