Hamersley Threshold Days by Year (ASN00005005)

5 fixed thresholds counted per year at Hamersley (ASN00005005): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hamersley Thresholds

Hamersley: days with 10 mm (0.39 in) or more of precipitation in 79 years, most in 2000 with 27.
Hamersley: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 1995 with 13.
Hamersley: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1942 with 5.
Hamersley: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 1945 with 2.
5 fixed thresholds have at least one qualifying day at Hamersley.

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

79 years with a qualifying day

Days per year at Hamersley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 2000.

Days with 10 mm (0.39 in) or more of precipitation per year at Hamersley
Year	Days	Decade average
1912	6	9.7
1913	7	9.7
1914	9	9.7
1915	16	9.7
1916	9	9.7
1918	13	9.7
1919	8	9.7
1920	12	9.8
1921	13	9.8
1922	6	9.8
1923	12	9.8
1924	5	9.8
1925	11	9.8
1934	15	10
1935	8	10
1936	5	10
1937	12	10
1938	10	10
1940	6	12.2
1941	13	12.2
1942	21	12.2
1943	13	12.2
1944	2	12.2
1945	10	12.2
1946	16	12.2
1947	15	12.2
1948	13	12.2
1949	13	12.2
1950	5	7.9
1951	6	7.9
1952	6	7.9
1953	5	7.9
1954	13	7.9
1955	14	7.9
1956	7	7.9
1957	7	7.9
1958	11	7.9
1959	5	7.9
1961	7	10.4
1962	12	10.4
1963	13	10.4
1964	12	10.4
1965	10	10.4
1966	13	10.4
1967	11	10.4
1968	9	10.4
1969	7	10.4
1970	9	12.3
1971	15	12.3
1972	3	12.3
1973	18	12.3
1974	13	12.3
1975	14	12.3
1976	12	12.3
1977	10	12.3
1978	17	12.3
1979	12	12.3
1980	13	12.7
1981	16	12.7
1982	18	12.7
1983	7	12.7
1987	8	12.7
1988	16	12.7
1989	11	12.7
1990	8	14.5
1991	16	14.5
1992	13	14.5
1993	12	14.5
1994	13	14.5
1995	20	14.5
1996	14	14.5
1997	16	14.5
1998	14	14.5
1999	19	14.5
2000	27	12.8
2001	11	12.8
2002	12	12.8
2003	7	12.8
2007	7	12.8

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

First to last qualifying date each year at Hamersley
Year	First date	Last date
1912	1912-01-26	1912-12-31
1913	1913-01-06	1913-07-17
1914	1914-01-04	1914-12-13
1915	1915-01-10	1915-12-17
1916	1916-02-11	1916-11-06
1918	1918-01-02	1918-08-12
1919	1919-02-13	1919-12-24
1920	1920-03-01	1920-11-14
1921	1921-02-03	1921-11-22
1922	1922-02-07	1922-05-29
1923	1923-01-03	1923-12-27
1924	1924-01-12	1924-04-07
1925	1925-01-07	1925-12-29
1934	1934-01-05	1934-11-16
1935	1935-01-15	1935-07-27
1936	1936-01-09	1936-12-31
1937	1937-01-05	1937-12-23
1938	1938-01-10	1938-11-30
1940	1940-01-19	1940-12-24
1941	1941-01-01	1941-12-15
1942	1942-01-05	1942-12-24
1943	1943-01-16	1943-12-30
1944	1944-03-12	1944-04-06
1945	1945-01-01	1945-12-31
1946	1946-01-06	1946-07-11
1947	1947-01-20	1947-12-30
1948	1948-01-27	1948-12-21
1949	1949-01-10	1949-12-20
1950	1950-01-07	1950-12-30
1951	1951-02-16	1951-06-08
1952	1952-01-22	1952-07-11
1953	1953-01-05	1953-12-10
1954	1954-01-06	1954-12-30
1955	1955-01-01	1955-11-17
1956	1956-02-13	1956-09-01
1957	1957-01-31	1957-12-26
1958	1958-01-21	1958-07-14
1959	1959-03-02	1959-07-27
1961	1961-01-25	1961-05-17
1962	1962-01-08	1962-12-29
1963	1963-01-06	1963-12-26
1964	1964-01-06	1964-12-30
1965	1965-01-10	1965-12-25
1966	1966-01-01	1966-12-12
1967	1967-01-02	1967-12-25
1968	1968-02-01	1968-08-23
1969	1969-02-03	1969-10-18
1970	1970-01-27	1970-09-10
1971	1971-01-26	1971-11-15
1972	1972-02-10	1972-12-19
1973	1973-01-05	1973-12-29
1974	1974-01-01	1974-12-25
1975	1975-01-27	1975-12-18
1976	1976-01-09	1976-12-29
1977	1977-01-05	1977-12-15
1978	1978-01-01	1978-12-30
1979	1979-02-12	1979-12-25
1980	1980-01-11	1980-12-26
1981	1981-01-09	1981-12-13
1982	1982-01-03	1982-12-27
1983	1983-01-03	1983-04-08
1987	1987-01-13	1987-12-21
1988	1988-01-27	1988-12-30
1989	1989-01-05	1989-06-14
1990	1990-01-03	1990-08-04
1991	1991-01-05	1991-07-19
1992	1992-01-06	1992-08-24
1993	1993-01-10	1993-12-14
1994	1994-01-12	1994-12-23
1995	1995-01-06	1995-12-11
1996	1996-01-14	1996-12-26
1997	1997-01-01	1997-08-29
1998	1998-02-05	1998-12-01
1999	1999-01-14	1999-12-25
2000	2000-01-07	2000-12-15
2001	2001-01-19	2001-06-23
2002	2002-02-02	2002-12-24
2003	2003-01-24	2003-06-23
2007	2007-02-17	2007-07-03

Every Fixed Threshold

Fixed thresholds at Hamersley
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	79	27	2000	7
25 mm (0.98 in): Days with 25 mm or more rain	76	13	1995	2
50 mm (1.97 in): Days with 50 mm or more rain	52	5	1942	1
100 mm (3.94 in): Days with 100 mm or more rain	15	2	1945	2
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

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Data for Hamersley 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).

Hamersley Threshold Days by Year (ASN00005005)

Key Facts for Hamersley Thresholds

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

Every Fixed Threshold

Download the Data

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