Last Frost Day

Frost history / Chatom, AL

Chatom, AL: frost dates by year

Last spring and first fall frost at NOAA station USC00011566, 1951 to 2018, measured from daily minimum temperatures.

Elevation 285 ft, 31.471, -88.250. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMar 27Nov 8
EarliestFeb 28 (1967)Oct 3 (1984)
LatestApr 27 (1976)Dec 5 (1978)
Trend1.5 days earlier per decade1.4 days later per decade
Years with data5761

At 28°F (hard freeze) the median last spring date is Mar 8 and the median first fall date is Nov 17.

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)

Feb 14Mar 1Mar 16Mar 31Apr 15Apr 30May 151960197019801990200020101951: Apr 41952: Apr 71953: Apr 211954: Mar 181955: Mar 311956: Mar 311957: Mar 271958: Mar 211959: Apr 141960: Apr 111961: Mar 101962: Apr 171963: Mar 251964: Mar 301965: Mar 221966: Mar 251967: Feb 281968: Mar 251969: Mar 271970: Mar 161971: Apr 71972: Apr 91973: Apr 111974: Mar 221975: Apr 41976: Apr 271977: Feb 281978: Mar 271979: Mar 261981: Mar 201982: Mar 81983: Apr 191984: Mar 301985: Apr 101986: Mar 231991: Mar 151993: Apr 41994: Apr 11995: Mar 111996: Mar 231998: Mar 221999: Mar 302000: Apr 92001: Mar 112002: Mar 242003: Mar 312004: Mar 232007: Mar 82008: Mar 262009: Apr 82010: Mar 82011: Mar 112012: Mar 42013: Mar 282014: Mar 272015: Mar 292017: Apr 8

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111960197019801990200020101951: Nov 31952: Oct 221953: Oct 301954: Oct 301955: Oct 251956: Nov 91957: Oct 271958: Nov 201959: Nov 71960: Nov 71961: Oct 271962: Oct 251963: Nov 21964: Nov 221965: Nov 181966: Nov 31967: Nov 51968: Nov 81969: Nov 151970: Nov 61971: Nov 221972: Nov 181973: Nov 111974: Nov 91975: Nov 141976: Oct 291977: Oct 131978: Dec 51979: Nov 141980: Nov 191981: Nov 211982: Nov 51983: Nov 121984: Oct 31985: Dec 31986: Nov 141991: Nov 41992: Oct 201993: Oct 311995: Nov 81997: Nov 161999: Oct 252000: Nov 152001: Oct 182002: Nov 142003: Nov 252004: Dec 32005: Nov 172006: Nov 42007: Nov 82008: Oct 292009: Nov 192010: Nov 82011: Oct 302012: Nov 222013: Nov 132014: Nov 22015: Nov 232016: Nov 202017: Nov 202018: Nov 15

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
2018no dataNov 15no dataNov 28
2017Apr 8Nov 20Mar 16Dec 9
2016no dataNov 20no dataNov 20
2015Mar 29Nov 23Mar 7Nov 23
2014Mar 27Nov 2Mar 27Nov 14
2013Mar 28Nov 13Mar 28Nov 14
2012Mar 4Nov 22Feb 14Nov 25
2011Mar 11Oct 30Feb 14Oct 30
2010Mar 8Nov 8Mar 8Dec 7
2009Apr 8Nov 19Mar 6Dec 6
2008Mar 26Oct 29Mar 26Nov 17
2007Mar 8Nov 8Mar 8Dec 17
2006no dataNov 4no dataDec 4
2005no dataNov 17no dataNov 18
2004Mar 23Dec 3Feb 28Dec 15
2003Mar 31Nov 25Feb 11Nov 25
2002Mar 24Nov 14Mar 6Nov 29
2001Mar 11Oct 18Feb 19Nov 22
2000Apr 9Nov 15Feb 5Nov 15
1999Mar 30Oct 25Mar 4Dec 1
1998Mar 22no dataMar 13no data
1997no dataNov 16no dataNov 17
1996Mar 23no dataMar 12no data
1995Mar 11Nov 8Feb 12Nov 14
1994Apr 1no dataFeb 28no data
1993Apr 4Oct 31Mar 16Nov 1
1992no dataOct 20no dataNov 7
1991Mar 15Nov 4Feb 16Nov 4
1986Mar 23Nov 14Mar 22Nov 14
1985Apr 10Dec 3Mar 8Dec 3
1984Mar 30Oct 3Mar 10Nov 11
1983Apr 19Nov 12Mar 22Nov 12
1982Mar 8Nov 5Mar 8Nov 5
1981Mar 20Nov 21Feb 13Nov 21
1980no dataNov 19no dataDec 15
1979Mar 26Nov 14Mar 25Nov 29
1978Mar 27Dec 5Mar 5Dec 10
1977Feb 28Oct 13Feb 17Dec 7
1976Apr 27Oct 29Feb 8Nov 6
1975Apr 4Nov 14Mar 5Nov 15
1974Mar 22Nov 9Feb 27Nov 26
1973Apr 11Nov 11Feb 19Dec 8
1972Apr 9Nov 18Feb 8Dec 1
1971Apr 7Nov 22Apr 6Nov 22
1970Mar 16Nov 6Mar 14Nov 17
1969Mar 27Nov 15Mar 11Nov 15
1968Mar 25Nov 8Mar 25Nov 13
1967Feb 28Nov 5Feb 26Nov 6
1966Mar 25Nov 3Mar 25Nov 3
1965Mar 22Nov 18Mar 21Dec 1
1964Mar 30Nov 22Feb 25Nov 22
1963Mar 25Nov 2Mar 23Nov 14
1962Apr 17Oct 25Apr 16Dec 6
1961Mar 10Oct 27Feb 10Oct 27
1960Apr 11Nov 7Apr 11Nov 8
1959Apr 14Nov 7Mar 8Nov 7
1958Mar 21Nov 20Feb 22Nov 29
1957Mar 27Oct 27Mar 10Oct 28
1956Mar 31Nov 9Mar 21Nov 10
1955Mar 31Oct 25Mar 29Oct 26
1954Mar 18Oct 30Mar 16Nov 1
1953Apr 21Oct 30Feb 18Nov 10
1952Apr 7Oct 22Mar 16Oct 22
1951Apr 4Nov 3Feb 9Nov 8

"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.