Chattanooga Wb City Threshold Days by Year (USW00053875)
17 fixed thresholds counted per year at Chattanooga Wb City (USW00053875): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Chattanooga Wb City Thresholds
- Chattanooga Wb City: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1936 with 121.
- Chattanooga Wb City: days with a maximum temperature at or above 90 F (32.2 C) in 63 years, most in 1925 with 90.
- Chattanooga Wb City: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1886 with 73.
- Chattanooga Wb City: nights with a minimum temperature at or above 20 C (68 F) in 63 years, most in 1921 with 102.
- 17 fixed thresholds have at least one qualifying day at Chattanooga Wb City.
Days at or above 30 C (86 F)
63 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1879 | 61 | 61 |
| 1880 | 68 | 66.2 |
| 1881 | 90 | 66.2 |
| 1882 | 46 | 66.2 |
| 1883 | 65 | 66.2 |
| 1884 | 72 | 66.2 |
| 1885 | 64 | 66.2 |
| 1886 | 54 | 66.2 |
| 1887 | 79 | 66.2 |
| 1888 | 67 | 66.2 |
| 1889 | 57 | 66.2 |
| 1890 | 66 | 82.3 |
| 1891 | 79 | 82.3 |
| 1892 | 69 | 82.3 |
| 1893 | 82 | 82.3 |
| 1894 | 82 | 82.3 |
| 1895 | 75 | 82.3 |
| 1896 | 95 | 82.3 |
| 1897 | 83 | 82.3 |
| 1898 | 91 | 82.3 |
| 1899 | 101 | 82.3 |
| 1900 | 88 | 77.4 |
| 1901 | 79 | 77.4 |
| 1902 | 94 | 77.4 |
| 1903 | 76 | 77.4 |
| 1904 | 78 | 77.4 |
| 1905 | 75 | 77.4 |
| 1906 | 65 | 77.4 |
| 1907 | 81 | 77.4 |
| 1908 | 74 | 77.4 |
| 1909 | 64 | 77.4 |
| 1910 | 63 | 73.5 |
| 1911 | 103 | 73.5 |
| 1912 | 61 | 73.5 |
| 1913 | 84 | 73.5 |
| 1914 | 93 | 73.5 |
| 1915 | 70 | 73.5 |
| 1916 | 68 | 73.5 |
| 1917 | 47 | 73.5 |
| 1918 | 71 | 73.5 |
| 1919 | 75 | 73.5 |
| 1920 | 44 | 76.3 |
| 1921 | 101 | 76.3 |
| 1922 | 68 | 76.3 |
| 1923 | 61 | 76.3 |
| 1924 | 72 | 76.3 |
| 1925 | 119 | 76.3 |
| 1926 | 84 | 76.3 |
| 1927 | 73 | 76.3 |
| 1928 | 67 | 76.3 |
| 1929 | 74 | 76.3 |
| 1930 | 85 | 99.6 |
| 1931 | 106 | 99.6 |
| 1932 | 80 | 99.6 |
| 1933 | 96 | 99.6 |
| 1934 | 95 | 99.6 |
| 1935 | 99 | 99.6 |
| 1936 | 121 | 99.6 |
| 1937 | 107 | 99.6 |
| 1938 | 98 | 99.6 |
| 1939 | 109 | 99.6 |
| 1949 | 96 | 96 |
| 1950 | 63 | 63 |
| Year | First date | Last date |
|---|---|---|
| 1879 | 1879-05-20 | 1879-10-08 |
| 1880 | 1880-04-05 | 1880-08-30 |
| 1881 | 1881-05-07 | 1881-09-25 |
| 1882 | 1882-05-25 | 1882-09-19 |
| 1883 | 1883-05-08 | 1883-09-16 |
| 1884 | 1884-05-11 | 1884-10-08 |
| 1885 | 1885-05-18 | 1885-09-15 |
| 1886 | 1886-05-13 | 1886-09-28 |
| 1887 | 1887-04-12 | 1887-09-22 |
| 1888 | 1888-05-26 | 1888-09-21 |
| 1889 | 1889-04-11 | 1889-09-16 |
| 1890 | 1890-04-08 | 1890-09-19 |
| 1891 | 1891-04-16 | 1891-10-04 |
| 1892 | 1892-05-04 | 1892-09-25 |
| 1893 | 1893-04-07 | 1893-09-22 |
| 1894 | 1894-04-17 | 1894-09-16 |
| 1895 | 1895-05-01 | 1895-09-26 |
| 1896 | 1896-04-16 | 1896-09-19 |
| 1897 | 1897-05-22 | 1897-10-14 |
| 1898 | 1898-05-01 | 1898-10-05 |
| 1899 | 1899-04-27 | 1899-09-12 |
| 1900 | 1900-05-13 | 1900-10-01 |
| 1901 | 1901-04-30 | 1901-09-11 |
| 1902 | 1902-04-25 | 1902-09-23 |
| 1903 | 1903-05-20 | 1903-10-03 |
| 1904 | 1904-05-23 | 1904-10-10 |
| 1905 | 1905-05-04 | 1905-09-28 |
| 1906 | 1906-04-12 | 1906-09-15 |
| 1907 | 1907-03-21 | 1907-09-24 |
| 1908 | 1908-03-18 | 1908-09-15 |
| 1909 | 1909-05-29 | 1909-10-05 |
| 1910 | 1910-03-25 | 1910-10-19 |
| 1911 | 1911-05-10 | 1911-10-07 |
| 1912 | 1912-05-08 | 1912-09-17 |
| 1913 | 1913-05-04 | 1913-09-12 |
| 1914 | 1914-05-11 | 1914-09-22 |
| 1915 | 1915-04-25 | 1915-09-28 |
| 1916 | 1916-05-06 | 1916-10-07 |
| 1917 | 1917-04-18 | 1917-09-09 |
| 1918 | 1918-05-09 | 1918-10-06 |
| 1919 | 1919-06-01 | 1919-10-11 |
| 1920 | 1920-05-23 | 1920-09-27 |
| 1921 | 1921-05-23 | 1921-09-25 |
| 1922 | 1922-05-09 | 1922-10-05 |
| 1923 | 1923-06-07 | 1923-09-30 |
| 1924 | 1924-05-05 | 1924-09-21 |
| 1925 | 1925-04-15 | 1925-10-07 |
| 1926 | 1926-05-24 | 1926-10-18 |
| 1927 | 1927-04-28 | 1927-10-06 |
| 1928 | 1928-03-29 | 1928-10-14 |
| 1929 | 1929-03-24 | 1929-09-09 |
| 1930 | 1930-04-11 | 1930-09-24 |
| 1931 | 1931-04-17 | 1931-10-12 |
| 1932 | 1932-06-05 | 1932-09-18 |
| 1933 | 1933-05-11 | 1933-10-01 |
| 1934 | 1934-04-04 | 1934-09-25 |
| 1935 | 1935-03-22 | 1935-10-13 |
| 1936 | 1936-04-15 | 1936-09-28 |
| 1937 | 1937-04-18 | 1937-10-30 |
| 1938 | 1938-04-26 | 1938-10-19 |
| 1939 | 1939-05-11 | 1939-10-24 |
| 1949 | 1949-05-04 | 1949-10-10 |
| 1950 | 1950-05-04 | 1950-10-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 63 | 121 | 1936 | 63 |
| 35 C (95 F): Days | 51 | 42 | 1936 | 3 |
| 40 C (104 F): Days | 4 | 2 | 1925 | 1 |
| 90 F (32.2 C): Days | 63 | 90 | 1925 | 24 |
| 100 F (37.8 C): Days | 13 | 11 | 1936 | 11 |
| 0 C (32 F): Ice days (max | 53 | 12 | 1899 | 1 |
| 0 C (32 F): Frost days (min | 63 | 73 | 1886 | 41 |
| -10 C (14 F): Days with min | 49 | 12 | 1917 | 2 |
| -20 C (-4 F): Days with min | 3 | 2 | 1886 | 1 |
| 20 C (68 F): Tropical nights (min | 63 | 102 | 1921 | 67 |
| 25 C (77 F): Days with min | 23 | 6 | 1936 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 61 | 60 | 1892 | 41 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 61 | 24 | 1929 | 12 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 56 | 6 | 1912 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 11 | 2 | 1899 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 26 | 2 | 1905 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1886 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1879.
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 (2025-12-31).