Last Frost Day

Frost history / Pioche, NV

Pioche, NV: frost dates by year

Last spring and first fall frost at NOAA station USC00266252, 1951 to 2015, measured from daily minimum temperatures.

Elevation 5,990 ft, 37.934, -114.452. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Oct 13
EarliestApr 16 (2012)Sep 17 (1965)
LatestJun 19 (1979)Nov 11 (1988)
Trend1.4 days earlier per decadelittle change (less than half a day per decade)
Years with data5252

At 28°F (hard freeze) the median last spring date is Apr 28 and the median first fall date is Oct 28.

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 31Apr 15Apr 30May 15May 30Jun 14Jun 291960197019801990200020101951: May 21952: May 171953: May 291954: Jun 101955: May 161956: May 141957: May 231958: Apr 261959: May 201960: May 191961: May 131962: May 271963: May 121964: May 91965: May 91966: Apr 281967: Jun 11968: May 151969: Apr 271970: May 21971: May 221972: May 211973: May 21974: May 201975: May 221976: Apr 281977: May 191978: May 241979: Jun 191980: May 261981: May 201982: May 111983: May 171984: May 71985: Apr 271986: May 71987: Apr 211989: May 141992: Apr 191993: Jun 71994: Apr 281995: Jun 71996: May 252003: May 82004: May 112005: May 102010: May 252011: May 192012: Apr 162013: Apr 242014: May 112015: May 9

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 261960197019801990200020101951: Oct 221952: Nov 51953: Oct 191954: Oct 241955: Oct 61956: Oct 131957: Oct 41958: Oct 211959: Sep 281960: Oct 101961: Oct 81962: Oct 161963: Nov 11964: Oct 241965: Sep 171966: Oct 131967: Oct 161968: Oct 91969: Oct 41970: Sep 251971: Sep 281972: Oct 201973: Oct 91974: Oct 221975: Oct 71976: Oct 191977: Oct 301978: Sep 181979: Oct 211980: Oct 151981: Oct 131982: Sep 301983: Oct 151984: Oct 151985: Sep 301986: Oct 121987: Nov 91988: Nov 111989: Oct 251993: Oct 91994: Oct 141996: Oct 162000: Oct 72002: Oct 12003: Oct 102004: Sep 192010: Oct 262011: Oct 62012: Oct 242013: Sep 272014: Nov 32015: Nov 4

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
2015May 9Nov 4Apr 16Nov 5
2014May 11Nov 3Apr 3Nov 3
2013Apr 24Sep 27Apr 23Nov 4
2012Apr 16Oct 24Apr 7Oct 25
2011May 19Oct 6Apr 30Oct 27
2010May 25Oct 26May 1Oct 27
2005May 10no dataApr 20no data
2004May 11Sep 19Apr 21Oct 26
2003May 8Oct 10May 8Oct 30
2002no dataOct 1no dataNov 1
2000no dataOct 7no dataOct 7
1996May 25Oct 16Apr 28Oct 16
1995Jun 7no dataApr 20no data
1994Apr 28Oct 14Apr 25Oct 21
1993Jun 7Oct 9Apr 13Oct 30
1992Apr 19no dataMar 19no data
1989May 14Oct 25Apr 27Oct 26
1988no dataNov 11no dataNov 15
1987Apr 21Nov 9Apr 20Nov 15
1986May 7Oct 12Apr 27Nov 7
1985Apr 27Sep 30Apr 27Oct 22
1984May 7Oct 15Apr 28Oct 15
1983May 17Oct 15May 12Nov 8
1982May 11Sep 30May 11Oct 9
1981May 20Oct 13Apr 5Oct 13
1980May 26Oct 15May 25Oct 16
1979Jun 19Oct 21May 9Oct 29
1978May 24Sep 18May 6Sep 18
1977May 19Oct 30May 18Nov 1
1976Apr 28Oct 19Apr 28Nov 26
1975May 22Oct 7May 22Oct 8
1974May 20Oct 22Apr 19Nov 6
1973May 2Oct 9Apr 20Nov 4
1972May 21Oct 20Apr 30Oct 29
1971May 22Sep 28Apr 25Oct 16
1970May 2Sep 25Apr 30Oct 8
1969Apr 27Oct 4Apr 26Oct 4
1968May 15Oct 9Apr 23Nov 10
1967Jun 1Oct 16May 4Oct 29
1966Apr 28Oct 13Apr 27Oct 14
1965May 9Sep 17May 9Sep 18
1964May 9Oct 24May 8Nov 4
1963May 12Nov 1Apr 24Nov 16
1962May 27Oct 16May 15Nov 11
1961May 13Oct 8Apr 26Oct 8
1960May 19Oct 10May 19Oct 30
1959May 20Sep 28May 4Oct 29
1958Apr 26Oct 21Apr 25Oct 21
1957May 23Oct 4Apr 26Nov 2
1956May 14Oct 13May 14Oct 24
1955May 16Oct 6May 16Nov 2
1954Jun 10Oct 24May 1Oct 24
1953May 29Oct 19May 11Oct 19
1952May 17Nov 5Apr 13Nov 9
1951May 2Oct 22Apr 30Oct 22

"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.