Last Frost Day

Frost history / Lindsay 2 W, OK

Lindsay 2 W, OK: frost dates by year

Last spring and first fall frost at NOAA station USC00345216, 1960 to 2005, measured from daily minimum temperatures.

Elevation 980 ft, 34.826, -97.639. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 6Oct 27
EarliestMar 17 (1967)Oct 9 (2000)
LatestMay 1 (1960)Nov 23 (2003)
Trend0.5 days later per decade2.3 days later per decade
Years with data3834

At 28°F (hard freeze) the median last spring date is Mar 26 and the median first fall date is Nov 14.

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 15196019701980199020001960: May 11961: Apr 161962: Apr 21963: Mar 221964: Apr 91965: Mar 271966: Apr 211967: Mar 171968: Apr 51969: Apr 61970: Mar 261971: Apr 71972: Apr 41973: Apr 111974: Apr 151975: Apr 41976: Apr 11977: Apr 51978: Mar 271979: Mar 261980: Apr 151987: Apr 51988: Apr 191989: Apr 111991: Mar 181993: Apr 21994: Apr 71995: Apr 111996: Apr 61997: Apr 141998: Mar 211999: Apr 172000: Apr 42001: Apr 12002: Apr 42003: Apr 102004: Apr 142005: Apr 22

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 11196019701980199020001960: Oct 201961: Oct 261962: Nov 41964: Oct 201966: Oct 161968: Oct 181970: Nov 21971: Nov 41973: Oct 291974: Nov 141975: Oct 261976: Oct 171978: Oct 141979: Oct 101981: Nov 101986: Nov 111987: Oct 121988: Nov 161989: Oct 191990: Oct 221991: Oct 311992: Nov 41993: Oct 211994: Nov 161995: Oct 241997: Nov 51998: Nov 101999: Oct 192000: Oct 92001: Nov 192002: Nov 42003: Nov 232004: Nov 32005: Oct 23

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
2005Apr 22Oct 23Apr 1Nov 15
2004Apr 14Nov 3Feb 27Nov 24
2003Apr 10Nov 23Apr 9Nov 23
2002Apr 4Nov 4Mar 26Nov 26
2001Apr 1Nov 19Mar 1Nov 19
2000Apr 4Oct 9Mar 12Oct 9
1999Apr 17Oct 19Mar 15Nov 23
1998Mar 21Nov 10Mar 12Dec 8
1997Apr 14Nov 5Apr 13Nov 6
1996Apr 6no dataMar 26no data
1995Apr 11Oct 24Mar 9Nov 4
1994Apr 7Nov 16Apr 7Nov 28
1993Apr 2Oct 21Mar 14Oct 21
1992no dataNov 4no dataNov 5
1991Mar 18Oct 31Mar 10Nov 1
1990no dataOct 22no dataNov 28
1989Apr 11Oct 19Apr 11Oct 19
1988Apr 19Nov 16Mar 19Nov 17
1987Apr 5Oct 12Apr 3Nov 11
1986no dataNov 11no dataNov 11
1981no dataNov 10no dataNov 10
1980Apr 15no dataApr 15no data
1979Mar 26Oct 10Mar 25Nov 1
1978Mar 27Oct 14Mar 12Nov 28
1977Apr 5no dataMar 22no data
1976Apr 1Oct 17Apr 1Oct 20
1975Apr 4Oct 26Apr 3Nov 13
1974Apr 15Nov 14Apr 5Nov 15
1973Apr 11Oct 29Apr 10Nov 28
1972Apr 4no dataMar 31no data
1971Apr 7Nov 4Apr 7Nov 7
1970Mar 26Nov 2Mar 26Nov 15
1969Apr 6no dataMar 26no data
1968Apr 5Oct 18Apr 5Nov 9
1967Mar 17no dataMar 9no data
1966Apr 21Oct 16Mar 25Nov 28
1965Mar 27no dataMar 27no data
1964Apr 9Oct 20Mar 30Nov 20
1963Mar 22no dataMar 7no data
1962Apr 2Nov 4Apr 2Nov 4
1961Apr 16Oct 26Apr 16Nov 23
1960May 1Oct 20Mar 18Nov 6

"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.