Last Frost Day

Frost history / Laveen 3 Sse, AZ

Laveen 3 Sse, AZ: frost dates by year

Last spring and first fall frost at NOAA station USC00024829, 1951 to 2017, measured from daily minimum temperatures.

Elevation 1,135 ft, 33.337, -112.147. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianFeb 7Dec 2
EarliestJan 4 (1993)Oct 30 (1971)
LatestMar 29 (1975)Dec 29 (1962)
Trend6.3 days earlier per decade2.1 days later per decade
Years with data65, 12 with no freeze64, 8 with no freeze

At 28°F (hard freeze) the median last spring date is Jan 31 and the median first fall date is Dec 11.

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)

Dec 16Dec 31Jan 15Jan 30Feb 14Mar 1Mar 16Mar 31Apr 151960197019801990200020101951: Mar 41952: Feb 201953: Feb 251954: Mar 181955: Mar 221956: Mar 131958: Jan 251959: Feb 101960: Feb 261961: Jan 141962: Mar 151963: Jan 271964: Mar 41965: Mar 111966: Mar 41967: Feb 181968: Jan 61969: Mar 81970: Feb 31971: Mar 31972: Mar 291973: Feb 181974: Feb 211975: Mar 291976: Jan 121977: Jan 121978: Jan 251979: Feb 61981: Feb 51982: Feb 31983: Jan 221984: Feb 241985: Mar 51986: Feb 111987: Jan 221988: Jan 241989: Feb 71990: Feb 201991: Jan 301992: Jan 151993: Jan 41994: Feb 241995: Jan 191996: Jan 251997: Feb 71998: Jan 72002: Feb 12004: Feb 132008: Jan 312011: Feb 52013: Jan 162015: Jan 42016: Feb 3

First fall frost (32°F)

Oct 12Oct 27Nov 11Nov 26Dec 11Dec 26Jan 101960197019801990200020101951: Dec 81952: Nov 251953: Nov 201954: Dec 241955: Dec 31956: Nov 41957: Nov 231958: Nov 171959: Nov 281960: Nov 281961: Nov 181962: Dec 291963: Dec 111964: Nov 161965: Dec 201966: Dec 271967: Dec 101968: Dec 31969: Dec 81970: Dec 41971: Oct 301972: Nov 211973: Nov 161974: Dec 101975: Nov 201976: Nov 281978: Dec 71979: Nov 211981: Dec 251982: Dec 251983: Nov 221984: Nov 271985: Nov 201987: Dec 141988: Dec 241989: Dec 121990: Nov 281991: Nov 291992: Nov 251993: Nov 261994: Nov 201995: Dec 201996: Dec 21997: Dec 111998: Dec 72001: Dec 182003: Dec 272004: Nov 302006: Nov 302008: Dec 272009: Dec 262010: Nov 302011: Dec 62013: Dec 72014: Dec 262015: Nov 29

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
2017noneno datanoneno data
2016Feb 3nonenonenone
2015Jan 4Nov 29Jan 3none
2014noneDec 26nonenone
2013Jan 16Dec 7Jan 15none
2012nonenonenonenone
2011Feb 5Dec 6Feb 4none
2010noneNov 30nonenone
2009noneDec 26nonenone
2008Jan 31Dec 27nonenone
2006no dataNov 30no datanone
2005noneno datanoneno data
2004Feb 13Nov 30nonenone
2003noneDec 27noneDec 28
2002Feb 1noneJan 31none
2001noneDec 18nonenone
2000nonenonenonenone
1999nonenonenonenone
1998Jan 7Dec 7nonenone
1997Feb 7Dec 11Jan 8none
1996Jan 25Dec 2Jan 25Dec 18
1995Jan 19Dec 20nonenone
1994Feb 24Nov 20Feb 1Nov 20
1993Jan 4Nov 26noneDec 22
1992Jan 15Nov 25nonenone
1991Jan 30Nov 29Jan 30none
1990Feb 20Nov 28Feb 16Dec 23
1989Feb 7Dec 12Feb 7Dec 13
1988Jan 24Dec 24noneDec 27
1987Jan 22Dec 14Jan 22Dec 14
1986Feb 11nonenonenone
1985Mar 5Nov 20Feb 6none
1984Feb 24Nov 27Jan 20none
1983Jan 22Nov 22Jan 22Nov 27
1982Feb 3Dec 25Feb 3none
1981Feb 5Dec 25nonenone
1980nonenonenonenone
1979Feb 6Nov 21Jan 30none
1978Jan 25Dec 7noneDec 7
1977Jan 12nonenonenone
1976Jan 12Nov 28Jan 3Nov 28
1975Mar 29Nov 20Feb 23none
1974Feb 21Dec 10Jan 4Dec 15
1973Feb 18Nov 16Jan 28Nov 27
1972Mar 29Nov 21Feb 14Dec 6
1971Mar 3Oct 30Mar 2Oct 30
1970Feb 3Dec 4Jan 6none
1969Mar 8Dec 8Feb 1Dec 31
1968Jan 6Dec 3noneDec 20
1967Feb 18Dec 10Jan 7Dec 22
1966Mar 4Dec 27Mar 4Dec 28
1965Mar 11Dec 20Feb 12none
1964Mar 4Nov 16Feb 16none
1963Jan 27Dec 11Jan 22none
1962Mar 15Dec 29Feb 28none
1961Jan 14Nov 18noneNov 22
1960Feb 26Nov 28Feb 25Dec 6
1959Feb 10Nov 28Feb 4none
1958Jan 25Nov 17Jan 24Nov 17
1957noneNov 23nonenone
1956Mar 13Nov 4Feb 5Nov 20
1955Mar 22Dec 3Feb 23none
1954Mar 18Dec 24Jan 2Dec 28
1953Feb 25Nov 20Feb 21Dec 8
1952Feb 20Nov 25Jan 5none
1951Mar 4Dec 8Jan 14Dec 9

"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.