Last Frost Day

Frost history / Tahoe City, CA

Tahoe City, CA: frost dates by year

Last spring and first fall frost at NOAA station USC00048758, 1951 to 2025, measured from daily minimum temperatures.

Elevation 6,230 ft, 39.168, -120.143. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJun 15Sep 19
EarliestMay 14 (2009)Aug 7 (1976)
LatestJul 22 (1987)Oct 23 (2020)
Trend1.0 days earlier per decade1.5 days later per decade
Years with data7474

At 28°F (hard freeze) the median last spring date is May 26 and the median first fall date is Oct 8.

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)

Apr 30May 15May 30Jun 14Jun 29Jul 14Jul 2919601970198019902000201020201951: Jul 41952: Jun 301953: Jun 271954: Jun 181955: Jul 61956: Jun 201957: Jun 161958: Jun 41959: Jun 101960: May 271961: May 311962: Jun 71963: Jun 301964: Jun 191965: Jun 151966: Jun 41967: Jun 131968: Jun 131969: Jun 281970: Jun 111971: Jun 51972: Jun 111973: Jun 181974: Jul 111975: Jul 21976: Jun 121978: Jun 241979: Jun 181980: Jun 131981: Jun 151982: Jun 81983: Jul 201984: Jun 211985: Jun 21986: May 221987: Jul 221988: Jun 91989: Jul 11990: Jun 131991: Jun 261992: Jun 161993: Jun 221994: Jun 181995: Jun 211996: Jun 271997: Jul 11998: May 301999: Jun 102000: May 172001: Jun 132002: Jun 92003: May 202004: Jun 112005: Jun 192006: Jun 142007: Jun 72008: Jun 112009: May 142010: Jun 172011: Jun 72012: Jun 262013: Jun 202014: Jun 262015: May 192016: Jun 72017: Jun 132018: Jun 102019: Jun 82020: Jun 172021: Jun 102022: Jun 192023: Jun 212024: Jun 182025: Jun 27

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 281952: Sep 101953: Sep 291954: Aug 151955: Sep 161956: Oct 111957: Aug 301958: Sep 131959: Sep 151960: Aug 231961: Sep 171962: Oct 51963: Oct 121964: Sep 11965: Sep 171966: Sep 141967: Oct 31968: Aug 221969: Oct 31970: Sep 51971: Sep 181972: Sep 111973: Aug 241974: Sep 141975: Oct 71976: Aug 71977: Sep 201979: Oct 201980: Sep 201981: Oct 41982: Sep 161983: Sep 201984: Sep 241985: Sep 101986: Sep 101987: Oct 141988: Sep 181989: Sep 31990: Oct 81991: Oct 211992: Oct 31993: Sep 191994: Sep 111995: Sep 291996: Sep 51997: Sep 151998: Sep 101999: Oct 72000: Sep 52001: Oct 92002: Sep 72003: Oct 102004: Sep 202005: Sep 112006: Sep 162007: Sep 242008: Sep 12009: Sep 302010: Sep 92011: Oct 52012: Oct 212013: Sep 222014: Sep 262015: Sep 52016: Sep 222017: Sep 212018: Oct 72019: Sep 172020: Oct 232021: Sep 292022: Sep 222023: Sep 222024: Aug 252025: Oct 3

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
2025Jun 27Oct 3May 14Oct 12
2024Jun 18Aug 25May 7Oct 18
2023Jun 21Sep 22Jun 20Oct 12
2022Jun 19Sep 22May 21Oct 23
2021Jun 10Sep 29Jun 10Oct 9
2020Jun 17Oct 23Jun 8Oct 26
2019Jun 8Sep 17May 20Sep 29
2018Jun 10Oct 7Apr 30Oct 14
2017Jun 13Sep 21Jun 10Oct 4
2016Jun 7Sep 22May 23Sep 23
2015May 19Sep 5May 7Oct 30
2014Jun 26Sep 26May 12Oct 22
2013Jun 20Sep 22May 24Sep 26
2012Jun 26Oct 21Jun 6Oct 23
2011Jun 7Oct 5Jun 3Oct 7
2010Jun 17Sep 9Jun 12Oct 26
2009May 14Sep 30May 1Sep 30
2008Jun 11Sep 1May 12Oct 10
2007Jun 7Sep 24Jun 7Sep 29
2006Jun 14Sep 16May 29Sep 16
2005Jun 19Sep 11Jun 7Sep 11
2004Jun 11Sep 20May 12Sep 20
2003May 20Oct 10May 18Oct 30
2002Jun 9Sep 7May 22Oct 24
2001Jun 13Oct 9May 4Nov 9
2000May 17Sep 5May 12Oct 12
1999Jun 10Oct 7Jun 8Oct 17
1998May 30Sep 10May 30Oct 4
1997Jul 1Sep 15May 1Oct 8
1996Jun 27Sep 5May 4Oct 17
1995Jun 21Sep 29Jun 7Oct 4
1994Jun 18Sep 11Jun 16Oct 15
1993Jun 22Sep 19May 8Oct 19
1992Jun 16Oct 3Jun 13Nov 3
1991Jun 26Oct 21May 19Oct 24
1990Jun 13Oct 8Jun 1Oct 8
1989Jul 1Sep 3May 29Oct 25
1988Jun 9Sep 18Jun 8Nov 9
1987Jul 22Oct 14May 2Nov 2
1986May 22Sep 10May 22Sep 18
1985Jun 2Sep 10May 30Sep 12
1984Jun 21Sep 24May 16Sep 25
1983Jul 20Sep 20May 14Sep 20
1982Jun 8Sep 16Jun 6Oct 1
1981Jun 15Oct 4Jun 13Oct 5
1980Jun 13Sep 20Jun 6Oct 14
1979Jun 18Oct 20May 30Oct 21
1978Jun 24no dataMay 26no data
1977no dataSep 20no dataSep 23
1976Jun 12Aug 7Jun 4Oct 17
1975Jul 2Oct 7Jul 1Oct 7
1974Jul 11Sep 14May 21Nov 2
1973Jun 18Aug 24Jun 15Sep 25
1972Jun 11Sep 11May 21Sep 12
1971Jun 5Sep 18May 31Sep 27
1970Jun 11Sep 5May 11Sep 22
1969Jun 28Oct 3May 1Oct 5
1968Jun 13Aug 22May 24Sep 21
1967Jun 13Oct 3Jun 1Oct 3
1966Jun 4Sep 14Jun 3Sep 14
1965Jun 15Sep 17May 8Sep 18
1964Jun 19Sep 1May 9Sep 1
1963Jun 30Oct 12May 11Oct 31
1962Jun 7Oct 5May 25Oct 14
1961May 31Sep 17May 27Oct 8
1960May 27Aug 23May 24Oct 9
1959Jun 10Sep 15May 28Sep 15
1958Jun 4Sep 13May 13Sep 24
1957Jun 16Aug 30May 20Oct 4
1956Jun 20Oct 11Jun 5Oct 12
1955Jul 6Sep 16Jun 2Sep 25
1954Jun 18Aug 15Jun 6Oct 24
1953Jun 27Sep 29Jun 13Oct 15
1952Jun 30Sep 10Jun 15Sep 10
1951Jul 4Sep 28Jun 7Oct 4

"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.