Last Frost Day

Frost history / New Bedford Coop, MA

New Bedford Coop, MA: frost dates by year

Last spring and first fall frost at NOAA station USC00195246, 1951 to 2001, measured from daily minimum temperatures.

Elevation 18 ft, 41.595, -70.905. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 9Nov 7
EarliestMar 11 (1953)Oct 1 (1992)
LatestMay 9 (1977)Dec 16 (1953)
Trend3.8 days later per decade4.0 days earlier per decade
Years with data4149

At 28°F (hard freeze) the median last spring date is Mar 26 and the median first fall date is Nov 19.

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 15196019701980199020001951: Mar 271952: Mar 171953: Mar 111954: Apr 51955: Mar 291957: Apr 151958: Apr 91959: Apr 141960: Mar 271961: Mar 311962: Apr 41963: Apr 51964: Apr 51965: Apr 31966: Apr 11967: Apr 131968: Mar 251969: Apr 31970: Apr 61971: Apr 171972: Apr 91973: Apr 141975: Mar 281977: May 91978: Apr 101979: Apr 81980: Apr 171981: Apr 221984: Apr 221986: Mar 231988: Apr 141989: Apr 231992: Apr 161993: Apr 271994: Mar 311996: Apr 151997: Apr 151998: Apr 101999: Apr 112000: Apr 132001: Apr 19

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 11Dec 26196019701980199020001951: Nov 61952: Oct 211953: Dec 161954: Nov 101955: Nov 191956: Nov 101957: Nov 111958: Nov 231959: Nov 181960: Nov 71961: Nov 101962: Nov 71963: Nov 251964: Nov 221965: Oct 291966: Oct 311967: Oct 301968: Nov 211969: Oct 231970: Nov 241971: Nov 81972: Oct 201973: Nov 101974: Nov 221975: Dec 41976: Oct 191977: Nov 141978: Nov 131979: Oct 111980: Oct 241981: Nov 121983: Dec 21984: Oct 61985: Nov 261986: Nov 131987: Nov 61988: Oct 91989: Nov 41991: Nov 121992: Oct 11993: Oct 111994: Nov 111995: Nov 51996: Nov 31997: Oct 231998: Nov 41999: Oct 192000: Oct 292001: Oct 31

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
2001Apr 19Oct 31Mar 28Nov 12
2000Apr 13Oct 29Mar 19Nov 22
1999Apr 11Oct 19Mar 26Nov 12
1998Apr 10Nov 4Mar 25Nov 9
1997Apr 15Oct 23Apr 10Nov 13
1996Apr 15Nov 3Mar 30Nov 13
1995no dataNov 5no dataNov 9
1994Mar 31Nov 11Mar 20Nov 23
1993Apr 27Oct 11Mar 23Nov 8
1992Apr 16Oct 1Mar 25Nov 2
1991no dataNov 12no dataNov 17
1989Apr 23Nov 4Apr 23Nov 19
1988Apr 14Oct 9Mar 23Oct 31
1987no dataNov 6no dataNov 7
1986Mar 23Nov 13Mar 22Nov 13
1985no dataNov 26no dataDec 3
1984Apr 22Oct 6Mar 27Nov 19
1983no dataDec 2no dataDec 19
1981Apr 22Nov 12Mar 24Nov 13
1980Apr 17Oct 24Mar 16Nov 3
1979Apr 8Oct 11Mar 18Nov 16
1978Apr 10Nov 13Apr 3Nov 25
1977May 9Nov 14Apr 9Nov 27
1976no dataOct 19no dataOct 27
1975Mar 28Dec 4Mar 28Dec 5
1974no dataNov 22no dataNov 23
1973Apr 14Nov 10Feb 28Dec 2
1972Apr 9Oct 20Apr 8Nov 15
1971Apr 17Nov 8Mar 26Nov 9
1970Apr 6Nov 24Mar 30Nov 25
1969Apr 3Oct 23Apr 1Oct 24
1968Mar 25Nov 21Mar 15Dec 8
1967Apr 13Oct 30Mar 24Nov 17
1966Apr 1Oct 31Mar 29Nov 20
1965Apr 3Oct 29Apr 1Dec 1
1964Apr 5Nov 22Apr 5Nov 22
1963Apr 5Nov 25Mar 15Dec 1
1962Apr 4Nov 7Mar 9Dec 12
1961Mar 31Nov 10Mar 21Dec 9
1960Mar 27Nov 7Mar 26Nov 8
1959Apr 14Nov 18Mar 29Nov 18
1958Apr 9Nov 23Mar 9Nov 30
1957Apr 15Nov 11Mar 31Nov 11
1956no dataNov 10no dataNov 10
1955Mar 29Nov 19Mar 29Nov 26
1954Apr 5Nov 10Apr 4Dec 2
1953Mar 11Dec 16Mar 11Dec 16
1952Mar 17Oct 21Mar 17Dec 1
1951Mar 27Nov 6Mar 27Nov 20

"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.