Last Frost Day

Frost history / Lebanon, TN

Lebanon, TN: frost dates by year

Last spring and first fall frost at NOAA station USC00405108, 1961 to 2025, measured from daily minimum temperatures.

Elevation 525 ft, 36.229, -86.318. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 13Oct 20
EarliestMar 19 (2005)Oct 2 (1984)
LatestMay 17 (1997)Nov 27 (2024)
Trend1.6 days earlier per decade3.4 days later per decade
Years with data5559

At 28°F (hard freeze) the median last spring date is Mar 30 and the median first fall date is Oct 30.

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 1Mar 16Mar 31Apr 15Apr 30May 15May 301970198019902000201020201962: Apr 161963: May 21964: Apr 101965: Mar 271966: Apr 151967: Mar 231968: Mar 261969: Apr 301970: Apr 151971: May 41972: Apr 261973: Apr 131974: Apr 251975: Apr 211976: May 41977: Apr 91978: May 21979: Apr 71980: Apr 161981: Mar 251982: Apr 231983: Apr 261984: Apr 81985: Apr 111986: May 41987: Apr 101988: Apr 201989: Apr 141990: Apr 131991: Mar 311992: Apr 291993: Apr 231994: Apr 91995: Apr 71996: Apr 271997: May 171998: Apr 131999: Apr 142000: Apr 102001: Apr 192002: Apr 82003: Apr 12004: Apr 52005: Mar 192007: Apr 112008: Apr 212009: Mar 312012: Apr 122013: Mar 292014: Apr 162017: Mar 202018: Apr 212019: Apr 22020: Apr 162025: Apr 10

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111970198019902000201020201961: Oct 151962: Oct 241963: Oct 301964: Oct 61965: Oct 131966: Oct 171967: Oct 111968: Oct 51969: Oct 181970: Oct 171971: Nov 41972: Oct 201973: Oct 171974: Oct 31975: Oct 31976: Oct 181977: Oct 121978: Oct 81979: Oct 141980: Oct 61981: Oct 31982: Oct 221983: Nov 51984: Oct 21985: Nov 81986: Nov 131987: Oct 41988: Oct 81989: Oct 221990: Oct 191991: Oct 71992: Oct 191993: Oct 231994: Oct 261995: Oct 221996: Oct 111997: Oct 21998: Oct 231999: Oct 242000: Oct 92001: Oct 182002: Nov 22003: Nov 142005: Oct 242006: Oct 132007: Nov 22008: Oct 292009: Oct 182010: Oct 302011: Oct 292012: Oct 312013: Oct 252014: Nov 22017: Oct 302018: Oct 212019: Nov 12020: Nov 22024: Nov 272025: 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 10Nov 10Mar 24Nov 11
2024no dataNov 27no dataNov 30
2020Apr 16Nov 2Mar 7Nov 18
2019Apr 2Nov 1Mar 20Nov 2
2018Apr 21Oct 21Mar 23Nov 11
2017Mar 20Oct 30Mar 16Oct 30
2014Apr 16Nov 2Mar 27Nov 2
2013Mar 29Oct 25Mar 28Oct 25
2012Apr 12Oct 31Mar 5Nov 1
2011no dataOct 29no dataNov 11
2010no dataOct 30no dataNov 6
2009Mar 31Oct 18Mar 5Dec 1
2008Apr 21Oct 29Mar 26Nov 10
2007Apr 11Nov 2Apr 10Nov 7
2006no dataOct 13no dataOct 24
2005Mar 19Oct 24Mar 16Oct 29
2004Apr 5no dataMar 24no data
2003Apr 1Nov 14Mar 31Nov 14
2002Apr 8Nov 2Mar 24Nov 18
2001Apr 19Oct 18Mar 29Oct 28
2000Apr 10Oct 9Mar 12Oct 9
1999Apr 14Oct 24Mar 29Oct 25
1998Apr 13Oct 23Mar 24Oct 23
1997May 17Oct 2Apr 18Oct 22
1996Apr 27Oct 11Apr 11Oct 19
1995Apr 7Oct 22Apr 1Nov 4
1994Apr 9Oct 26Apr 1Oct 27
1993Apr 23Oct 23Apr 3Oct 23
1992Apr 29Oct 19Apr 5Oct 20
1991Mar 31Oct 7Mar 31Oct 17
1990Apr 13Oct 19Apr 9Oct 27
1989Apr 14Oct 22Apr 12Nov 3
1988Apr 20Oct 8Apr 16Oct 13
1987Apr 10Oct 4Apr 6Oct 8
1986May 4Nov 13Apr 23Nov 13
1985Apr 11Nov 8Apr 10Nov 8
1984Apr 8Oct 2Mar 31Nov 7
1983Apr 26Nov 5Apr 21Nov 5
1982Apr 23Oct 22Apr 10Oct 23
1981Mar 25Oct 3Mar 24Oct 24
1980Apr 16Oct 6Mar 22Oct 6
1979Apr 7Oct 14Mar 26Oct 14
1978May 2Oct 8Mar 28Nov 25
1977Apr 9Oct 12Mar 25Nov 12
1976May 4Oct 18Apr 13Oct 18
1975Apr 21Oct 3Apr 4Nov 14
1974Apr 25Oct 3Mar 25Oct 3
1973Apr 13Oct 17Apr 13Nov 6
1972Apr 26Oct 20Apr 9Nov 16
1971May 4Nov 4Mar 30Nov 7
1970Apr 15Oct 17Apr 3Nov 16
1969Apr 30Oct 18Mar 31Oct 18
1968Mar 26Oct 5Mar 25Oct 5
1967Mar 23Oct 11Mar 22Nov 5
1966Apr 15Oct 17Apr 10Nov 2
1965Mar 27Oct 13Mar 22Oct 25
1964Apr 10Oct 6Apr 9Oct 11
1963May 2Oct 30Mar 23Oct 30
1962Apr 16Oct 24Apr 16Oct 24
1961no dataOct 15no dataOct 15

"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.