Port Lincoln (Big Swamp) Weather Records (ASN00018017)

Record envelope, standing records and threshold days for Port Lincoln (Big Swamp) (ASN00018017), Australia, with 130 years of record.

Key Facts for Port Lincoln (Big Swamp)

Port Lincoln (Big Swamp) (ASN00018017) is a weather station in Australia at -34.63 latitude and 135.70 longitude, 110 m (361 ft) above sea level.
The station reports from 1897 to 2026, 130 years of record.
0 records set at Port Lincoln (Big Swamp) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Port Lincoln (Big Swamp) set a daily record precipitation of 25.6 mm (1.0 in) on 13 June 2026.

About the Station

Location: Australia, -34.63 latitude, 135.70 longitude.
Elevation: 110 m (361 ft).
Period of record: 1897 to 2026, 130 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Port Lincoln (Big Swamp). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Port Lincoln (Big Swamp), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Port Lincoln (Big Swamp) still stand.

Wettest Day of Each Month

Mar: 88.9 mm (3.5 in)

The wettest day on record for each calendar month at Port Lincoln (Big Swamp). The most was 88.9 mm (3.5 in) on 9 March 1912.

Record daily precipitation for each month at Port Lincoln (Big Swamp)
Month	Record daily precipitation (mm)	Date
Jan	33.5 mm (1.3 in)	11 January 1972
Feb	82.6 mm (3.3 in)	20 February 1938
Mar	88.9 mm (3.5 in)	9 March 1912
Apr	64.3 mm (2.5 in)	29 April 1968
May	44.7 mm (1.8 in)	15 May 1898
Jun	74.4 mm (2.9 in)	16 June 1955
Jul	76.2 mm (3.0 in)	5 July 1910
Aug	35.2 mm (1.4 in)	5 August 2018
Sep	46.2 mm (1.8 in)	3 September 1984
Oct	36.0 mm (1.4 in)	5 October 2020
Nov	69.9 mm (2.8 in)	18 November 1906
Dec	45.8 mm (1.8 in)	6 December 1990

Latest Records

Latest records at Port Lincoln (Big Swamp)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 June 2026	Port Lincoln (Big Swamp), AU	daily rain	25.6 mm (1.0 in)	6.6 mm (0.26 in)	28 years	27 of 100 (Routine)
16 May 2026	Port Lincoln (Big Swamp), AU	daily rain	25.0 mm (1.0 in)	9.0 mm (0.35 in)	127 years	55 of 100 (Notable)
8 June 2023	Port Lincoln (Big Swamp), AU	daily rain	25.8 mm (1.0 in)	0.8 mm (0.03 in)	28 years	19 of 100 (Routine)
29 January 2023	Port Lincoln (Big Swamp), AU	daily rain	7.0 mm (0.28 in)	1.8 mm (0.07 in)	48 years	20 of 100 (Routine)
18 January 2023	Port Lincoln (Big Swamp), AU	daily rain	11.0 mm (0.4 in)	3.4 mm (0.13 in)	123 years	20 of 100 (Routine)
8 June 2021	Port Lincoln (Big Swamp), AU	daily rain (Tie)	25.0 mm (1.0 in)	tie	26 years	4 of 100 (Routine)
26 January 2021	Port Lincoln (Big Swamp), AU	daily rain	7.8 mm (0.31 in)	1.4 mm (0.06 in)	84 years	20 of 100 (Routine)
8 October 2020	Port Lincoln (Big Swamp), AU	daily rain	35.6 mm (1.4 in)	7.2 mm (0.28 in)	28 years	32 of 100 (Routine)
5 October 2020	Port Lincoln (Big Swamp), AU	monthly rain	36.0 mm (1.4 in)	1.0 mm (0.04 in)	19 years	26 of 100 (Routine)
9 May 2019	Port Lincoln (Big Swamp), AU	daily rain	30.8 mm (1.2 in)	3.6 mm (0.14 in)	74 years	38 of 100 (Notable)
19 December 2018	Port Lincoln (Big Swamp), AU	daily rain	5.6 mm (0.22 in)	0.6 mm (0.02 in)	11 years	14 of 100 (Routine)
15 October 2018	Port Lincoln (Big Swamp), AU	daily rain	32.0 mm (1.3 in)	13.7 mm (0.5 in)	77 years	60 of 100 (Major)
5 August 2018	Port Lincoln (Big Swamp), AU	monthly rain	35.2 mm (1.4 in)	0.2 mm (0.01 in)	33 years	30 of 100 (Routine)
3 August 2018	Port Lincoln (Big Swamp), AU	daily rain	26.5 mm (1.0 in)	1.6 mm (0.06 in)	92 years	40 of 100 (Notable)
3 May 2018	Port Lincoln (Big Swamp), AU	daily rain	24.0 mm (0.9 in)	7.0 mm (0.28 in)	20 years	20 of 100 (Routine)
23 November 2017	Port Lincoln (Big Swamp), AU	daily rain	51.2 mm (2.0 in)	34.2 mm (1.3 in)	16 years	54 of 100 (Notable)
26 December 2016	Port Lincoln (Big Swamp), AU	daily rain	17.0 mm (0.7 in)	4.3 mm (0.17 in)	96 years	20 of 100 (Routine)
3 October 2016	Port Lincoln (Big Swamp), AU	daily rain (Tie)	16.0 mm (0.6 in)	tie	14 years	3 of 100 (Routine)
2 February 2016	Port Lincoln (Big Swamp), AU	daily rain	68.6 mm (2.7 in)	60.0 mm (2.4 in)	56 years	66 of 100 (Major)
24 May 2012	Port Lincoln (Big Swamp), AU	daily rain	25.0 mm (1.0 in)	7.2 mm (0.28 in)	60 years	40 of 100 (Notable)

Extremes by Year

1897 to 2026

Yearly extremes at Port Lincoln (Big Swamp): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	88.9 mm (3.5 in)	1912	30.9 mm (1.2 in)	128
Wettest five days (Rx5day)	137.0 mm (5.4 in)	1910	56.1 mm (2.2 in)	128
Longest dry spell (CDD)	75 days	1916	37 days	128

Wettest day (Rx1day)

The wettest day of the year at Port Lincoln (Big Swamp), 1897 to 2026. The record is 88.9 mm (3.5 in) in 1912, marked on the chart; the median year is 30.9 mm (1.2 in).

Wettest day (Rx1day) at Port Lincoln (Big Swamp) by year
Year	Wettest day (Rx1day)
1897	17.3 mm (0.7 in)
1898	44.7 mm (1.8 in)
1899	27.4 mm (1.1 in)
1900	19.1 mm (0.8 in)
1901	37.1 mm (1.5 in)
1902	19.1 mm (0.8 in)
1903	21.8 mm (0.9 in)
1904	31.8 mm (1.3 in)
1905	26.7 mm (1.1 in)
1906	69.9 mm (2.8 in)
1907	48.3 mm (1.9 in)
1908	50.8 mm (2.0 in)
1909	25.4 mm (1.0 in)
1910	76.2 mm (3.0 in)
1911	31.0 mm (1.2 in)
1912	88.9 mm (3.5 in)
1913	22.9 mm (0.9 in)
1914	22.9 mm (0.9 in)
1915	28.7 mm (1.1 in)
1916	57.2 mm (2.3 in)
1917	33.8 mm (1.3 in)
1918	27.9 mm (1.1 in)
1919	24.6 mm (1.0 in)
1920	34.3 mm (1.4 in)
1921	64.8 mm (2.6 in)
1922	27.4 mm (1.1 in)
1923	35.6 mm (1.4 in)
1924	21.6 mm (0.9 in)
1925	22.9 mm (0.9 in)
1926	38.9 mm (1.5 in)
1927	36.8 mm (1.4 in)
1928	33.0 mm (1.3 in)
1929	28.4 mm (1.1 in)
1930	22.4 mm (0.9 in)
1931	23.9 mm (0.9 in)
1932	54.6 mm (2.1 in)
1933	33.0 mm (1.3 in)
1934	42.2 mm (1.7 in)
1935	41.9 mm (1.6 in)
1936	25.1 mm (1.0 in)
1937	39.4 mm (1.6 in)
1938	82.6 mm (3.3 in)
1939	33.0 mm (1.3 in)
1940	34.5 mm (1.4 in)
1941	22.9 mm (0.9 in)
1942	28.4 mm (1.1 in)
1943	30.0 mm (1.2 in)
1944	40.1 mm (1.6 in)
1945	18.3 mm (0.7 in)
1946	33.8 mm (1.3 in)
1947	34.0 mm (1.3 in)
1948	27.4 mm (1.1 in)
1949	32.8 mm (1.3 in)
1950	26.4 mm (1.0 in)
1951	24.6 mm (1.0 in)
1952	20.8 mm (0.8 in)
1953	25.4 mm (1.0 in)
1954	36.1 mm (1.4 in)
1955	74.4 mm (2.9 in)
1956	28.2 mm (1.1 in)
1957	42.2 mm (1.7 in)
1958	22.4 mm (0.9 in)
1959	40.4 mm (1.6 in)
1960	26.9 mm (1.1 in)
1961	28.4 mm (1.1 in)
1962	20.8 mm (0.8 in)
1963	36.1 mm (1.4 in)
1964	34.0 mm (1.3 in)
1965	19.6 mm (0.8 in)
1966	39.6 mm (1.6 in)
1967	24.1 mm (0.9 in)
1968	64.3 mm (2.5 in)
1969	39.9 mm (1.6 in)
1970	17.5 mm (0.7 in)
1971	37.3 mm (1.5 in)
1972	33.5 mm (1.3 in)
1973	40.4 mm (1.6 in)
1974	28.4 mm (1.1 in)
1975	30.8 mm (1.2 in)
1976	60.0 mm (2.4 in)
1977	20.0 mm (0.8 in)
1978	31.4 mm (1.2 in)
1979	26.4 mm (1.0 in)
1980	28.0 mm (1.1 in)
1981	31.8 mm (1.3 in)
1982	29.6 mm (1.2 in)
1983	45.0 mm (1.8 in)
1984	46.2 mm (1.8 in)
1985	29.6 mm (1.2 in)
1986	32.2 mm (1.3 in)
1987	29.2 mm (1.1 in)
1988	21.4 mm (0.8 in)
1989	30.8 mm (1.2 in)
1990	45.8 mm (1.8 in)
1991	17.0 mm (0.7 in)
1992	31.6 mm (1.2 in)
1993	23.0 mm (0.9 in)
1994	39.0 mm (1.5 in)
1995	33.0 mm (1.3 in)
1996	22.0 mm (0.9 in)
1997	23.0 mm (0.9 in)
1998	24.2 mm (1.0 in)
1999	34.0 mm (1.3 in)
2000	35.0 mm (1.4 in)
2001	28.0 mm (1.1 in)
2002	24.0 mm (0.9 in)
2003	36.0 mm (1.4 in)
2004	18.6 mm (0.7 in)
2005	20.0 mm (0.8 in)
2006	60.0 mm (2.4 in)
2007	38.0 mm (1.5 in)
2008	23.0 mm (0.9 in)
2009	29.0 mm (1.1 in)
2010	32.0 mm (1.3 in)
2011	65.4 mm (2.6 in)
2012	25.0 mm (1.0 in)
2013	20.0 mm (0.8 in)
2014	5.0 mm (0.20 in)
2015	15.2 mm (0.6 in)
2016	68.6 mm (2.7 in)
2017	51.2 mm (2.0 in)
2018	35.2 mm (1.4 in)
2019	30.8 mm (1.2 in)
2020	36.0 mm (1.4 in)
2021	26.0 mm (1.0 in)
2023	33.6 mm (1.3 in)
2024	31.8 mm (1.3 in)
2026	25.6 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Port Lincoln (Big Swamp), 1897 to 2026. The record is 137.0 mm (5.4 in) in 1910, marked on the chart; the median year is 56.1 mm (2.2 in).

Wettest five days (Rx5day) at Port Lincoln (Big Swamp) by year
Year	Wettest five days (Rx5day)
1897	62.7 mm (2.5 in)
1898	71.8 mm (2.8 in)
1899	48.3 mm (1.9 in)
1900	55.9 mm (2.2 in)
1901	64.6 mm (2.5 in)
1902	45.0 mm (1.8 in)
1903	48.6 mm (1.9 in)
1904	51.1 mm (2.0 in)
1905	54.6 mm (2.1 in)
1906	83.1 mm (3.3 in)
1907	79.8 mm (3.1 in)
1908	87.1 mm (3.4 in)
1909	56.4 mm (2.2 in)
1910	137.0 mm (5.4 in)
1911	67.6 mm (2.7 in)
1912	91.4 mm (3.6 in)
1913	47.1 mm (1.9 in)
1914	33.0 mm (1.3 in)
1915	56.6 mm (2.2 in)
1916	101.4 mm (4.0 in)
1917	62.5 mm (2.5 in)
1918	52.2 mm (2.1 in)
1919	42.4 mm (1.7 in)
1920	70.8 mm (2.8 in)
1921	64.8 mm (2.6 in)
1922	54.1 mm (2.1 in)
1923	77.5 mm (3.1 in)
1924	37.9 mm (1.5 in)
1925	63.0 mm (2.5 in)
1926	44.7 mm (1.8 in)
1927	78.7 mm (3.1 in)
1928	67.1 mm (2.6 in)
1929	54.4 mm (2.1 in)
1930	60.9 mm (2.4 in)
1931	60.5 mm (2.4 in)
1932	100.8 mm (4.0 in)
1933	48.2 mm (1.9 in)
1934	43.5 mm (1.7 in)
1935	71.4 mm (2.8 in)
1936	44.9 mm (1.8 in)
1937	59.8 mm (2.4 in)
1938	103.4 mm (4.1 in)
1939	68.8 mm (2.7 in)
1940	66.3 mm (2.6 in)
1941	43.8 mm (1.7 in)
1942	60.7 mm (2.4 in)
1943	45.7 mm (1.8 in)
1944	54.2 mm (2.1 in)
1945	42.4 mm (1.7 in)
1946	60.3 mm (2.4 in)
1947	50.6 mm (2.0 in)
1948	47.0 mm (1.9 in)
1949	56.4 mm (2.2 in)
1950	45.0 mm (1.8 in)
1951	71.9 mm (2.8 in)
1952	43.7 mm (1.7 in)
1953	48.0 mm (1.9 in)
1954	51.1 mm (2.0 in)
1955	94.0 mm (3.7 in)
1956	45.8 mm (1.8 in)
1957	55.2 mm (2.2 in)
1958	53.9 mm (2.1 in)
1959	56.3 mm (2.2 in)
1960	45.9 mm (1.8 in)
1961	61.9 mm (2.4 in)
1962	38.9 mm (1.5 in)
1963	69.1 mm (2.7 in)
1964	73.6 mm (2.9 in)
1965	38.7 mm (1.5 in)
1966	66.3 mm (2.6 in)
1967	38.4 mm (1.5 in)
1968	132.2 mm (5.2 in)
1969	50.0 mm (2.0 in)
1970	52.8 mm (2.1 in)
1971	84.8 mm (3.3 in)
1972	43.5 mm (1.7 in)
1973	54.1 mm (2.1 in)
1974	37.8 mm (1.5 in)
1975	44.2 mm (1.7 in)
1976	76.2 mm (3.0 in)
1977	41.4 mm (1.6 in)
1978	75.6 mm (3.0 in)
1979	61.4 mm (2.4 in)
1980	42.6 mm (1.7 in)
1981	77.2 mm (3.0 in)
1982	48.8 mm (1.9 in)
1983	71.2 mm (2.8 in)
1984	66.8 mm (2.6 in)
1985	50.0 mm (2.0 in)
1986	63.2 mm (2.5 in)
1987	46.6 mm (1.8 in)
1988	39.6 mm (1.6 in)
1989	76.0 mm (3.0 in)
1990	71.4 mm (2.8 in)
1991	42.0 mm (1.7 in)
1992	65.6 mm (2.6 in)
1993	40.2 mm (1.6 in)
1994	57.4 mm (2.3 in)
1995	49.6 mm (2.0 in)
1996	50.8 mm (2.0 in)
1997	43.8 mm (1.7 in)
1998	41.8 mm (1.6 in)
1999	49.8 mm (2.0 in)
2000	61.7 mm (2.4 in)
2001	60.2 mm (2.4 in)
2002	39.5 mm (1.6 in)
2003	61.0 mm (2.4 in)
2004	44.9 mm (1.8 in)
2005	67.0 mm (2.6 in)
2006	61.0 mm (2.4 in)
2007	57.8 mm (2.3 in)
2008	35.0 mm (1.4 in)
2009	61.4 mm (2.4 in)
2010	72.6 mm (2.9 in)
2011	95.8 mm (3.8 in)
2012	43.7 mm (1.7 in)
2013	48.4 mm (1.9 in)
2014	8.4 mm (0.33 in)
2015	28.2 mm (1.1 in)
2016	69.1 mm (2.7 in)
2017	51.2 mm (2.0 in)
2018	94.1 mm (3.7 in)
2019	60.4 mm (2.4 in)
2020	72.6 mm (2.9 in)
2021	36.8 mm (1.4 in)
2023	58.0 mm (2.3 in)
2024	42.3 mm (1.7 in)
2026	52.4 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Port Lincoln (Big Swamp), 1897 to 2026. The record is 75 days in 1916, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Port Lincoln (Big Swamp) by year
Year	Longest dry spell (CDD)
1897	45 days
1898	36 days
1899	29 days
1900	52 days
1901	33 days
1902	30 days
1903	24 days
1904	57 days
1905	49 days
1906	39 days
1907	56 days
1908	47 days
1909	24 days
1910	47 days
1911	35 days
1912	34 days
1913	41 days
1914	59 days
1915	41 days
1916	75 days
1917	21 days
1918	47 days
1919	50 days
1920	50 days
1921	54 days
1922	72 days
1923	41 days
1924	39 days
1925	41 days
1926	54 days
1927	37 days
1928	57 days
1929	27 days
1930	50 days
1931	42 days
1932	26 days
1933	57 days
1934	40 days
1935	65 days
1936	48 days
1937	35 days
1938	56 days
1939	31 days
1940	53 days
1941	26 days
1942	44 days
1943	41 days
1944	36 days
1945	42 days
1946	27 days
1947	37 days
1948	38 days
1949	40 days
1950	51 days
1951	45 days
1952	32 days
1953	43 days
1954	44 days
1955	33 days
1956	25 days
1957	67 days
1958	50 days
1959	43 days
1960	38 days
1961	33 days
1962	29 days
1963	42 days
1964	22 days
1965	66 days
1966	26 days
1967	66 days
1968	36 days
1969	35 days
1970	36 days
1971	31 days
1972	50 days
1973	28 days
1974	52 days
1975	31 days
1976	16 days
1977	23 days
1978	57 days
1979	21 days
1980	44 days
1981	26 days
1982	30 days
1983	20 days
1984	33 days
1985	50 days
1986	72 days
1987	28 days
1988	27 days
1989	29 days
1990	32 days
1991	52 days
1992	24 days
1993	29 days
1994	41 days
1995	26 days
1996	42 days
1997	38 days
1998	26 days
1999	29 days
2000	33 days
2001	30 days
2002	57 days
2003	25 days
2004	38 days
2005	32 days
2006	37 days
2007	60 days
2008	33 days
2009	43 days
2010	12 days
2011	13 days
2012	20 days
2013	18 days
2014	18 days
2015	11 days
2016	25 days
2017	15 days
2018	19 days
2019	42 days
2020	17 days
2021	29 days
2023	31 days
2024	32 days
2026	42 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

109 years, 1899 to 2023

A day with at least 30.6 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 89.4 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Port Lincoln (Big Swamp): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	30.6 mm (1.2 in)
5 years	41.6 mm (1.6 in)
10 years	50.5 mm (2.0 in)
25 years	63.9 mm (2.5 in)
50 years	75.8 mm (3.0 in)
100 years	89.4 mm (3.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 109 years of values from 1899 to 2023.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 88.9 mm (3.5 in) in 1912; 82.6 mm (3.3 in) in 1938; 76.2 mm (3.0 in) in 1910.

Download the Data

Data for Port Lincoln (Big Swamp) standing records by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a