Collaroy Station Threshold Days by Year

5 fixed thresholds counted per year at Collaroy Station (ASN00033012): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Collaroy Station Thresholds

Collaroy Station: days with 10 mm (0.39 in) or more of precipitation in 114 years, most in 1956 with 53.
Collaroy Station: days with 25 mm (0.98 in) or more of precipitation in 114 years, most in 1989 with 23.
Collaroy Station: days with 50 mm (1.97 in) or more of precipitation in 100 years, most in 1898 with 12.
Collaroy Station: days with 100 mm (3.94 in) or more of precipitation in 39 years, most in 1918 with 6.
5 fixed thresholds have at least one qualifying day at Collaroy Station.

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

114 years with a qualifying day

Days per year at Collaroy Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Collaroy Station
Year	Days	Decade average
1892	29	24.6
1893	25	24.6
1894	30	24.6
1895	19	24.6
1896	24	24.6
1897	20	24.6
1898	26	24.6
1899	24	24.6
1900	15	19.2
1901	18	19.2
1902	8	19.2
1904	17	19.2
1905	19	19.2
1906	31	19.2
1907	20	19.2
1908	15	19.2
1909	30	19.2
1910	33	24.1
1911	25	24.1
1912	24	24.1
1913	28	24.1
1914	18	24.1
1915	10	24.1
1916	20	24.1
1917	38	24.1
1918	30	24.1
1919	15	24.1
1920	25	19.3
1921	23	19.3
1922	22	19.3
1923	10	19.3
1924	23	19.3
1925	13	19.3
1926	12	19.3
1927	28	19.3
1928	20	19.3
1929	17	19.3
1930	20	17.7
1931	11	17.7
1932	15	17.7
1933	25	17.7
1934	15	17.7
1935	15	17.7
1936	28	17.7
1937	15	17.7
1938	18	17.7
1939	15	17.7
1940	19	20.3
1941	23	20.3
1942	26	20.3
1943	30	20.3
1944	17	20.3
1945	18	20.3
1946	16	20.3
1947	24	20.3
1948	11	20.3
1949	19	20.3
1950	35	26.7
1951	14	26.7
1952	21	26.7
1953	18	26.7
1954	26	26.7
1955	29	26.7
1956	53	26.7
1957	19	26.7
1958	31	26.7
1959	21	26.7
1960	22	16.7
1961	18	16.7
1962	11	16.7
1963	16	16.7
1964	23	16.7
1965	11	16.7
1966	12	16.7
1967	23	16.7
1968	18	16.7
1969	13	16.7
1970	20	23.6
1971	26	23.6
1972	15	23.6
1973	24	23.6
1974	35	23.6
1975	23	23.6
1976	31	23.6
1977	14	23.6
1978	21	23.6
1979	27	23.6
1980	18	20.6
1981	25	20.6
1982	12	20.6
1983	29	20.6
1984	17	20.6
1985	16	20.6
1986	16	20.6
1987	15	20.6
1988	23	20.6
1989	35	20.6
1990	21	19
1991	29	19
1992	18	19
1993	16	19
1994	12	19
1995	20	19
1996	15	19
1997	22	19
1998	25	19
1999	12	19
2000	25	13.5
2001	11	13.5
2002	7	13.5
2004	18	13.5
2005	10	13.5
2006	10	13.5
2019	16	16

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

First to last qualifying date each year at Collaroy Station
Year	First date	Last date
1892	1892-01-24	1892-12-21
1893	1893-01-30	1893-12-21
1894	1894-01-07	1894-12-11
1895	1895-01-01	1895-12-07
1896	1896-01-13	1896-11-02
1897	1897-01-08	1897-12-31
1898	1898-01-02	1898-12-22
1899	1899-01-05	1899-12-27
1900	1900-01-08	1900-12-25
1901	1901-01-06	1901-08-24
1902	1902-01-24	1902-12-18
1904	1904-01-03	1904-10-01
1905	1905-01-09	1905-11-30
1906	1906-01-02	1906-12-24
1907	1907-01-09	1907-12-29
1908	1908-01-08	1908-10-12
1909	1909-01-15	1909-12-31
1910	1910-01-01	1910-12-24
1911	1911-01-09	1911-12-27
1912	1912-01-14	1912-12-11
1913	1913-01-06	1913-12-25
1914	1914-01-21	1914-12-28
1915	1915-01-05	1915-12-30
1916	1916-02-14	1916-12-29
1917	1917-01-02	1917-12-27
1918	1918-01-05	1918-12-18
1919	1919-01-03	1919-11-23
1920	1920-01-02	1920-12-09
1921	1921-01-01	1921-12-31
1922	1922-01-01	1922-12-22
1923	1923-01-08	1923-12-29
1924	1924-01-27	1924-12-17
1925	1925-01-21	1925-12-12
1926	1926-01-01	1926-12-31
1927	1927-01-18	1927-12-24
1928	1928-01-17	1928-12-26
1929	1929-01-11	1929-12-30
1930	1930-01-01	1930-12-19
1931	1931-01-28	1931-12-23
1932	1932-01-20	1932-12-25
1933	1933-01-07	1933-12-17
1934	1934-02-01	1934-12-29
1935	1935-01-06	1935-12-21
1936	1936-01-07	1936-12-28
1937	1937-01-04	1937-12-16
1938	1938-02-16	1938-12-14
1939	1939-01-18	1939-12-28
1940	1940-01-19	1940-12-30
1941	1941-01-11	1941-12-08
1942	1942-01-18	1942-12-31
1943	1943-01-01	1943-12-30
1944	1944-01-02	1944-12-22
1945	1945-01-03	1945-11-29
1946	1946-01-08	1946-12-16
1947	1947-01-12	1947-12-25
1948	1948-01-02	1948-12-20
1949	1949-01-04	1949-12-11
1950	1950-01-17	1950-12-06
1951	1951-01-09	1951-12-21
1952	1952-01-11	1952-12-24
1953	1953-01-02	1953-12-10
1954	1954-01-04	1954-12-18
1955	1955-01-10	1955-12-19
1956	1956-01-05	1956-12-25
1957	1957-01-09	1957-12-14
1958	1958-01-01	1958-12-18
1959	1959-01-07	1959-12-27
1960	1960-01-07	1960-12-26
1961	1961-01-04	1961-12-25
1962	1962-01-28	1962-12-29
1963	1963-01-13	1963-12-18
1964	1964-01-02	1964-11-23
1965	1965-02-14	1965-12-07
1966	1966-01-25	1966-12-19
1967	1967-01-02	1967-12-25
1968	1968-01-08	1968-12-27
1969	1969-01-09	1969-12-24
1970	1970-01-19	1970-12-27
1971	1971-01-19	1971-12-27
1972	1972-01-02	1972-11-28
1973	1973-01-09	1973-12-22
1974	1974-01-01	1974-12-26
1975	1975-01-04	1975-12-30
1976	1976-01-14	1976-12-23
1977	1977-01-14	1977-12-23
1978	1978-01-17	1978-12-27
1979	1979-01-22	1979-12-29
1980	1980-01-06	1980-12-31
1981	1981-01-02	1981-12-24
1982	1982-01-05	1982-12-17
1983	1983-01-02	1983-12-02
1984	1984-01-15	1984-12-10
1985	1985-01-25	1985-12-10
1986	1986-01-03	1986-10-23
1987	1987-01-24	1987-12-31
1988	1988-02-08	1988-12-22
1989	1989-01-03	1989-12-15
1990	1990-03-03	1990-12-31
1991	1991-01-01	1991-12-21
1992	1992-01-06	1992-12-20
1993	1993-01-10	1993-12-24
1994	1994-01-22	1994-11-23
1995	1995-01-04	1995-12-12
1996	1996-01-05	1996-12-05
1997	1997-01-01	1997-12-28
1998	1998-01-10	1998-12-22
1999	1999-01-16	1999-11-10
2000	2000-01-03	2000-12-29
2001	2001-01-19	2001-12-29
2002	2002-01-05	2002-12-02
2004	2004-01-05	2004-12-26
2005	2005-01-07	2005-11-13
2006	2006-01-10	2006-12-28
2019	2019-01-09	2019-12-25

Every Fixed Threshold

Fixed thresholds at Collaroy Station
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	53	1956	16
25 mm (0.98 in): Days with 25 mm or more rain	114	23	1989	8
50 mm (1.97 in): Days with 50 mm or more rain	100	12	1898	4
100 mm (3.94 in): Days with 100 mm or more rain	39	6	1918	2
200 mm (7.87 in): Days with 200 mm or more rain	8	2	1918	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.

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Data for Collaroy Station 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).

Collaroy Station Threshold Days by Year

Key Facts for Collaroy Station Thresholds

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

Every Fixed Threshold

Download the Data

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