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.
Days at or above 30 C (86 F)
37 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1985 | 26 | 17 |
| 1986 | 8 | 17 |
| 1990 | 15 | 12.1 |
| 1991 | 9 | 12.1 |
| 1992 | 23 | 12.1 |
| 1993 | 14 | 12.1 |
| 1994 | 19 | 12.1 |
| 1995 | 6 | 12.1 |
| 1996 | 10 | 12.1 |
| 1997 | 9 | 12.1 |
| 1998 | 12 | 12.1 |
| 1999 | 4 | 12.1 |
| 2000 | 10 | 13 |
| 2001 | 7 | 13 |
| 2002 | 29 | 13 |
| 2003 | 23 | 13 |
| 2004 | 15 | 13 |
| 2005 | 22 | 13 |
| 2006 | 5 | 13 |
| 2007 | 4 | 13 |
| 2009 | 2 | 13 |
| 2010 | 3 | 5.1 |
| 2011 | 4 | 5.1 |
| 2012 | 4 | 5.1 |
| 2013 | 6 | 5.1 |
| 2014 | 6 | 5.1 |
| 2016 | 8 | 5.1 |
| 2017 | 3 | 5.1 |
| 2018 | 10 | 5.1 |
| 2019 | 2 | 5.1 |
| 2020 | 16 | 5.3 |
| 2021 | 9 | 5.3 |
| 2022 | 1 | 5.3 |
| 2023 | 6 | 5.3 |
| 2024 | 1 | 5.3 |
| 2025 | 3 | 5.3 |
| 2026 | 1 | 5.3 |
| Year | First date | Last date |
|---|---|---|
| 1985 | 1985-06-07 | 1985-08-26 |
| 1986 | 1986-06-14 | 1986-08-21 |
| 1990 | 1990-06-04 | 1990-06-29 |
| 1991 | 1991-06-17 | 1991-07-07 |
| 1992 | 1992-06-17 | 1992-09-09 |
| 1993 | 1993-04-27 | 1993-08-11 |
| 1994 | 1994-05-30 | 1994-07-14 |
| 1995 | 1995-06-23 | 1995-07-28 |
| 1996 | 1996-05-12 | 1996-07-20 |
| 1997 | 1997-06-02 | 1997-07-13 |
| 1998 | 1998-05-31 | 1998-07-14 |
| 1999 | 1999-06-28 | 1999-07-01 |
| 2000 | 2000-05-15 | 2000-09-06 |
| 2001 | 2001-06-02 | 2001-08-25 |
| 2002 | 2002-05-30 | 2002-08-27 |
| 2003 | 2003-05-17 | 2003-08-09 |
| 2004 | 2004-06-01 | 2004-07-21 |
| 2005 | 2005-05-21 | 2005-07-20 |
| 2006 | 2006-06-12 | 2006-07-12 |
| 2007 | 2007-06-25 | 2007-07-03 |
| 2009 | 2009-07-08 | 2009-07-26 |
| 2010 | 2010-06-07 | 2010-06-22 |
| 2011 | 2011-06-23 | 2011-06-26 |
| 2012 | 2012-06-18 | 2012-06-29 |
| 2013 | 2013-06-08 | 2013-06-27 |
| 2014 | 2014-06-02 | 2014-06-28 |
| 2016 | 2016-06-17 | 2016-07-24 |
| 2017 | 2017-06-17 | 2017-06-23 |
| 2018 | 2018-06-04 | 2018-06-28 |
| 2019 | 2019-08-25 | 2019-08-26 |
| 2020 | 2020-06-04 | 2020-09-07 |
| 2021 | 2021-06-09 | 2021-07-10 |
| 2022 | 2022-06-12 | 2022-06-12 |
| 2023 | 2023-06-26 | 2023-08-06 |
| 2024 | 2024-06-12 | 2024-06-12 |
| 2025 | 2025-06-15 | 2025-07-11 |
| 2026 | 2026-06-22 | 2026-06-22 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 37 | 29 | 2002 | 1 |
| 35 C (95 F): Days | 2 | 2 | 1994 | 2 |
| 90 F (32.2 C): Days | 20 | 8 | 1990 | 1 |
| 0 C (32 F): Ice days (max | 37 | 28 | 1997 | 4 |
| 0 C (32 F): Frost days (min | 35 | 157 | 1998 | 38 |
| -10 C (14 F): Days with min | 35 | 24 | 1992 | 3 |
| -20 C (-4 F): Days with min | 2 | 3 | 2011 | 3 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 2020 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 45 | 30 | 1990 | 23 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 40 | 10 | 2022 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 2 | 1998 | 2 |
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
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).