Last Frost Day

Frost history / Mt Mitchell, NC

Mt Mitchell, NC: frost dates by year

Last spring and first fall frost at NOAA station USC00315923, 1980 to 2025, measured from daily minimum temperatures.

Elevation 6,240 ft, 35.759, -82.271. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 17Oct 4
EarliestApr 24 (2003)Aug 29 (1986)
LatestJun 13 (1985)Oct 22 (1998)
Trend3.5 days earlier per decade3.6 days later per decade
Years with data4445

At 28°F (hard freeze) the median last spring date is May 7 and the median first fall date is Oct 12.

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 15Apr 30May 15May 30Jun 14Jun 29198019902000201020201980: Jun 91981: May 211982: Apr 301983: May 181984: May 311985: Jun 131986: May 221987: May 81988: Jun 111989: May 161990: May 111991: May 71992: May 291993: May 221994: May 201995: May 61996: May 141997: May 281998: Jun 71999: May 12000: May 162001: May 232002: May 232003: Apr 242004: May 52006: May 202007: May 202008: May 182009: May 202010: May 102011: May 192012: Apr 252013: May 252014: May 182015: May 222016: May 162017: May 92018: Apr 302019: May 152020: May 142021: May 142022: Apr 272023: May 52024: May 12

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27198019902000201020201980: Oct 41981: Sep 181982: Sep 221983: Sep 221984: Sep 161985: Sep 141986: Aug 291987: Oct 11988: Oct 51989: Oct 91990: Sep 241991: Sep 211992: Oct 111993: Sep 281994: Oct 111995: Oct 151996: Oct 101997: Oct 201998: Oct 221999: Sep 222000: Sep 162001: Sep 252002: Oct 172003: Sep 292004: Oct 152005: Oct 172006: Sep 292007: Oct 112008: Oct 22009: Sep 292010: Oct 42011: Oct 12012: Oct 112013: Oct 202014: Oct 52015: Oct 172016: Oct 92017: Oct 172018: Oct 122019: Oct 172020: Sep 212021: Sep 242022: Sep 282023: Oct 82025: Oct 10

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
2025no dataOct 10no dataOct 20
2024May 12no dataApr 23no data
2023May 5Oct 8May 5Oct 8
2022Apr 27Sep 28Apr 27Oct 18
2021May 14Sep 24May 13Oct 17
2020May 14Sep 21May 14Oct 2
2019May 15Oct 17May 15Oct 17
2018Apr 30Oct 12Apr 30Oct 21
2017May 9Oct 17May 8Oct 25
2016May 16Oct 9May 16Oct 22
2015May 22Oct 17May 2Oct 17
2014May 18Oct 5May 17Oct 5
2013May 25Oct 20May 14Oct 20
2012Apr 25Oct 11Apr 25Oct 29
2011May 19Oct 1May 6Oct 1
2010May 10Oct 4May 10Oct 4
2009May 20Sep 29May 19Oct 17
2008May 18Oct 2May 1Oct 19
2007May 20Oct 11May 19Oct 12
2006May 20Sep 29May 19Oct 13
2005no dataOct 17no dataOct 23
2004May 5Oct 15May 5Oct 16
2003Apr 24Sep 29Apr 24Sep 29
2002May 23Oct 17May 23Oct 18
2001May 23Sep 25Apr 19Sep 25
2000May 16Sep 16Apr 27Oct 8
1999May 1Sep 22May 1Oct 21
1998Jun 7Oct 22Apr 12Oct 22
1997May 28Oct 20May 16Oct 22
1996May 14Oct 10May 14Oct 10
1995May 6Oct 15May 3Oct 15
1994May 20Oct 11May 19Oct 11
1993May 22Sep 28May 22Sep 30
1992May 29Oct 11May 9Oct 12
1991May 7Sep 21Apr 23Oct 6
1990May 11Sep 24May 11Sep 24
1989May 16Oct 9May 12Oct 9
1988Jun 11Oct 5Apr 29Oct 6
1987May 8Oct 1Apr 9Oct 1
1986May 22Aug 29May 3Oct 15
1985Jun 13Sep 14May 18Oct 6
1984May 31Sep 16May 31Oct 1
1983May 18Sep 22Apr 25Sep 22
1982Apr 30Sep 22Apr 23Oct 15
1981May 21Sep 18May 3Sep 19
1980Jun 9Oct 4Jun 9Oct 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 1991–2020 frost probabilities.