Last Frost Day

Frost history / Laurel 3 W, MD

Laurel 3 W, MD: frost dates by year

Last spring and first fall frost at NOAA station USC00185111, 1952 to 2015, measured from daily minimum temperatures.

Elevation 400 ft, 39.085, -76.900. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 8Nov 4
EarliestMar 18 (1978)Oct 4 (1974)
LatestMay 10 (1966)Dec 1 (2009)
Trend1.0 days earlier per decade1.3 days later per decade
Years with data5251

At 28°F (hard freeze) the median last spring date is Mar 27 and the median first fall date is Nov 21.

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 151960197019801990200020101952: Mar 251953: Apr 211955: Mar 301956: Apr 211958: Apr 91959: Apr 131960: Apr 111961: Apr 131962: Apr 171963: Mar 231964: Apr 51965: Apr 41966: May 101967: Apr 121968: Apr 61969: Apr 11970: Apr 111971: Mar 311972: Apr 91973: Apr 131974: Apr 111975: Apr 71976: Apr 131977: Apr 91978: Mar 181979: Apr 71980: Apr 171981: Mar 251983: Apr 201984: Mar 241986: Mar 231989: Apr 121991: Apr 31992: Apr 131993: Apr 281994: Mar 191995: Apr 51996: Apr 101997: Apr 181998: Mar 251999: Apr 132000: Apr 242001: Apr 182002: Apr 72003: Apr 12008: Mar 302009: Mar 252010: Mar 272012: Mar 272013: Apr 42014: Apr 172015: Mar 29

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111960197019801990200020101952: Oct 211953: Nov 61954: Oct 311955: Nov 61956: Nov 111957: Oct 281958: Nov 231959: Nov 31960: Oct 221961: Nov 101962: Oct 261963: Nov 131964: Oct 111965: Oct 51966: Nov 41967: Nov 61968: Nov 101969: Oct 231970: Nov 171971: Nov 81972: Oct 111973: Nov 61974: Oct 41975: Oct 311976: Oct 191978: Nov 261979: Oct 101980: Nov 31981: Nov 131982: Nov 61983: Oct 301984: Nov 81985: Nov 221989: Nov 41991: Oct 171993: Oct 111994: Nov 231996: Nov 31997: Nov 131998: Nov 51999: Nov 42000: Nov 162001: Oct 182002: Nov 12007: Nov 82008: Nov 112009: Dec 12011: Oct 292012: Nov 72013: Nov 42014: Nov 8

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
2015Mar 29no dataMar 29no data
2014Apr 17Nov 8Mar 27Nov 15
2013Apr 4Nov 4Apr 4Nov 13
2012Mar 27Nov 7Mar 6Dec 23
2011no dataOct 29no dataDec 11
2010Mar 27no dataMar 27no data
2009Mar 25Dec 1Mar 24Dec 6
2008Mar 30Nov 11Mar 9Nov 19
2007no dataNov 8no dataNov 24
2003Apr 1no dataMar 31no data
2002Apr 7Nov 1Apr 6Nov 28
2001Apr 18Oct 18Mar 28Dec 20
2000Apr 24Nov 16Mar 18Nov 20
1999Apr 13Nov 4Mar 12Nov 30
1998Mar 25Nov 5Mar 14Dec 22
1997Apr 18Nov 13Apr 18Nov 17
1996Apr 10Nov 3Mar 22Nov 13
1995Apr 5no dataApr 5no data
1994Mar 19Nov 23Mar 17Nov 24
1993Apr 28Oct 11Mar 18Nov 2
1992Apr 13no dataApr 5no data
1991Apr 3Oct 17Mar 30Nov 4
1989Apr 12Nov 4Mar 23Nov 19
1986Mar 23no dataMar 23no data
1985no dataNov 22no dataDec 2
1984Mar 24Nov 8Mar 16Nov 21
1983Apr 20Oct 30Mar 30Nov 12
1982no dataNov 6no dataNov 16
1981Mar 25Nov 13Mar 20Nov 23
1980Apr 17Nov 3Mar 4Nov 17
1979Apr 7Oct 10Apr 7Nov 29
1978Mar 18Nov 26Mar 18Nov 27
1977Apr 9no dataApr 9no data
1976Apr 13Oct 19Apr 13Oct 19
1975Apr 7Oct 31Apr 6Dec 2
1974Apr 11Oct 4Mar 26Nov 26
1973Apr 13Nov 6Mar 18Nov 11
1972Apr 9Oct 11Apr 9Oct 20
1971Mar 31Nov 8Mar 27Nov 8
1970Apr 11Nov 17Mar 30Nov 23
1969Apr 1Oct 23Mar 31Oct 24
1968Apr 6Nov 10Mar 14Nov 21
1967Apr 12Nov 6Mar 20Nov 6
1966May 10Nov 4Mar 29Nov 20
1965Apr 4Oct 5Apr 3Nov 15
1964Apr 5Oct 11Apr 4Nov 22
1963Mar 23Nov 13Mar 23Dec 1
1962Apr 17Oct 26Mar 9Dec 9
1961Apr 13Nov 10Mar 18Dec 7
1960Apr 11Oct 22Mar 26Dec 1
1959Apr 13Nov 3Mar 29Nov 18
1958Apr 9Nov 23Mar 9Nov 28
1957no dataOct 28no dataNov 11
1956Apr 21Nov 11Mar 27Nov 23
1955Mar 30Nov 6Mar 29Nov 27
1954no dataOct 31no dataNov 11
1953Apr 21Nov 6Mar 11Nov 6
1952Mar 25Oct 21Mar 15Oct 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.