Hatton 9 SE Threshold Days by Year (USC00453546)
17 fixed thresholds counted per year at Hatton 9 SE (USC00453546): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hatton 9 SE Thresholds
- Hatton 9 SE: days with 10 mm (0.39 in) or more of precipitation in 107 years, most in 1948 with 11.
- Hatton 9 SE: days with a maximum temperature at or below 0 C (32 F) in 94 years, most in 1985 with 82.
- Hatton 9 SE: days with a maximum temperature at or above 30 C (86 F) in 93 years, most in 1918 with 88.
- Hatton 9 SE: days with a maximum temperature at or above 35 C (95 F) in 93 years, most in 1908 with 44.
- 17 fixed thresholds have at least one qualifying day at Hatton 9 SE.
Days at or above 30 C (86 F)
93 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1906 | 78 | 73 |
| 1907 | 63 | 73 |
| 1908 | 80 | 73 |
| 1909 | 71 | 73 |
| 1910 | 69 | 65.3 |
| 1911 | 59 | 65.3 |
| 1912 | 48 | 65.3 |
| 1913 | 52 | 65.3 |
| 1914 | 70 | 65.3 |
| 1915 | 66 | 65.3 |
| 1916 | 56 | 65.3 |
| 1917 | 78 | 65.3 |
| 1918 | 88 | 65.3 |
| 1919 | 67 | 65.3 |
| 1920 | 58 | 65.7 |
| 1921 | 60 | 65.7 |
| 1923 | 66 | 65.7 |
| 1924 | 77 | 65.7 |
| 1925 | 69 | 65.7 |
| 1926 | 72 | 65.7 |
| 1927 | 51 | 65.7 |
| 1928 | 63 | 65.7 |
| 1929 | 75 | 65.7 |
| 1930 | 61 | 65.8 |
| 1931 | 65 | 65.8 |
| 1932 | 54 | 65.8 |
| 1933 | 55 | 65.8 |
| 1934 | 81 | 65.8 |
| 1935 | 62 | 65.8 |
| 1936 | 71 | 65.8 |
| 1937 | 62 | 65.8 |
| 1938 | 85 | 65.8 |
| 1939 | 62 | 65.8 |
| 1940 | 80 | 61.9 |
| 1941 | 56 | 61.9 |
| 1942 | 66 | 61.9 |
| 1943 | 66 | 61.9 |
| 1944 | 63 | 61.9 |
| 1945 | 70 | 61.9 |
| 1946 | 59 | 61.9 |
| 1947 | 55 | 61.9 |
| 1948 | 37 | 61.9 |
| 1949 | 67 | 61.9 |
| 1950 | 72 | 59.3 |
| 1951 | 67 | 59.3 |
| 1952 | 68 | 59.3 |
| 1953 | 55 | 59.3 |
| 1954 | 45 | 59.3 |
| 1955 | 55 | 59.3 |
| 1956 | 66 | 59.3 |
| 1959 | 46 | 59.3 |
| 1960 | 57 | 64.5 |
| 1969 | 72 | 64.5 |
| 1970 | 71 | 63.9 |
| 1971 | 58 | 63.9 |
| 1972 | 64 | 63.9 |
| 1973 | 67 | 63.9 |
| 1974 | 72 | 63.9 |
| 1975 | 58 | 63.9 |
| 1976 | 57 | 63.9 |
| 1977 | 68 | 63.9 |
| 1978 | 50 | 63.9 |
| 1979 | 74 | 63.9 |
| 1980 | 44 | 56.7 |
| 1981 | 65 | 56.7 |
| 1982 | 61 | 56.7 |
| 1983 | 57 | 56.7 |
| 1984 | 50 | 56.7 |
| 1985 | 60 | 56.7 |
| 1986 | 62 | 56.7 |
| 1987 | 63 | 56.7 |
| 1988 | 63 | 56.7 |
| 1989 | 42 | 56.7 |
| 1990 | 61 | 53.9 |
| 1991 | 50 | 53.9 |
| 1992 | 62 | 53.9 |
| 1993 | 39 | 53.9 |
| 1994 | 69 | 53.9 |
| 1995 | 37 | 53.9 |
| 1996 | 55 | 53.9 |
| 1997 | 49 | 53.9 |
| 1998 | 63 | 53.9 |
| 1999 | 54 | 53.9 |
| 2000 | 38 | 56.1 |
| 2001 | 60 | 56.1 |
| 2002 | 53 | 56.1 |
| 2003 | 66 | 56.1 |
| 2004 | 60 | 56.1 |
| 2005 | 53 | 56.1 |
| 2007 | 58 | 56.1 |
| 2009 | 61 | 56.1 |
| 2010 | 40 | 43.5 |
| 2011 | 47 | 43.5 |
| Year | First date | Last date |
|---|---|---|
| 1906 | 1906-04-20 | 1906-09-30 |
| 1907 | 1907-05-15 | 1907-10-04 |
| 1908 | 1908-05-06 | 1908-10-10 |
| 1909 | 1909-05-03 | 1909-09-27 |
| 1910 | 1910-04-18 | 1910-09-20 |
| 1911 | 1911-05-30 | 1911-10-08 |
| 1912 | 1912-05-13 | 1912-09-12 |
| 1913 | 1913-05-30 | 1913-09-17 |
| 1914 | 1914-05-13 | 1914-09-24 |
| 1915 | 1915-04-28 | 1915-09-18 |
| 1916 | 1916-06-13 | 1916-09-21 |
| 1917 | 1917-06-08 | 1917-10-04 |
| 1918 | 1918-05-02 | 1918-10-02 |
| 1919 | 1919-05-18 | 1919-09-24 |
| 1920 | 1920-06-21 | 1920-09-17 |
| 1921 | 1921-05-24 | 1921-08-31 |
| 1923 | 1923-05-08 | 1923-10-02 |
| 1924 | 1924-05-09 | 1924-09-16 |
| 1925 | 1925-05-06 | 1925-09-24 |
| 1926 | 1926-04-15 | 1926-08-29 |
| 1927 | 1927-05-14 | 1927-08-24 |
| 1928 | 1928-05-19 | 1928-09-23 |
| 1929 | 1929-05-19 | 1929-09-17 |
| 1930 | 1930-06-06 | 1930-09-21 |
| 1931 | 1931-05-11 | 1931-09-05 |
| 1932 | 1932-06-11 | 1932-09-16 |
| 1933 | 1933-06-12 | 1933-09-04 |
| 1934 | 1934-04-20 | 1934-10-10 |
| 1935 | 1935-06-04 | 1935-10-02 |
| 1936 | 1936-04-17 | 1936-09-20 |
| 1937 | 1937-05-02 | 1937-09-18 |
| 1938 | 1938-05-22 | 1938-09-27 |
| 1939 | 1939-04-28 | 1939-09-23 |
| 1940 | 1940-05-09 | 1940-09-26 |
| 1941 | 1941-05-11 | 1941-08-23 |
| 1942 | 1942-05-20 | 1942-09-27 |
| 1943 | 1943-06-08 | 1943-10-08 |
| 1944 | 1944-05-14 | 1944-09-13 |
| 1945 | 1945-06-17 | 1945-09-15 |
| 1946 | 1946-04-25 | 1946-09-13 |
| 1947 | 1947-05-05 | 1947-09-24 |
| 1948 | 1948-06-06 | 1948-09-14 |
| 1949 | 1949-05-08 | 1949-09-27 |
| 1950 | 1950-05-12 | 1950-09-23 |
| 1951 | 1951-05-22 | 1951-09-19 |
| 1952 | 1952-05-24 | 1952-09-26 |
| 1953 | 1953-07-02 | 1953-09-15 |
| 1954 | 1954-05-17 | 1954-09-25 |
| 1955 | 1955-06-08 | 1955-09-07 |
| 1956 | 1956-04-21 | 1956-09-19 |
| 1959 | 1959-05-13 | 1959-09-14 |
| 1960 | 1960-06-02 | 1960-09-18 |
| 1969 | 1969-05-09 | 1969-09-12 |
| 1970 | 1970-05-16 | 1970-09-28 |
| 1971 | 1971-05-11 | 1971-10-05 |
| 1972 | 1972-05-13 | 1972-09-15 |
| 1973 | 1973-05-13 | 1973-09-12 |
| 1974 | 1974-06-10 | 1974-09-25 |
| 1975 | 1975-05-31 | 1975-10-02 |
| 1976 | 1976-05-16 | 1976-09-29 |
| 1977 | 1977-04-07 | 1977-09-13 |
| 1978 | 1978-06-02 | 1978-09-03 |
| 1979 | 1979-05-22 | 1979-10-12 |
| 1980 | 1980-04-27 | 1980-10-07 |
| 1981 | 1981-06-25 | 1981-09-19 |
| 1982 | 1982-06-10 | 1982-09-19 |
| 1983 | 1983-05-23 | 1983-09-01 |
| 1984 | 1984-05-29 | 1984-09-19 |
| 1985 | 1985-05-16 | 1985-08-30 |
| 1986 | 1986-05-25 | 1986-09-05 |
| 1987 | 1987-04-27 | 1987-09-23 |
| 1988 | 1988-05-11 | 1988-09-14 |
| 1989 | 1989-06-01 | 1989-09-29 |
| 1990 | 1990-05-05 | 1990-09-25 |
| 1991 | 1991-06-10 | 1991-09-27 |
| 1992 | 1992-05-04 | 1992-10-02 |
| 1993 | 1993-05-10 | 1993-09-10 |
| 1994 | 1994-04-18 | 1994-09-27 |
| 1995 | 1995-05-28 | 1995-09-16 |
| 1996 | 1996-06-02 | 1996-09-29 |
| 1997 | 1997-05-12 | 1997-09-26 |
| 1998 | 1998-04-30 | 1998-09-17 |
| 1999 | 1999-05-23 | 1999-09-22 |
| 2000 | 2000-06-04 | 2000-09-14 |
| 2001 | 2001-05-12 | 2001-09-24 |
| 2002 | 2002-06-12 | 2002-09-15 |
| 2003 | 2003-05-24 | 2003-09-27 |
| 2004 | 2004-06-03 | 2004-09-27 |
| 2005 | 2005-05-27 | 2005-09-08 |
| 2007 | 2007-05-08 | 2007-09-14 |
| 2009 | 2009-05-18 | 2009-09-24 |
| 2010 | 2010-06-23 | 2010-09-04 |
| 2011 | 2011-06-22 | 2011-09-25 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 93 | 88 | 1918 | 47 |
| 35 C (95 F): Days | 93 | 44 | 1908 | 8 |
| 40 C (104 F): Days | 58 | 9 | 1906 | 1 |
| 90 F (32.2 C): Days | 93 | 64 | 1908 | 26 |
| 100 F (37.8 C): Days | 86 | 22 | 1906 | 7 |
| 110 F (43.3 C): Days | 4 | 2 | 1928 | 1 |
| 0 C (32 F): Ice days (max | 94 | 82 | 1985 | 6 |
| 0 C (32 F): Frost days (min | 91 | 179 | 1911 | 37 |
| -10 C (14 F): Days with min | 87 | 45 | 1916 | 10 |
| -20 C (-4 F): Days with min | 44 | 13 | 1949 | 1 |
| -30 C (-22 F): Days with min | 4 | 2 | 1909 | 2 |
| 20 C (68 F): Tropical nights (min | 61 | 15 | 1977 | 1 |
| 25 C (77 F): Days with min | 4 | 1 | 1918 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 107 | 11 | 1948 | 1 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 12 | 2 | 1977 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1907 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 5 | 1996 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.
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 (2026-10-12).