All-time weather records — Unicoi, TN

Record high
102.0°F
July 1, 2012
Record low
-20.0°F
January 21, 1985
Wettest day
3.68 in
May 7, 1984

Climate change signal in Unicoi

16.7%

of Unicoi's all-time daily heat records were set in the last decade (61 of 366 records since 2015).

15.8%

of all-time daily cold records were set in the last decade (58 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1970s
4
12
1980s
86
131
1990s
84
71
2000s
97
59
2010s
71
63
2020s
24
30

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1979, the latest in 2025. Period of observation: 1979-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 77.0°F — Jan 2, 2022 -20.0°F — Jan 21, 1985 3.04 in — Jan 28, 1998
February 82.0°F — Feb 22, 2018 -11.0°F — Feb 5, 1996 2.25 in — Feb 14, 1984
March 84.9°F — Mar 31, 1998 -5.1°F — Mar 3, 1980 2.45 in — Mar 18, 2002
April 90.0°F — Apr 30, 2017 19.0°F — Apr 8, 1982 3.44 in — Apr 13, 2020
May 93.9°F — May 21, 2022 24.1°F — May 22, 2002 3.68 in — May 7, 1984
June 100.9°F — Jun 30, 2012 37.0°F — Jun 1, 1984 3.27 in — Jun 17, 1980
July 102.0°F — Jul 1, 2012 45.0°F — Jul 2, 1988 3.28 in — Jul 2, 2021
August 100.9°F — Aug 21, 1983 45.0°F — Aug 8, 1989 3.32 in — Aug 4, 2023
September 98.1°F — Sep 11, 2019 30.9°F — Sep 23, 1983 2.86 in — Sep 26, 2024
October 91.9°F — Oct 4, 2019 21.9°F — Oct 23, 1987 2.48 in — Oct 24, 2017
November 84.0°F — Nov 5, 2003 1.0°F — Nov 16, 1986 3.25 in — Nov 12, 2020
December 78.1°F — Dec 6, 2001 -5.1°F — Dec 24, 2022 2.28 in — Dec 5, 1993

Click a month to see every daily record for that month in Unicoi.