Last Frost Day

Frost history / Hamilton Butler Co Rgnl Ap, OH

Hamilton Butler Co Rgnl Ap, OH: frost dates by year

Last spring and first fall frost at NOAA station USW00053855, 1997 to 2024, measured from daily minimum temperatures.

Elevation 634 ft, 39.364, -84.525. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 17
EarliestMar 30 (1999)Oct 2 (2003)
LatestMay 22 (2002)Nov 1 (2014)
Trend3.4 days later per decade2.2 days later per decade
Years with data2728

At 28°F (hard freeze) the median last spring date is Apr 5 and the median first fall date is Oct 29.

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 302000201020201998: Apr 111999: Mar 302000: Apr 132001: Apr 262002: May 222003: Apr 232004: Apr 282005: May 42006: Apr 92007: Apr 172008: Apr 152009: Apr 232010: Apr 282011: Apr 132012: Apr 242013: Apr 262014: Apr 172015: Apr 242016: May 162017: May 82018: Apr 302019: Apr 22020: May 92021: May 12022: Apr 202023: Apr 252024: Apr 22

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 112000201020201997: Oct 191998: Oct 221999: Oct 182000: Oct 82001: Oct 72002: Oct 142003: Oct 22004: Oct 32005: Oct 262006: Oct 142007: Oct 282008: Oct 192009: Oct 172010: Oct 162011: Oct 222012: Oct 82013: Oct 202014: Nov 12015: Oct 172016: Oct 252017: Oct 252018: Oct 182019: Oct 132020: Oct 52021: Oct 272022: Oct 82023: Oct 312024: Oct 16

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 22Oct 16Mar 28Nov 29
2023Apr 25Oct 31Mar 21Oct 31
2022Apr 20Oct 8Apr 2Oct 20
2021May 1Oct 27Apr 3Nov 2
2020May 9Oct 5May 9Oct 17
2019Apr 2Oct 13Apr 1Nov 2
2018Apr 30Oct 18Apr 11Nov 10
2017May 8Oct 25Apr 8Nov 10
2016May 16Oct 25Apr 10Nov 12
2015Apr 24Oct 17Apr 1Oct 18
2014Apr 17Nov 1Apr 16Nov 1
2013Apr 26Oct 20Apr 5Oct 25
2012Apr 24Oct 8Mar 11Oct 11
2011Apr 13Oct 22Apr 1Oct 30
2010Apr 28Oct 16Mar 27Oct 22
2009Apr 23Oct 17Apr 12Oct 18
2008Apr 15Oct 19Apr 15Oct 22
2007Apr 17Oct 28Apr 10Nov 2
2006Apr 9Oct 14Mar 27Oct 15
2005May 4Oct 26Mar 22Oct 28
2004Apr 28Oct 3Apr 6Nov 8
2003Apr 23Oct 2Apr 23Oct 24
2002May 22Oct 14Apr 7Nov 1
2001Apr 26Oct 7Apr 2Oct 18
2000Apr 13Oct 8Apr 9Nov 5
1999Mar 30Oct 18Mar 28Oct 21
1998Apr 11Oct 22Apr 5Nov 5
1997no dataOct 19no dataOct 22

"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.