Last Frost Day

Frost history / Hammond 5 E, LA

Hammond 5 E, LA: frost dates by year

Last spring and first fall frost at NOAA station USC00164030, 1981 to 2014, measured from daily minimum temperatures.

Elevation 35 ft, 30.503, -90.377. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMar 9Nov 20
EarliestFeb 7 (2000)Oct 20 (1989)
LatestApr 15 (2008)Dec 16 (1998)
Trend0.7 days later per decade1.7 days earlier per decade
Years with data3031

At 28°F (hard freeze) the median last spring date is Feb 15 and the median first fall date is Nov 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)

Jan 30Feb 14Mar 1Mar 16Mar 31Apr 15Apr 301990200020101982: Mar 91983: Mar 221984: Mar 81985: Feb 161986: Mar 231987: Apr 51988: Mar 201989: Mar 91990: Mar 211991: Feb 171992: Feb 111993: Mar 161994: Feb 271995: Mar 101996: Mar 221997: Feb 161998: Mar 241999: Mar 42000: Feb 72002: Mar 62003: Mar 312004: Feb 202005: Feb 122006: Mar 252007: Mar 62008: Apr 152010: Mar 62011: Feb 142013: Mar 282014: Mar 26

First fall frost (32°F)

Oct 12Oct 27Nov 11Nov 26Dec 11Dec 261990200020101981: Nov 211982: Nov 51983: Nov 171984: Nov 131985: Dec 31986: Dec 61987: Nov 121988: Nov 291989: Oct 201990: Nov 301991: Nov 41992: Nov 291993: Nov 11994: Dec 121995: Nov 121996: Dec 21997: Nov 171998: Dec 161999: Nov 272000: Nov 152001: Nov 212002: Nov 292003: Nov 252004: Dec 152006: Nov 202008: Oct 282009: Nov 272010: Nov 62011: Oct 202013: Nov 132014: Nov 14

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
2014Mar 26Nov 14Feb 27Nov 14
2013Mar 28Nov 13Mar 27Nov 28
2011Feb 14Oct 20Feb 14Nov 11
2010Mar 6Nov 6Feb 25Dec 7
2009no dataNov 27no dataNov 27
2008Apr 15Oct 28Feb 14Nov 19
2007Mar 6no dataMar 5no data
2006Mar 25Nov 20Feb 14Dec 5
2005Feb 12no dataJan 25no data
2004Feb 20Dec 15Feb 8Dec 15
2003Mar 31Nov 25Jan 25Nov 25
2002Mar 6Nov 29Mar 5none
2001no dataNov 21no dataDec 26
2000Feb 7Nov 15Feb 7Nov 22
1999Mar 4Nov 27Jan 11Dec 1
1998Mar 24Dec 16Mar 24none
1997Feb 16Nov 17Feb 13Nov 17
1996Mar 22Dec 2Mar 11Dec 19
1995Mar 10Nov 12Feb 9Dec 10
1994Feb 27Dec 12Feb 14Dec 12
1993Mar 16Nov 1Mar 14Nov 1
1992Feb 11Nov 29Jan 22Nov 29
1991Feb 17Nov 4Feb 16Nov 4
1990Mar 21Nov 30Jan 13Dec 9
1989Mar 9Oct 20Feb 25Dec 4
1988Mar 20Nov 29Mar 15Dec 13
1987Apr 5Nov 12Feb 10Dec 17
1986Mar 23Dec 6Mar 22none
1985Feb 16Dec 3Feb 16Dec 15
1984Mar 8Nov 13Mar 1Nov 23
1983Mar 22Nov 17Jan 25Nov 29
1982Mar 9Nov 5Mar 8Dec 13
1981no dataNov 21no dataNov 21

"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.