Last Frost Day

Frost history / Harrison Boone Co Ap, AR

Harrison Boone Co Ap, AR: frost dates by year

Last spring and first fall frost at NOAA station USW00013971, 1962 to 2024, measured from daily minimum temperatures.

Elevation 1,374 ft, 36.267, -93.157. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 5Oct 27
EarliestMar 9 (1995)Oct 7 (1991)
LatestMay 3 (2013)Dec 8 (1998)
Trend0.9 days later per decade0.5 days later per decade
Years with data6363

At 28°F (hard freeze) the median last spring date is Mar 24 and the median first fall date is Nov 12.

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 151970198019902000201020201962: Apr 161963: Mar 221964: Apr 91965: Mar 271966: Mar 281967: Mar 191968: Apr 61969: Mar 301970: Apr 21971: Apr 61972: Apr 91973: Apr 111974: Apr 91975: Apr 41976: Mar 231977: Mar 221978: Mar 271979: Apr 31980: Apr 141981: Mar 231982: Apr 101983: Apr 201984: Mar 301985: Apr 11986: Apr 221987: Apr 51988: Apr 111989: Apr 111990: Apr 121991: Mar 301992: Apr 31993: Apr 51994: Apr 71995: Mar 91996: Apr 71997: Apr 141998: Mar 211999: Mar 262000: Apr 92001: Apr 182002: Apr 52003: Apr 92004: Mar 312005: Mar 202006: Mar 262007: Apr 82008: Apr 152009: Apr 72010: Mar 232011: Mar 312012: Mar 92013: May 32014: Apr 152015: Apr 42016: Mar 252017: Mar 152018: Apr 162019: Apr 22020: Apr 182021: Apr 222022: Apr 142023: Apr 242024: Mar 28

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 11Dec 261970198019902000201020201962: Nov 41963: Nov 131964: Oct 91965: Oct 251966: Oct 161967: Nov 31968: Oct 251969: Oct 281970: Oct 101971: Nov 61972: Oct 191973: Nov 61974: Nov 61975: Oct 261976: Oct 171977: Oct 131978: Nov 81979: Nov 41980: Oct 251981: Oct 231982: Oct 221983: Nov 51984: Nov 21985: Nov 201986: Nov 111987: Oct 81988: Oct 311989: Oct 191990: Oct 111991: Oct 71992: Nov 41993: Oct 291994: Oct 261995: Nov 31996: Nov 21997: Oct 271998: Dec 81999: Oct 242000: Oct 72001: Oct 172002: Oct 142003: Nov 232004: Nov 132005: Oct 262006: Oct 202007: Nov 62008: Oct 272009: Oct 182010: Oct 302011: Nov 172012: Oct 272013: Oct 252014: Oct 312015: Nov 92016: Nov 132017: Oct 272018: Nov 92019: Oct 122020: Oct 302021: Nov 42022: Oct 182023: Oct 302024: 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
2024Mar 28Oct 16Mar 19Nov 26
2023Apr 24Oct 30Mar 20Oct 31
2022Apr 14Oct 18Apr 1Oct 19
2021Apr 22Nov 4Mar 6Nov 13
2020Apr 18Oct 30Feb 27Nov 30
2019Apr 2Oct 12Mar 7Oct 31
2018Apr 16Nov 9Apr 8Nov 9
2017Mar 15Oct 27Mar 15Oct 29
2016Mar 25Nov 13Mar 21Nov 20
2015Apr 4Nov 9Mar 6Nov 21
2014Apr 15Oct 31Mar 26Nov 1
2013May 3Oct 25Mar 27Nov 12
2012Mar 9Oct 27Feb 13Oct 28
2011Mar 31Nov 17Mar 11Nov 17
2010Mar 23Oct 30Mar 4Nov 25
2009Apr 7Oct 18Apr 7Dec 1
2008Apr 15Oct 27Mar 24Oct 28
2007Apr 8Nov 6Apr 8Nov 7
2006Mar 26Oct 20Mar 25Nov 2
2005Mar 20Oct 26Mar 17Nov 16
2004Mar 31Nov 13Mar 10Nov 13
2003Apr 9Nov 23Mar 30Nov 23
2002Apr 5Oct 14Apr 4Nov 25
2001Apr 18Oct 17Mar 27Oct 27
2000Apr 9Oct 7Mar 12Oct 8
1999Mar 26Oct 24Mar 15Nov 30
1998Mar 21Dec 8Mar 13Dec 9
1997Apr 14Oct 27Mar 16Nov 15
1996Apr 7Nov 2Apr 6Nov 3
1995Mar 9Nov 3Mar 9Nov 3
1994Apr 7Oct 26Apr 7Dec 10
1993Apr 5Oct 29Mar 18Oct 30
1992Apr 3Nov 4Apr 2Nov 26
1991Mar 30Oct 7Mar 30Nov 1
1990Apr 12Oct 11Mar 25Nov 6
1989Apr 11Oct 19Apr 11Oct 20
1988Apr 11Oct 31Mar 16Nov 17
1987Apr 5Oct 8Apr 4Nov 11
1986Apr 22Nov 11Mar 21Nov 12
1985Apr 1Nov 20Mar 6Nov 20
1984Mar 30Nov 2Mar 9Nov 11
1983Apr 20Nov 5Apr 19Nov 12
1982Apr 10Oct 22Apr 6Nov 4
1981Mar 23Oct 23Mar 6Oct 23
1980Apr 14Oct 25Mar 18Oct 30
1979Apr 3Nov 4Mar 26Nov 7
1978Mar 27Nov 8Mar 26Dec 3
1977Mar 22Oct 13Mar 22Nov 25
1976Mar 23Oct 17Mar 17Oct 28
1975Apr 4Oct 26Apr 4Nov 13
1974Apr 9Nov 6Mar 25Nov 14
1973Apr 11Nov 6Feb 22Dec 6
1972Apr 9Oct 19Apr 4Nov 22
1971Apr 6Nov 6Mar 25Nov 7
1970Apr 2Oct 10Mar 27Nov 15
1969Mar 30Oct 28Mar 30Nov 13
1968Apr 6Oct 25Mar 24Nov 12
1967Mar 19Nov 3Mar 18Nov 4
1966Mar 28Oct 16Mar 28Nov 2
1965Mar 27Oct 25Mar 27Nov 29
1964Apr 9Oct 9Mar 30Nov 19
1963Mar 22Nov 13Mar 1Nov 13
1962Apr 16Nov 4Apr 3Nov 5

"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.