Portarlington Weather Records (ASN00087053)

Record envelope, standing records and threshold days for Portarlington (ASN00087053), Australia, with 134 years of record.

Key Facts for Portarlington

Portarlington (ASN00087053) is a weather station in Australia at -38.12 latitude and 144.64 longitude, 77 m (253 ft) above sea level.
The station reports from 1884 to 2017, 134 years of record.
0 records set at Portarlington still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Portarlington set a daily record precipitation of 27.2 mm (1.1 in) on 20 January 2017.

About the Station

Location: Australia, -38.12 latitude, 144.64 longitude.
Elevation: 77 m (253 ft).
Period of record: 1884 to 2017, 134 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 Portarlington. 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 Portarlington, 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 Portarlington still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Portarlington between 18 February 1919 and 5 February 1973. Each dot is a new record.

When Portarlington set new all-time records
Date	Kind	Detail
1919-02-18	Record daily precipitation	Record daily precipitation 86.4 mm (3.4 in)
1952-07-14	Record daily precipitation	Record daily precipitation 91.4 mm (3.6 in)
1973-02-05	Record daily precipitation	Record daily precipitation 107.2 mm (4.2 in)

Wettest Day of Each Month

Feb: 107.2 mm (4.2 in)

The wettest day on record for each calendar month at Portarlington. The most was 107.2 mm (4.2 in) on 5 February 1973.

Record daily precipitation for each month at Portarlington
Month	Record daily precipitation (mm)	Date
Jan	62.5 mm (2.5 in)	3 January 1921
Feb	107.2 mm (4.2 in)	5 February 1973
Mar	75.7 mm (3.0 in)	28 March 1924
Apr	73.2 mm (2.9 in)	23 April 1960
May	62.5 mm (2.5 in)	11 May 1896
Jun	39.0 mm (1.5 in)	1 June 1977
Jul	91.4 mm (3.6 in)	14 July 1952
Aug	57.2 mm (2.3 in)	7 August 1899
Sep	57.2 mm (2.3 in)	18 September 1895
Oct	53.8 mm (2.1 in)	31 October 2010
Nov	98.6 mm (3.9 in)	27 November 2011
Dec	84.0 mm (3.3 in)	2 December 1987

Latest Records

Latest records at Portarlington
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 January 2017	Portarlington, AU	daily rain	27.2 mm (1.1 in)	1.8 mm (0.07 in)	75 years	34 of 100 (Routine)
14 September 2016	Portarlington, AU	daily rain	26.0 mm (1.0 in)	11.8 mm (0.5 in)	50 years	46 of 100 (Notable)
29 August 2016	Portarlington, AU	daily rain	20.0 mm (0.8 in)	2.2 mm (0.09 in)	82 years	20 of 100 (Routine)
6 July 2016	Portarlington, AU	daily rain	24.1 mm (0.9 in)	5.0 mm (0.20 in)	130 years	20 of 100 (Routine)
17 June 2016	Portarlington, AU	daily rain	12.0 mm (0.5 in)	2.9 mm (0.11 in)	64 years	20 of 100 (Routine)
10 May 2014	Portarlington, AU	daily rain	20.4 mm (0.8 in)	7.7 mm (0.30 in)	84 years	20 of 100 (Routine)
13 June 2013	Portarlington, AU	daily rain (Tie)	20.8 mm (0.8 in)	tie	62 years	7 of 100 (Routine)
7 June 2013	Portarlington, AU	daily rain	15.8 mm (0.6 in)	2.1 mm (0.08 in)	50 years	20 of 100 (Routine)
18 August 2012	Portarlington, AU	daily rain	20.4 mm (0.8 in)	8.7 mm (0.34 in)	66 years	20 of 100 (Routine)
2 July 2012	Portarlington, AU	daily rain	29.4 mm (1.2 in)	10.1 mm (0.4 in)	89 years	54 of 100 (Notable)
22 June 2012	Portarlington, AU	daily rain	24.4 mm (1.0 in)	1.3 mm (0.05 in)	108 years	20 of 100 (Routine)
5 June 2012	Portarlington, AU	daily rain	23.8 mm (0.9 in)	4.5 mm (0.18 in)	126 years	20 of 100 (Routine)
26 May 2012	Portarlington, AU	daily rain	24.6 mm (1.0 in)	2.6 mm (0.10 in)	31 years	20 of 100 (Routine)
25 May 2012	Portarlington, AU	daily rain	24.6 mm (1.0 in)	5.0 mm (0.20 in)	17 years	20 of 100 (Routine)
25 April 2012	Portarlington, AU	daily rain	35.8 mm (1.4 in)	7.6 mm (0.30 in)	118 years	49 of 100 (Notable)
11 December 2011	Portarlington, AU	daily rain	29.8 mm (1.2 in)	5.7 mm (0.22 in)	88 years	43 of 100 (Notable)
27 November 2011	Portarlington, AU	monthly rain	98.6 mm (3.9 in)	47.1 mm (1.9 in)	4 years	61 of 100 (Major)
29 October 2011	Portarlington, AU	daily rain	18.8 mm (0.7 in)	3.1 mm (0.12 in)	37 years	20 of 100 (Routine)
14 January 2011	Portarlington, AU	daily rain	36.8 mm (1.4 in)	13.0 mm (0.5 in)	36 years	37 of 100 (Notable)
12 January 2011	Portarlington, AU	daily rain	28.0 mm (1.1 in)	4.1 mm (0.16 in)	96 years	44 of 100 (Notable)

Extremes by Year

1884 to 2017

Yearly extremes at Portarlington: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	107.2 mm (4.2 in)	1973	35.3 mm (1.4 in)	132
Wettest five days (Rx5day)	208.0 mm (8.2 in)	1973	54.9 mm (2.2 in)	132
Longest dry spell (CDD)	49 days	1926	23 days	132

Wettest day (Rx1day)

The wettest day of the year at Portarlington, 1884 to 2017. The record is 107.2 mm (4.2 in) in 1973, marked on the chart; the median year is 35.3 mm (1.4 in).

Wettest day (Rx1day) at Portarlington by year
Year	Wettest day (Rx1day)
1884	25.7 mm (1.0 in)
1885	31.8 mm (1.3 in)
1886	50.8 mm (2.0 in)
1887	31.5 mm (1.2 in)
1888	34.0 mm (1.3 in)
1889	38.4 mm (1.5 in)
1890	26.7 mm (1.1 in)
1891	53.3 mm (2.1 in)
1892	48.0 mm (1.9 in)
1893	33.3 mm (1.3 in)
1894	31.2 mm (1.2 in)
1895	57.2 mm (2.3 in)
1896	62.5 mm (2.5 in)
1897	62.2 mm (2.4 in)
1898	28.2 mm (1.1 in)
1899	57.2 mm (2.3 in)
1900	30.5 mm (1.2 in)
1901	54.9 mm (2.2 in)
1902	68.8 mm (2.7 in)
1903	36.1 mm (1.4 in)
1904	61.7 mm (2.4 in)
1905	31.5 mm (1.2 in)
1906	45.7 mm (1.8 in)
1907	67.3 mm (2.6 in)
1908	30.5 mm (1.2 in)
1909	35.3 mm (1.4 in)
1910	40.6 mm (1.6 in)
1911	71.1 mm (2.8 in)
1912	22.6 mm (0.9 in)
1913	35.6 mm (1.4 in)
1914	35.6 mm (1.4 in)
1915	35.6 mm (1.4 in)
1916	40.1 mm (1.6 in)
1917	28.7 mm (1.1 in)
1918	45.5 mm (1.8 in)
1919	86.4 mm (3.4 in)
1920	25.1 mm (1.0 in)
1921	62.5 mm (2.5 in)
1922	26.2 mm (1.0 in)
1923	32.5 mm (1.3 in)
1924	75.7 mm (3.0 in)
1925	23.4 mm (0.9 in)
1926	35.6 mm (1.4 in)
1927	23.1 mm (0.9 in)
1928	44.7 mm (1.8 in)
1929	30.0 mm (1.2 in)
1930	35.3 mm (1.4 in)
1931	44.2 mm (1.7 in)
1932	27.7 mm (1.1 in)
1933	68.8 mm (2.7 in)
1934	55.1 mm (2.2 in)
1935	34.3 mm (1.4 in)
1936	35.1 mm (1.4 in)
1937	50.8 mm (2.0 in)
1938	27.4 mm (1.1 in)
1939	37.3 mm (1.5 in)
1940	28.7 mm (1.1 in)
1941	31.2 mm (1.2 in)
1942	29.0 mm (1.1 in)
1943	21.3 mm (0.8 in)
1944	57.2 mm (2.3 in)
1945	46.7 mm (1.8 in)
1946	36.3 mm (1.4 in)
1947	40.9 mm (1.6 in)
1948	41.1 mm (1.6 in)
1949	57.9 mm (2.3 in)
1950	40.1 mm (1.6 in)
1951	27.9 mm (1.1 in)
1952	91.4 mm (3.6 in)
1953	37.6 mm (1.5 in)
1954	37.6 mm (1.5 in)
1955	42.2 mm (1.7 in)
1956	41.7 mm (1.6 in)
1957	43.4 mm (1.7 in)
1958	23.9 mm (0.9 in)
1959	25.4 mm (1.0 in)
1960	73.2 mm (2.9 in)
1961	35.1 mm (1.4 in)
1962	32.8 mm (1.3 in)
1963	58.7 mm (2.3 in)
1964	33.3 mm (1.3 in)
1965	30.2 mm (1.2 in)
1966	32.0 mm (1.3 in)
1967	22.6 mm (0.9 in)
1968	39.9 mm (1.6 in)
1969	24.4 mm (1.0 in)
1970	47.2 mm (1.9 in)
1971	46.0 mm (1.8 in)
1972	44.2 mm (1.7 in)
1973	107.2 mm (4.2 in)
1974	42.6 mm (1.7 in)
1975	25.8 mm (1.0 in)
1976	35.2 mm (1.4 in)
1977	39.0 mm (1.5 in)
1978	44.0 mm (1.7 in)
1979	32.2 mm (1.3 in)
1980	32.8 mm (1.3 in)
1981	27.4 mm (1.1 in)
1982	48.8 mm (1.9 in)
1983	22.0 mm (0.9 in)
1984	23.4 mm (0.9 in)
1985	28.6 mm (1.1 in)
1986	24.0 mm (0.9 in)
1987	84.0 mm (3.3 in)
1988	25.0 mm (1.0 in)
1989	30.0 mm (1.2 in)
1990	52.0 mm (2.0 in)
1991	24.8 mm (1.0 in)
1992	19.8 mm (0.8 in)
1993	26.4 mm (1.0 in)
1994	39.6 mm (1.6 in)
1995	30.8 mm (1.2 in)
1996	25.4 mm (1.0 in)
1997	32.0 mm (1.3 in)
1998	20.2 mm (0.8 in)
2001	51.2 mm (2.0 in)
2002	25.4 mm (1.0 in)
2003	30.8 mm (1.2 in)
2004	31.4 mm (1.2 in)
2005	97.4 mm (3.8 in)
2006	20.2 mm (0.8 in)
2007	51.5 mm (2.0 in)
2008	42.2 mm (1.7 in)
2009	24.4 mm (1.0 in)
2010	65.6 mm (2.6 in)
2011	98.6 mm (3.9 in)
2012	41.8 mm (1.6 in)
2013	22.0 mm (0.9 in)
2014	24.2 mm (1.0 in)
2015	33.0 mm (1.3 in)
2016	26.0 mm (1.0 in)
2017	27.2 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Portarlington, 1884 to 2017. The record is 208.0 mm (8.2 in) in 1973, marked on the chart; the median year is 54.9 mm (2.2 in).

Wettest five days (Rx5day) at Portarlington by year
Year	Wettest five days (Rx5day)
1884	34.3 mm (1.4 in)
1885	79.7 mm (3.1 in)
1886	50.8 mm (2.0 in)
1887	51.0 mm (2.0 in)
1888	45.1 mm (1.8 in)
1889	101.6 mm (4.0 in)
1890	44.5 mm (1.8 in)
1891	116.3 mm (4.6 in)
1892	50.8 mm (2.0 in)
1893	66.6 mm (2.6 in)
1894	42.9 mm (1.7 in)
1895	107.1 mm (4.2 in)
1896	108.5 mm (4.3 in)
1897	93.2 mm (3.7 in)
1898	36.3 mm (1.4 in)
1899	79.1 mm (3.1 in)
1900	40.7 mm (1.6 in)
1901	136.9 mm (5.4 in)
1902	126.0 mm (5.0 in)
1903	82.0 mm (3.2 in)
1904	77.8 mm (3.1 in)
1905	54.8 mm (2.2 in)
1906	57.1 mm (2.2 in)
1907	118.1 mm (4.6 in)
1908	64.8 mm (2.6 in)
1909	50.5 mm (2.0 in)
1910	67.7 mm (2.7 in)
1911	109.9 mm (4.3 in)
1912	42.8 mm (1.7 in)
1913	65.9 mm (2.6 in)
1914	40.4 mm (1.6 in)
1915	42.4 mm (1.7 in)
1916	117.3 mm (4.6 in)
1917	37.4 mm (1.5 in)
1918	90.6 mm (3.6 in)
1919	122.5 mm (4.8 in)
1920	48.5 mm (1.9 in)
1921	75.4 mm (3.0 in)
1922	55.9 mm (2.2 in)
1923	69.8 mm (2.7 in)
1924	127.3 mm (5.0 in)
1925	47.8 mm (1.9 in)
1926	49.3 mm (1.9 in)
1927	30.5 mm (1.2 in)
1928	60.7 mm (2.4 in)
1929	50.1 mm (2.0 in)
1930	52.1 mm (2.1 in)
1931	110.2 mm (4.3 in)
1932	48.3 mm (1.9 in)
1933	94.0 mm (3.7 in)
1934	99.6 mm (3.9 in)
1935	55.6 mm (2.2 in)
1936	77.0 mm (3.0 in)
1937	86.1 mm (3.4 in)
1938	41.9 mm (1.6 in)
1939	64.2 mm (2.5 in)
1940	41.7 mm (1.6 in)
1941	59.4 mm (2.3 in)
1942	45.4 mm (1.8 in)
1943	28.5 mm (1.1 in)
1944	86.6 mm (3.4 in)
1945	57.3 mm (2.3 in)
1946	53.3 mm (2.1 in)
1947	87.1 mm (3.4 in)
1948	54.9 mm (2.2 in)
1949	61.7 mm (2.4 in)
1950	75.3 mm (3.0 in)
1951	52.9 mm (2.1 in)
1952	96.5 mm (3.8 in)
1953	44.5 mm (1.8 in)
1954	68.4 mm (2.7 in)
1955	43.7 mm (1.7 in)
1956	66.6 mm (2.6 in)
1957	67.2 mm (2.6 in)
1958	37.6 mm (1.5 in)
1959	49.8 mm (2.0 in)
1960	149.7 mm (5.9 in)
1961	42.2 mm (1.7 in)
1962	63.3 mm (2.5 in)
1963	66.8 mm (2.6 in)
1964	69.1 mm (2.7 in)
1965	71.8 mm (2.8 in)
1966	69.6 mm (2.7 in)
1967	39.8 mm (1.6 in)
1968	68.6 mm (2.7 in)
1969	47.5 mm (1.9 in)
1970	74.1 mm (2.9 in)
1971	77.5 mm (3.1 in)
1972	83.1 mm (3.3 in)
1973	208.0 mm (8.2 in)
1974	52.8 mm (2.1 in)
1975	39.2 mm (1.5 in)
1976	78.8 mm (3.1 in)
1977	47.2 mm (1.9 in)
1978	65.4 mm (2.6 in)
1979	32.8 mm (1.3 in)
1980	16.4 mm (0.6 in)
1981	29.6 mm (1.2 in)
1982	61.0 mm (2.4 in)
1983	29.8 mm (1.2 in)
1984	46.2 mm (1.8 in)
1985	30.2 mm (1.2 in)
1986	23.2 mm (0.9 in)
1987	43.2 mm (1.7 in)
1988	32.4 mm (1.3 in)
1989	34.0 mm (1.3 in)
1990	45.0 mm (1.8 in)
1991	22.8 mm (0.9 in)
1992	15.8 mm (0.6 in)
1993	42.0 mm (1.7 in)
1994	24.4 mm (1.0 in)
1995	38.6 mm (1.5 in)
1996	33.0 mm (1.3 in)
1997	39.2 mm (1.5 in)
1998	27.2 mm (1.1 in)
2001	143.7 mm (5.7 in)
2002	28.0 mm (1.1 in)
2003	63.1 mm (2.5 in)
2004	52.2 mm (2.1 in)
2005	142.4 mm (5.6 in)
2006	24.0 mm (0.9 in)
2007	71.5 mm (2.8 in)
2008	68.2 mm (2.7 in)
2009	49.6 mm (2.0 in)
2010	83.0 mm (3.3 in)
2011	106.4 mm (4.2 in)
2012	60.6 mm (2.4 in)
2013	38.1 mm (1.5 in)
2014	36.4 mm (1.4 in)
2015	37.6 mm (1.5 in)
2016	49.6 mm (2.0 in)
2017	27.2 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Portarlington, 1884 to 2017. The record is 49 days in 1926, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Portarlington by year
Year	Longest dry spell (CDD)
1884	15 days
1885	15 days
1886	30 days
1887	13 days
1888	28 days
1889	21 days
1890	30 days
1891	42 days
1892	28 days
1893	26 days
1894	30 days
1895	27 days
1896	18 days
1897	20 days
1898	36 days
1899	26 days
1900	26 days
1901	28 days
1902	39 days
1903	18 days
1904	33 days
1905	28 days
1906	37 days
1907	31 days
1908	24 days
1909	24 days
1910	22 days
1911	24 days
1912	37 days
1913	32 days
1914	28 days
1915	18 days
1916	25 days
1917	18 days
1918	29 days
1919	18 days
1920	25 days
1921	22 days
1922	29 days
1923	41 days
1924	15 days
1925	16 days
1926	49 days
1927	18 days
1928	21 days
1929	21 days
1930	38 days
1931	16 days
1932	36 days
1933	19 days
1934	20 days
1935	27 days
1936	21 days
1937	18 days
1938	29 days
1939	29 days
1940	19 days
1941	14 days
1942	19 days
1943	17 days
1944	28 days
1945	23 days
1946	17 days
1947	15 days
1948	24 days
1949	20 days
1950	25 days
1951	27 days
1952	30 days
1953	21 days
1954	24 days
1955	27 days
1956	34 days
1957	18 days
1958	26 days
1959	19 days
1960	18 days
1961	28 days
1962	20 days
1963	21 days
1964	20 days
1965	44 days
1966	12 days
1967	30 days
1968	26 days
1969	18 days
1970	32 days
1971	17 days
1972	31 days
1973	17 days
1974	22 days
1975	29 days
1976	42 days
1977	25 days
1978	14 days
1979	18 days
1980	25 days
1981	28 days
1982	20 days
1983	30 days
1984	14 days
1985	28 days
1986	28 days
1987	18 days
1988	31 days
1989	21 days
1990	15 days
1991	39 days
1992	15 days
1993	11 days
1994	21 days
1995	11 days
1996	18 days
1997	21 days
1998	12 days
2001	14 days
2002	32 days
2003	25 days
2004	23 days
2005	23 days
2006	28 days
2007	23 days
2008	18 days
2009	37 days
2010	21 days
2011	12 days
2012	18 days
2013	26 days
2014	22 days
2015	17 days
2016	18 days
2017	12 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

104 years, 1885 to 2016

A day with at least 37.7 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 114.4 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Portarlington: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	37.7 mm (1.5 in)
5 years	52.8 mm (2.1 in)
10 years	64.6 mm (2.5 in)
25 years	82.1 mm (3.2 in)
50 years	97.3 mm (3.8 in)
100 years	114.4 mm (4.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 104 years of values from 1885 to 2016.

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: 107.2 mm (4.2 in) in 1973; 98.6 mm (3.9 in) in 2011; 97.4 mm (3.8 in) in 2005.

Download the Data

Data for Portarlington standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Portarlington 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

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