Mount Marlow Threshold Days by Year (ASN00038066)

4 fixed thresholds counted per year at Mount Marlow (ASN00038066): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Marlow Thresholds

Mount Marlow: days with 10 mm (0.39 in) or more of precipitation in 97 years, most in 1950 with 28.
Mount Marlow: days with 25 mm (0.98 in) or more of precipitation in 93 years, most in 1950 with 13.
Mount Marlow: days with 50 mm (1.97 in) or more of precipitation in 62 years, most in 1963 with 4.
Mount Marlow: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1917 with 1.
4 fixed thresholds have at least one qualifying day at Mount Marlow.

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

97 years with a qualifying day

Days per year at Mount Marlow with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Mount Marlow
Year	Days	Decade average
1915	8	13.8
1916	22	13.8
1917	19	13.8
1918	9	13.8
1919	11	13.8
1920	19	9.9
1921	16	9.9
1922	8	9.9
1923	8	9.9
1924	16	9.9
1925	7	9.9
1926	8	9.9
1927	6	9.9
1928	5	9.9
1929	6	9.9
1930	13	9.9
1931	10	9.9
1932	11	9.9
1933	11	9.9
1934	8	9.9
1935	11	9.9
1936	8	9.9
1937	6	9.9
1938	5	9.9
1939	16	9.9
1940	6	10
1941	17	10
1942	10	10
1943	11	10
1944	8	10
1945	5	10
1946	4	10
1947	15	10
1948	6	10
1949	18	10
1950	28	12.3
1951	6	12.3
1952	5	12.3
1953	7	12.3
1954	14	12.3
1955	17	12.3
1958	10	12.3
1959	11	12.3
1960	10	8.3
1961	11	8.3
1962	13	8.3
1963	9	8.3
1964	8	8.3
1965	4	8.3
1966	8	8.3
1967	5	8.3
1968	13	8.3
1969	2	8.3
1970	5	12.4
1971	10	12.4
1972	7	12.4
1973	12	12.4
1974	22	12.4
1975	9	12.4
1976	20	12.4
1977	15	12.4
1978	18	12.4
1979	6	12.4
1980	8	11.6
1981	16	11.6
1982	5	11.6
1983	18	11.6
1984	14	11.6
1985	8	11.6
1986	12	11.6
1987	8	11.6
1988	11	11.6
1989	16	11.6
1990	16	11.3
1991	11	11.3
1992	7	11.3
1993	9	11.3
1994	8	11.3
1995	4	11.3
1996	12	11.3
1997	12	11.3
1998	17	11.3
1999	17	11.3
2000	18	9
2001	5	9
2002	5	9
2003	11	9
2004	10	9
2005	6	9
2006	6	9
2007	11	9
2008	9	9
2010	23	13.7
2012	12	13.7
2018	6	13.7
2023	13	13.5
2024	14	13.5

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

First to last qualifying date each year at Mount Marlow
Year	First date	Last date
1915	1915-01-20	1915-12-26
1916	1916-01-15	1916-12-31
1917	1917-01-01	1917-12-29
1918	1918-01-07	1918-11-06
1919	1919-01-20	1919-12-06
1920	1920-01-26	1920-12-05
1921	1921-02-03	1921-10-13
1922	1922-01-16	1922-12-25
1923	1923-01-07	1923-12-26
1924	1924-01-06	1924-11-07
1925	1925-01-12	1925-08-08
1926	1926-01-13	1926-09-26
1927	1927-03-01	1927-12-23
1928	1928-03-26	1928-11-04
1929	1929-03-27	1929-11-16
1930	1930-01-23	1930-12-17
1931	1931-03-14	1931-12-07
1932	1932-02-08	1932-09-30
1933	1933-01-26	1933-12-13
1934	1934-01-27	1934-11-08
1935	1935-06-28	1935-12-30
1936	1936-01-06	1936-12-16
1937	1937-01-01	1937-06-10
1938	1938-01-28	1938-11-14
1939	1939-01-16	1939-11-03
1940	1940-01-10	1940-02-28
1941	1941-01-04	1941-05-28
1942	1942-02-13	1942-12-08
1943	1943-01-04	1943-12-03
1944	1944-01-24	1944-07-10
1945	1945-02-25	1945-07-11
1946	1946-01-10	1946-01-18
1947	1947-02-03	1947-12-21
1948	1948-01-02	1948-12-30
1949	1949-01-24	1949-10-23
1950	1950-01-18	1950-12-19
1951	1951-02-21	1951-12-24
1952	1952-02-16	1952-12-30
1953	1953-01-07	1953-08-04
1954	1954-01-13	1954-12-07
1955	1955-01-15	1955-10-18
1958	1958-01-04	1958-12-29
1959	1959-01-10	1959-12-18
1960	1960-01-09	1960-12-30
1961	1961-01-02	1961-12-19
1962	1962-01-14	1962-12-30
1963	1963-01-10	1963-06-04
1964	1964-01-14	1964-10-08
1965	1965-08-15	1965-12-13
1966	1966-01-06	1966-11-01
1967	1967-02-26	1967-12-29
1968	1968-01-15	1968-12-25
1969	1969-03-15	1969-05-26
1970	1970-03-16	1970-11-06
1971	1971-01-15	1971-10-30
1972	1972-01-04	1972-12-15
1973	1973-01-11	1973-12-30
1974	1974-01-01	1974-12-28
1975	1975-01-02	1975-12-31
1976	1976-01-12	1976-12-23
1977	1977-01-02	1977-12-19
1978	1978-01-14	1978-12-04
1979	1979-02-07	1979-06-20
1980	1980-01-05	1980-10-13
1981	1981-01-16	1981-11-19
1982	1982-03-01	1982-12-03
1983	1983-01-03	1983-12-03
1984	1984-01-02	1984-12-20
1985	1985-02-04	1985-12-09
1986	1986-01-13	1986-12-07
1987	1987-01-26	1987-12-29
1988	1988-04-01	1988-12-26
1989	1989-04-01	1989-12-14
1990	1990-02-21	1990-10-20
1991	1991-01-16	1991-12-10
1992	1992-01-26	1992-12-18
1993	1993-01-19	1993-12-10
1994	1994-02-01	1994-11-27
1995	1995-01-18	1995-11-15
1996	1996-01-01	1996-12-18
1997	1997-01-13	1997-12-21
1998	1998-01-11	1998-12-31
1999	1999-01-01	1999-12-27
2000	2000-02-13	2000-12-15
2001	2001-01-11	2001-12-15
2002	2002-01-06	2002-02-25
2003	2003-02-08	2003-12-05
2004	2004-01-11	2004-12-27
2005	2005-02-09	2005-07-20
2006	2006-02-08	2006-12-10
2007	2007-01-23	2007-12-27
2008	2008-01-09	2008-11-09
2010	2010-01-01	2010-12-26
2012	2012-01-14	2012-12-22
2018	2018-03-04	2018-11-21
2023	2023-01-09	2023-12-20
2024	2024-01-03	2024-12-10

Every Fixed Threshold

Fixed thresholds at Mount Marlow
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	97	28	1950	14
25 mm (0.98 in): Days with 25 mm or more rain	93	13	1950	7
50 mm (1.97 in): Days with 50 mm or more rain	62	4	1963	2
100 mm (3.94 in): Days with 100 mm or more rain	10	1	1917	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

Data for Mount Marlow 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Mount Marlow Threshold Days by Year (ASN00038066)

Key Facts for Mount Marlow Thresholds

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

Every Fixed Threshold

Download the Data

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