Port Lincoln (Big Swamp) Threshold Days by Year (ASN00018017)

3 fixed thresholds counted per year at Port Lincoln (Big Swamp) (ASN00018017): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Lincoln (Big Swamp) Thresholds

Port Lincoln (Big Swamp): days with 10 mm (0.39 in) or more of precipitation in 110 years, most in 1917 with 26.
Port Lincoln (Big Swamp): days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 1916 with 6.
Port Lincoln (Big Swamp): days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1968 with 2.
3 fixed thresholds have at least one qualifying day at Port Lincoln (Big Swamp).

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

110 years with a qualifying day

Days per year at Port Lincoln (Big Swamp) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Port Lincoln (Big Swamp)
Year	Days	Decade average
1899	13	13
1900	18	16.6
1901	17	16.6
1902	15	16.6
1903	19	16.6
1904	12	16.6
1905	19	16.6
1906	19	16.6
1907	15	16.6
1908	17	16.6
1909	15	16.6
1910	23	16.5
1911	16	16.5
1912	17	16.5
1913	11	16.5
1914	9	16.5
1915	15	16.5
1916	25	16.5
1917	26	16.5
1918	13	16.5
1919	10	16.5
1920	25	17.7
1921	15	17.7
1922	15	17.7
1923	26	17.7
1924	15	17.7
1925	18	17.7
1926	11	17.7
1927	23	17.7
1928	15	17.7
1929	14	17.7
1930	18	16.4
1931	11	16.4
1932	25	16.4
1933	14	16.4
1934	13	16.4
1935	21	16.4
1936	11	16.4
1937	18	16.4
1938	16	16.4
1939	17	16.4
1940	20	13.8
1941	10	13.8
1942	19	13.8
1943	15	13.8
1944	10	13.8
1945	12	13.8
1946	18	13.8
1947	11	13.8
1948	13	13.8
1949	10	13.8
1950	10	11.8
1951	17	11.8
1952	14	11.8
1953	9	11.8
1954	15	11.8
1955	11	11.8
1956	15	11.8
1957	8	11.8
1958	14	11.8
1959	5	11.8
1960	18	15.2
1961	11	15.2
1963	16	15.2
1964	19	15.2
1965	8	15.2
1966	21	15.2
1967	8	15.2
1968	24	15.2
1969	12	15.2
1970	10	14.7
1971	19	14.7
1972	13	14.7
1973	9	14.7
1974	14	14.7
1975	18	14.7
1976	14	14.7
1977	10	14.7
1978	23	14.7
1979	17	14.7
1980	16	15.5
1981	18	15.5
1982	10	15.5
1983	22	15.5
1984	16	15.5
1985	12	15.5
1986	17	15.5
1987	12	15.5
1988	17	15.5
1989	15	15.5
1990	19	13.4
1991	7	13.4
1992	21	13.4
1993	12	13.4
1994	9	13.4
1998	13	13.4
1999	13	13.4
2000	23	16.5
2001	16	16.5
2002	12	16.5
2003	23	16.5
2004	16	16.5
2005	18	16.5
2006	13	16.5
2007	15	16.5
2008	10	16.5
2009	19	16.5
2019	13	13
2023	12	11
2026	10	11

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

First to last qualifying date each year at Port Lincoln (Big Swamp)
Year	First date	Last date
1899	1899-03-25	1899-12-25
1900	1900-03-14	1900-11-16
1901	1901-02-25	1901-11-12
1902	1902-02-23	1902-12-16
1903	1903-01-20	1903-10-11
1904	1904-02-23	1904-09-11
1905	1905-04-05	1905-10-28
1906	1906-01-07	1906-11-18
1907	1907-03-18	1907-10-30
1908	1908-04-15	1908-10-15
1909	1909-02-23	1909-12-22
1910	1910-05-12	1910-12-23
1911	1911-03-18	1911-11-21
1912	1912-02-24	1912-12-06
1913	1913-03-13	1913-12-23
1914	1914-03-12	1914-12-14
1915	1915-04-07	1915-10-15
1916	1916-04-21	1916-11-11
1917	1917-02-13	1917-12-11
1918	1918-05-10	1918-12-01
1919	1919-02-18	1919-10-07
1920	1920-04-10	1920-12-26
1921	1921-02-24	1921-11-25
1922	1922-01-05	1922-12-25
1923	1923-05-08	1923-12-15
1924	1924-02-18	1924-11-07
1925	1925-04-02	1925-11-18
1926	1926-04-24	1926-12-05
1927	1927-02-03	1927-12-02
1928	1928-02-12	1928-10-05
1929	1929-06-04	1929-12-28
1930	1930-02-21	1930-12-04
1931	1931-04-29	1931-09-30
1932	1932-02-05	1932-10-29
1933	1933-05-01	1933-11-18
1934	1934-02-16	1934-11-08
1935	1935-03-20	1935-12-24
1936	1936-04-07	1936-12-03
1937	1937-05-31	1937-12-11
1938	1938-02-19	1938-12-27
1939	1939-01-16	1939-11-04
1940	1940-01-05	1940-11-02
1941	1941-01-24	1941-09-20
1942	1942-02-07	1942-11-21
1943	1943-02-11	1943-12-16
1944	1944-04-08	1944-12-21
1945	1945-04-05	1945-12-16
1946	1946-01-17	1946-12-27
1947	1947-06-04	1947-11-08
1948	1948-04-11	1948-12-17
1949	1949-05-18	1949-11-20
1950	1950-05-26	1950-10-24
1951	1951-02-22	1951-09-28
1952	1952-04-23	1952-09-19
1953	1953-02-04	1953-11-08
1954	1954-01-27	1954-12-11
1955	1955-02-15	1955-10-11
1956	1956-03-03	1956-09-19
1957	1957-06-29	1957-08-21
1958	1958-03-06	1958-10-16
1959	1959-02-13	1959-09-18
1960	1960-01-17	1960-11-12
1961	1961-04-04	1961-10-20
1963	1963-01-13	1963-09-12
1964	1964-02-01	1964-11-18
1965	1965-05-11	1965-08-16
1966	1966-02-16	1966-12-03
1967	1967-05-26	1967-08-13
1968	1968-01-19	1968-11-05
1969	1969-02-09	1969-11-04
1970	1970-01-01	1970-11-14
1971	1971-03-31	1971-12-10
1972	1972-01-06	1972-12-26
1973	1973-03-18	1973-12-02
1974	1974-01-30	1974-10-23
1975	1975-03-20	1975-12-14
1976	1976-02-08	1976-11-03
1977	1977-01-14	1977-11-27
1978	1978-04-25	1978-12-04
1979	1979-02-24	1979-11-15
1980	1980-04-18	1980-11-05
1981	1981-02-28	1981-10-03
1982	1982-03-22	1982-08-11
1983	1983-03-01	1983-12-07
1984	1984-03-26	1984-12-30
1985	1985-04-14	1985-11-24
1986	1986-04-15	1986-12-07
1987	1987-04-28	1987-12-01
1988	1988-01-14	1988-11-21
1989	1989-04-30	1989-09-11
1990	1990-04-13	1990-12-07
1991	1991-06-02	1991-09-17
1992	1992-03-01	1992-12-04
1993	1993-05-06	1993-11-02
1994	1994-05-31	1994-10-07
1998	1998-04-12	1998-12-20
1999	1999-01-08	1999-12-03
2000	2000-02-20	2000-10-19
2001	2001-02-08	2001-12-06
2002	2002-03-26	2002-12-31
2003	2003-01-27	2003-12-20
2004	2004-01-04	2004-11-04
2005	2005-03-05	2005-12-12
2006	2006-02-09	2006-12-22
2007	2007-01-20	2007-12-21
2008	2008-04-27	2008-11-25
2009	2009-03-03	2009-09-26
2019	2019-05-01	2019-09-23
2023	2023-01-18	2023-12-11
2026	2026-04-06	2026-06-16

Every Fixed Threshold

Fixed thresholds at Port Lincoln (Big Swamp)
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	110	26	1917	10
25 mm (0.98 in): Days with 25 mm or more rain	83	6	1916	2
50 mm (1.97 in): Days with 50 mm or more rain	12	2	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Port Lincoln (Big Swamp) 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Port Lincoln (Big Swamp) Threshold Days by Year (ASN00018017)

Key Facts for Port Lincoln (Big Swamp) Thresholds

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

Every Fixed Threshold

Download the Data

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