Last Frost Day

Frost history / Atoka, OK

Atoka, OK: frost dates by year

Last spring and first fall frost at NOAA station USC00340391, 1951 to 2018, measured from daily minimum temperatures.

Elevation 565 ft, 34.398, -96.140. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 7Nov 6
EarliestMar 7 (2015)Oct 8 (2012)
LatestMay 4 (2013)Nov 29 (1965)
Trend0.8 days earlier per decadelittle change (less than half a day per decade)
Years with data2829

At 28°F (hard freeze) the median last spring date is Mar 19 and the median first fall date is Nov 13.

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 151960197019801990200020101951: Apr 171953: Apr 191956: Apr 201957: Apr 141958: Mar 201960: Mar 211961: Apr 101962: Apr 21963: Mar 231964: Apr 91972: Mar 311974: Apr 92002: Mar 272004: Apr 142005: Mar 282006: Mar 252007: Apr 152008: Apr 152009: Apr 82010: Mar 302011: Apr 62012: Mar 102013: May 42014: Apr 162015: Mar 72016: Mar 282017: Mar 152018: Apr 16

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111960197019801990200020101953: Nov 91955: Oct 181956: Nov 91957: Oct 261958: Nov 21959: Nov 61960: Oct 201961: Nov 31965: Nov 291969: Nov 21971: Nov 71972: Nov 201973: Oct 291974: Nov 152002: Nov 62003: Nov 242004: Nov 252005: Oct 242006: Oct 232007: Nov 72008: Oct 282009: Nov 182010: Oct 292011: Oct 202012: Oct 82013: Nov 72014: Nov 12015: Nov 132016: Nov 19

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
2018Apr 16no dataApr 9no data
2017Mar 15no dataMar 3no data
2016Mar 28Nov 19Mar 21Nov 20
2015Mar 7Nov 13Mar 7Nov 22
2014Apr 16Nov 1Apr 15Nov 1
2013May 4Nov 7Mar 27Nov 13
2012Mar 10Oct 8Mar 5Oct 28
2011Apr 6Oct 20Apr 5Nov 4
2010Mar 30Oct 29Mar 22Nov 6
2009Apr 8Nov 18Apr 8Nov 26
2008Apr 15Oct 28Mar 24Oct 28
2007Apr 15Nov 7Mar 5Nov 23
2006Mar 25Oct 23Mar 25Nov 3
2005Mar 28Oct 24Mar 17Oct 25
2004Apr 14Nov 25Feb 28Nov 25
2003no dataNov 24no dataNov 24
2002Mar 27Nov 6Mar 23Nov 19
1974Apr 9Nov 15Mar 24Nov 15
1973no dataOct 29no dataDec 5
1972Mar 31Nov 20Mar 2Nov 23
1971no dataNov 7no dataNov 7
1969no dataNov 2no dataNov 14
1965no dataNov 29no dataNov 30
1964Apr 9no dataMar 26no data
1963Mar 23no dataMar 6no data
1962Apr 2no dataMar 17no data
1961Apr 10Nov 3Feb 25Nov 29
1960Mar 21Oct 20Mar 18Nov 10
1959no dataNov 6no dataNov 6
1958Mar 20Nov 2Mar 14Nov 19
1957Apr 14Oct 26Apr 13Oct 26
1956Apr 20Nov 9Mar 16Nov 9
1955no dataOct 18no dataNov 3
1953Apr 19Nov 9Feb 22Nov 9
1951Apr 17no dataMar 19no data

"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.