Bannister Threshold Days by Year

4 fixed thresholds counted per year at Bannister (ASN00009507): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bannister Thresholds

Bannister: days with 10 mm (0.39 in) or more of precipitation in 114 years, most in 1917 with 44.
Bannister: days with 25 mm (0.98 in) or more of precipitation in 112 years, most in 1917 with 12.
Bannister: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1921 with 3.
Bannister: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 2017 with 2.
4 fixed thresholds have at least one qualifying day at Bannister.

Days with 10 mm (0.39 in) or more of precipitation

114 years with a qualifying day

Days per year at Bannister with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Bannister
Year	Days	Decade average
1907	26	21.3
1908	19	21.3
1909	19	21.3
1910	34	26.5
1911	13	26.5
1912	19	26.5
1913	26	26.5
1914	9	26.5
1915	32	26.5
1916	26	26.5
1917	44	26.5
1918	36	26.5
1919	26	26.5
1920	29	24.8
1921	32	24.8
1922	21	24.8
1924	27	24.8
1925	17	24.8
1926	32	24.8
1927	24	24.8
1928	27	24.8
1929	14	24.8
1930	28	22.5
1931	28	22.5
1932	26	22.5
1933	18	22.5
1934	23	22.5
1935	17	22.5
1936	21	22.5
1937	19	22.5
1942	27	22.4
1943	20	22.4
1944	17	22.4
1945	26	22.4
1946	30	22.4
1947	23	22.4
1948	18	22.4
1949	18	22.4
1950	18	21.5
1951	22	21.5
1952	18	21.5
1953	22	21.5
1954	20	21.5
1955	38	21.5
1956	23	21.5
1957	20	21.5
1958	18	21.5
1959	16	21.5
1960	22	22
1961	23	22
1962	18	22
1963	32	22
1964	29	22
1965	24	22
1966	18	22
1967	22	22
1968	24	22
1969	8	22
1970	23	18
1971	14	18
1972	14	18
1973	23	18
1974	26	18
1975	17	18
1976	16	18
1977	14	18
1978	22	18
1979	11	18
1980	19	19.4
1981	21	19.4
1982	12	19.4
1983	29	19.4
1984	18	19.4
1985	15	19.4
1986	20	19.4
1987	16	19.4
1988	24	19.4
1989	20	19.4
1990	19	21
1991	23	21
1992	22	21
1993	20	21
1994	14	21
1995	23	21
1996	27	21
1997	16	21
1998	22	21
1999	24	21
2000	19	19.7
2001	13	19.7
2002	22	19.7
2003	26	19.7
2004	19	19.7
2005	22	19.7
2006	18	19.7
2007	21	19.7
2008	19	19.7
2009	18	19.7
2010	11	18.3
2011	25	18.3
2012	16	18.3
2013	23	18.3
2014	20	18.3
2015	15	18.3
2016	17	18.3
2017	23	18.3
2018	16	18.3
2019	17	18.3
2020	18	19
2021	30	19
2022	21	19
2023	17	19
2024	13	19
2025	15	19

For each year, a bar from the first to the last day at Bannister meeting 10 mm (0.39 in).

First to last qualifying date each year at Bannister
Year	First date	Last date
1907	1907-03-08	1907-10-05
1908	1908-04-24	1908-09-23
1909	1909-01-19	1909-09-28
1910	1910-04-15	1910-11-27
1911	1911-04-27	1911-10-11
1912	1912-05-05	1912-09-28
1913	1913-04-11	1913-12-20
1914	1914-02-18	1914-11-22
1915	1915-01-08	1915-10-20
1916	1916-01-29	1916-11-23
1917	1917-02-10	1917-12-20
1918	1918-02-15	1918-10-28
1919	1919-01-17	1919-11-04
1920	1920-03-13	1920-09-11
1921	1921-05-08	1921-12-18
1922	1922-04-29	1922-12-16
1924	1924-05-12	1924-11-10
1925	1925-01-24	1925-12-31
1926	1926-03-11	1926-11-19
1927	1927-03-13	1927-10-07
1928	1928-01-10	1928-10-20
1929	1929-02-16	1929-09-24
1930	1930-03-07	1930-10-05
1931	1931-04-06	1931-12-16
1932	1932-03-29	1932-10-23
1933	1933-01-07	1933-10-16
1934	1934-03-09	1934-11-04
1935	1935-02-01	1935-10-21
1936	1936-04-15	1936-12-27
1937	1937-02-13	1937-09-14
1942	1942-03-14	1942-12-01
1943	1943-01-31	1943-10-12
1944	1944-04-29	1944-12-07
1945	1945-05-16	1945-09-22
1946	1946-04-18	1946-11-12
1947	1947-04-16	1947-10-25
1948	1948-03-29	1948-12-24
1949	1949-05-10	1949-11-14
1950	1950-05-06	1950-11-05
1951	1951-02-14	1951-12-02
1952	1952-02-13	1952-10-14
1953	1953-05-06	1953-11-15
1954	1954-04-23	1954-11-11
1955	1955-02-15	1955-10-27
1956	1956-03-05	1956-11-30
1957	1957-04-22	1957-10-31
1958	1958-05-22	1958-12-21
1959	1959-02-08	1959-12-31
1960	1960-01-01	1960-09-23
1961	1961-01-27	1961-10-18
1962	1962-05-13	1962-11-09
1963	1963-01-11	1963-10-31
1964	1964-03-31	1964-12-18
1965	1965-03-26	1965-11-01
1966	1966-05-15	1966-12-27
1967	1967-04-22	1967-11-15
1968	1968-02-03	1968-10-28
1969	1969-04-08	1969-08-01
1970	1970-02-07	1970-10-04
1971	1971-02-01	1971-10-05
1972	1972-04-20	1972-09-11
1973	1973-04-28	1973-09-25
1974	1974-04-04	1974-10-23
1975	1975-04-15	1975-11-16
1976	1976-01-07	1976-11-10
1977	1977-05-16	1977-10-31
1978	1978-02-24	1978-12-15
1979	1979-02-21	1979-11-12
1980	1980-02-11	1980-12-31
1981	1981-02-18	1981-11-26
1982	1982-01-21	1982-10-05
1983	1983-02-06	1983-12-31
1984	1984-04-30	1984-11-08
1985	1985-04-09	1985-09-18
1986	1986-02-22	1986-11-09
1987	1987-04-08	1987-11-29
1988	1988-03-24	1988-12-03
1989	1989-01-26	1989-10-18
1990	1990-01-29	1990-10-13
1991	1991-02-26	1991-12-25
1992	1992-02-09	1992-11-19
1993	1993-02-06	1993-12-28
1994	1994-05-23	1994-09-11
1995	1995-02-24	1995-10-18
1996	1996-05-31	1996-11-16
1997	1997-02-24	1997-10-10
1998	1998-03-10	1998-12-15
1999	1999-03-19	1999-12-30
2000	2000-01-15	2000-09-06
2001	2001-05-06	2001-12-01
2002	2002-01-17	2002-10-18
2003	2003-02-10	2003-11-18
2004	2004-05-08	2004-10-21
2005	2005-03-31	2005-10-06
2006	2006-01-13	2006-12-21
2007	2007-04-16	2007-10-27
2008	2008-02-08	2008-10-24
2009	2009-05-22	2009-11-19
2010	2010-03-23	2010-09-08
2011	2011-01-06	2011-12-13
2012	2012-01-01	2012-12-13
2013	2013-03-15	2013-09-30
2014	2014-03-23	2014-09-28
2015	2015-03-15	2015-12-05
2016	2016-01-20	2016-12-12
2017	2017-02-10	2017-12-18
2018	2018-01-16	2018-08-29
2019	2019-06-07	2019-11-01
2020	2020-02-28	2020-11-10
2021	2021-03-02	2021-10-27
2022	2022-04-04	2022-10-24
2023	2023-03-26	2023-09-14
2024	2024-05-03	2024-10-02
2025	2025-03-14	2025-09-06

Every Fixed Threshold

Fixed thresholds at Bannister
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	114	44	1917	15
25 mm (0.98 in): Days with 25 mm or more rain	112	12	1917	5
50 mm (1.97 in): Days with 50 mm or more rain	32	3	1921	1
100 mm (3.94 in): Days with 100 mm or more rain	6	2	2017	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Bannister 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Bannister Threshold Days by Year

Key Facts for Bannister Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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