Built 2026-10-19 (19 October 2026)

Lookout Mountain Threshold Days by Year (USS0007S04S)

11 fixed thresholds counted per year at Lookout Mountain (USS0007S04S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lookout Mountain Thresholds

  • Lookout Mountain: days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1990 with 30.
  • Lookout Mountain: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 2022 with 10.
  • Lookout Mountain: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2002 with 29.
  • Lookout Mountain: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1997 with 28.
  • 11 fixed thresholds have at least one qualifying day at Lookout Mountain.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at Lookout Mountain Days per year at Lookout Mountain with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2002. 01020301985: 261986: 81990: 151991: 91992: 231993: 141994: 191995: 61996: 101997: 91998: 121999: 42000: 102001: 72002: 292003: 232004: 152005: 222006: 52007: 42009: 22010: 32011: 42012: 42013: 62014: 62016: 82017: 32018: 102019: 22020: 162021: 92022: 12023: 62024: 12025: 32026: 11985199219962000200420092013201820222026
Days per year at Lookout Mountain with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2002.
Days at or above 30 C (86 F) per year at Lookout Mountain
YearDaysDecade average
19852617
1986817
19901512.1
1991912.1
19922312.1
19931412.1
19941912.1
1995612.1
19961012.1
1997912.1
19981212.1
1999412.1
20001013
2001713
20022913
20032313
20041513
20052213
2006513
2007413
2009213
201035.1
201145.1
201245.1
201365.1
201465.1
201685.1
201735.1
2018105.1
201925.1
2020165.3
202195.3
202215.3
202365.3
202415.3
202535.3
202615.3
First to last qualifying date each year at Lookout Mountain For each year, a bar from the first to the last day at Lookout Mountain meeting 30 C (86 F). 1985: 7 June 1985 to 26 August 19851986: 14 June 1986 to 21 August 19861990: 4 June 1990 to 29 June 19901991: 17 June 1991 to 7 July 19911992: 17 June 1992 to 9 September 19921993: 27 April 1993 to 11 August 19931994: 30 May 1994 to 14 July 19941995: 23 June 1995 to 28 July 19951996: 12 May 1996 to 20 July 19961997: 2 June 1997 to 13 July 19971998: 31 May 1998 to 14 July 19981999: 28 June 1999 to 1 July 19992000: 15 May 2000 to 6 September 20002001: 2 June 2001 to 25 August 20012002: 30 May 2002 to 27 August 20022003: 17 May 2003 to 9 August 20032004: 1 June 2004 to 21 July 20042005: 21 May 2005 to 20 July 20052006: 12 June 2006 to 12 July 20062007: 25 June 2007 to 3 July 20072009: 8 July 2009 to 26 July 20092010: 7 June 2010 to 22 June 20102011: 23 June 2011 to 26 June 20112012: 18 June 2012 to 29 June 20122013: 8 June 2013 to 27 June 20132014: 2 June 2014 to 28 June 20142016: 17 June 2016 to 24 July 20162017: 17 June 2017 to 23 June 20172018: 4 June 2018 to 28 June 20182019: 25 August 2019 to 26 August 20192020: 4 June 2020 to 7 September 20202021: 9 June 2021 to 10 July 20212022: 12 June 2022 to 12 June 20222023: 26 June 2023 to 6 August 20232024: 12 June 2024 to 12 June 20242025: 15 June 2025 to 11 July 20252026: 22 June 2026 to 22 June 202619851993199820032009201420202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lookout Mountain meeting 30 C (86 F).
First to last qualifying date each year at Lookout Mountain
YearFirst dateLast date
19851985-06-071985-08-26
19861986-06-141986-08-21
19901990-06-041990-06-29
19911991-06-171991-07-07
19921992-06-171992-09-09
19931993-04-271993-08-11
19941994-05-301994-07-14
19951995-06-231995-07-28
19961996-05-121996-07-20
19971997-06-021997-07-13
19981998-05-311998-07-14
19991999-06-281999-07-01
20002000-05-152000-09-06
20012001-06-022001-08-25
20022002-05-302002-08-27
20032003-05-172003-08-09
20042004-06-012004-07-21
20052005-05-212005-07-20
20062006-06-122006-07-12
20072007-06-252007-07-03
20092009-07-082009-07-26
20102010-06-072010-06-22
20112011-06-232011-06-26
20122012-06-182012-06-29
20132013-06-082013-06-27
20142014-06-022014-06-28
20162016-06-172016-07-24
20172017-06-172017-06-23
20182018-06-042018-06-28
20192019-08-252019-08-26
20202020-06-042020-09-07
20212021-06-092021-07-10
20222022-06-122022-06-12
20232023-06-262023-08-06
20242024-06-122024-06-12
20252025-06-152025-07-11
20262026-06-222026-06-22

Every Fixed Threshold

Fixed thresholds at Lookout Mountain
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days372920021
35 C (95 F): Days2219942
90 F (32.2 C): Days20819901
0 C (32 F): Ice days (max372819974
0 C (32 F): Frost days (min35157199838
-10 C (14 F): Days with min352419923
-20 C (-4 F): Days with min2320113
20 C (68 F): Tropical nights (min1120201
10 mm (0.39 in): Days with 10 mm or more rain4530199023
25 mm (0.98 in): Days with 25 mm or more rain401020221
50 mm (1.97 in): Days with 50 mm or more rain7219982

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1985.

Download the Data

  • Data for Lookout Mountain threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).