Mallan (Niemur Valley) Weather Records (ASN00075020)

Record envelope, standing records and threshold days for Mallan (Niemur Valley) (ASN00075020), Australia, with 135 years of record.

Key Facts for Mallan (Niemur Valley)

Mallan (Niemur Valley) (ASN00075020) is a weather station in Australia at -35.16 latitude and 143.87 longitude, 64 m (210 ft) above sea level.
The station reports from 1877 to 2011, 135 years of record.
0 records set at Mallan (Niemur Valley) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Mallan (Niemur Valley) set a daily record precipitation of 57.2 mm (2.3 in) on 26 November 2011.

About the Station

Location: Australia, -35.16 latitude, 143.87 longitude.
Elevation: 64 m (210 ft).
Period of record: 1877 to 2011, 135 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 Mallan (Niemur Valley). 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 Mallan (Niemur Valley), 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 Mallan (Niemur Valley) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Mallan (Niemur Valley) between 21 March 1926 and 21 March 1926. Each dot is a new record.

Wettest Day of Each Month

Mar: 78.7 mm (3.1 in)

The wettest day on record for each calendar month at Mallan (Niemur Valley). The most was 78.7 mm (3.1 in) on 21 March 1926.

Record daily precipitation for each month at Mallan (Niemur Valley)
Month	Record daily precipitation (mm)	Date
Jan	73.0 mm (2.9 in)	4 January 1974
Feb	76.2 mm (3.0 in)	26 February 1939
Mar	78.7 mm (3.1 in)	21 March 1926
Apr	47.0 mm (1.9 in)	21 April 1990
May	50.2 mm (2.0 in)	12 May 1992
Jun	45.7 mm (1.8 in)	4 June 1923
Jul	66.0 mm (2.6 in)	3 July 1936
Aug	59.9 mm (2.4 in)	15 August 1958
Sep	33.5 mm (1.3 in)	10 September 1921
Oct	59.2 mm (2.3 in)	24 October 1975
Nov	73.6 mm (2.9 in)	12 November 1998
Dec	72.1 mm (2.8 in)	14 December 1894

Latest Records

Latest records at Mallan (Niemur Valley)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 November 2011	Mallan (Niemur Valley), AU	daily rain	57.2 mm (2.3 in)	35.8 mm (1.4 in)	28 years	58 of 100 (Notable)
10 November 2011	Mallan (Niemur Valley), AU	daily rain	25.4 mm (1.0 in)	13.4 mm (0.5 in)	18 years	30 of 100 (Routine)
9 March 2011	Mallan (Niemur Valley), AU	daily rain	36.0 mm (1.4 in)	27.4 mm (1.1 in)	16 years	40 of 100 (Notable)
5 February 2011	Mallan (Niemur Valley), AU	daily rain	47.8 mm (1.9 in)	5.1 mm (0.20 in)	121 years	44 of 100 (Notable)
14 January 2011	Mallan (Niemur Valley), AU	daily rain	55.6 mm (2.2 in)	28.9 mm (1.1 in)	100 years	65 of 100 (Major)
12 January 2011	Mallan (Niemur Valley), AU	daily rain	35.4 mm (1.4 in)	25.0 mm (1.0 in)	35 years	42 of 100 (Notable)
11 January 2011	Mallan (Niemur Valley), AU	daily rain	25.0 mm (1.0 in)	20.7 mm (0.8 in)	92 years	55 of 100 (Notable)
9 December 2010	Mallan (Niemur Valley), AU	daily rain	31.8 mm (1.3 in)	1.4 mm (0.06 in)	24 years	18 of 100 (Routine)
25 November 2010	Mallan (Niemur Valley), AU	daily rain	33.4 mm (1.3 in)	2.9 mm (0.11 in)	44 years	26 of 100 (Routine)
31 October 2010	Mallan (Niemur Valley), AU	daily rain	30.6 mm (1.2 in)	10.0 mm (0.4 in)	35 years	33 of 100 (Routine)
15 October 2010	Mallan (Niemur Valley), AU	daily rain	16.0 mm (0.6 in)	0.3 mm (0.01 in)	81 years	20 of 100 (Routine)
10 August 2010	Mallan (Niemur Valley), AU	daily rain	21.8 mm (0.9 in)	1.7 mm (0.07 in)	44 years	20 of 100 (Routine)
25 May 2010	Mallan (Niemur Valley), AU	daily rain	30.6 mm (1.2 in)	11.5 mm (0.5 in)	68 years	46 of 100 (Notable)
29 March 2010	Mallan (Niemur Valley), AU	daily rain	13.4 mm (0.5 in)	0.7 mm (0.03 in)	118 years	20 of 100 (Routine)
27 November 2009	Mallan (Niemur Valley), AU	daily rain	22.2 mm (0.9 in)	13.3 mm (0.5 in)	48 years	20 of 100 (Routine)
22 November 2009	Mallan (Niemur Valley), AU	daily rain	38.0 mm (1.5 in)	11.3 mm (0.4 in)	92 years	50 of 100 (Notable)
3 June 2009	Mallan (Niemur Valley), AU	daily rain	21.0 mm (0.8 in)	3.0 mm (0.12 in)	46 years	20 of 100 (Routine)
20 November 2008	Mallan (Niemur Valley), AU	daily rain	24.2 mm (1.0 in)	3.9 mm (0.15 in)	54 years	20 of 100 (Routine)
22 December 2007	Mallan (Niemur Valley), AU	daily rain	57.8 mm (2.3 in)	36.0 mm (1.4 in)	13 years	54 of 100 (Notable)
30 April 2007	Mallan (Niemur Valley), AU	daily rain	30.6 mm (1.2 in)	9.3 mm (0.37 in)	111 years	53 of 100 (Notable)

Extremes by Year

1877 to 2011

Yearly extremes at Mallan (Niemur Valley): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	78.7 mm (3.1 in)	1926	33.0 mm (1.3 in)	132
Wettest five days (Rx5day)	132.1 mm (5.2 in)	2011	47.4 mm (1.9 in)	132
Longest dry spell (CDD)	98 days	1965	42 days	132

Wettest day (Rx1day)

The wettest day of the year at Mallan (Niemur Valley), 1877 to 2011. The record is 78.7 mm (3.1 in) in 1926, marked on the chart; the median year is 33.0 mm (1.3 in).

Wettest day (Rx1day) at Mallan (Niemur Valley) by year
Year	Wettest day (Rx1day)
1877	0.0 mm (0.00 in)
1878	0.0 mm (0.00 in)
1879	0.0 mm (0.00 in)
1882	0.0 mm (0.00 in)
1883	0.0 mm (0.00 in)
1884	0.0 mm (0.00 in)
1886	44.5 mm (1.8 in)
1887	47.0 mm (1.9 in)
1888	25.1 mm (1.0 in)
1889	54.1 mm (2.1 in)
1890	40.1 mm (1.6 in)
1891	40.9 mm (1.6 in)
1892	30.7 mm (1.2 in)
1893	22.4 mm (0.9 in)
1894	72.1 mm (2.8 in)
1895	21.3 mm (0.8 in)
1896	32.5 mm (1.3 in)
1897	51.8 mm (2.0 in)
1898	54.1 mm (2.1 in)
1899	19.8 mm (0.8 in)
1900	26.7 mm (1.1 in)
1901	16.0 mm (0.6 in)
1902	15.0 mm (0.6 in)
1903	27.2 mm (1.1 in)
1904	30.0 mm (1.2 in)
1905	38.1 mm (1.5 in)
1906	44.5 mm (1.8 in)
1907	27.9 mm (1.1 in)
1908	20.8 mm (0.8 in)
1909	33.0 mm (1.3 in)
1910	38.1 mm (1.5 in)
1911	43.9 mm (1.7 in)
1912	33.0 mm (1.3 in)
1913	27.2 mm (1.1 in)
1914	22.9 mm (0.9 in)
1915	30.5 mm (1.2 in)
1916	26.7 mm (1.1 in)
1917	31.0 mm (1.2 in)
1918	45.2 mm (1.8 in)
1919	30.5 mm (1.2 in)
1920	20.3 mm (0.8 in)
1921	33.5 mm (1.3 in)
1922	11.2 mm (0.4 in)
1923	45.7 mm (1.8 in)
1924	33.5 mm (1.3 in)
1925	16.3 mm (0.6 in)
1926	78.7 mm (3.1 in)
1927	12.4 mm (0.5 in)
1928	70.4 mm (2.8 in)
1929	36.3 mm (1.4 in)
1930	52.6 mm (2.1 in)
1931	37.6 mm (1.5 in)
1932	40.9 mm (1.6 in)
1933	38.1 mm (1.5 in)
1934	55.9 mm (2.2 in)
1935	24.4 mm (1.0 in)
1936	66.0 mm (2.6 in)
1937	30.5 mm (1.2 in)
1938	25.9 mm (1.0 in)
1939	76.2 mm (3.0 in)
1940	19.6 mm (0.8 in)
1941	62.5 mm (2.5 in)
1942	27.4 mm (1.1 in)
1943	13.2 mm (0.5 in)
1944	17.8 mm (0.7 in)
1945	26.9 mm (1.1 in)
1946	50.8 mm (2.0 in)
1947	22.1 mm (0.9 in)
1948	32.3 mm (1.3 in)
1949	41.1 mm (1.6 in)
1950	35.8 mm (1.4 in)
1951	31.0 mm (1.2 in)
1952	35.8 mm (1.4 in)
1953	29.0 mm (1.1 in)
1954	27.9 mm (1.1 in)
1955	30.5 mm (1.2 in)
1956	68.6 mm (2.7 in)
1957	24.1 mm (0.9 in)
1958	59.9 mm (2.4 in)
1959	54.9 mm (2.2 in)
1960	47.0 mm (1.9 in)
1961	50.8 mm (2.0 in)
1962	40.1 mm (1.6 in)
1963	33.3 mm (1.3 in)
1964	41.1 mm (1.6 in)
1965	36.8 mm (1.4 in)
1966	25.9 mm (1.0 in)
1967	32.0 mm (1.3 in)
1968	43.4 mm (1.7 in)
1969	69.3 mm (2.7 in)
1970	23.4 mm (0.9 in)
1971	42.9 mm (1.7 in)
1972	15.7 mm (0.6 in)
1973	63.0 mm (2.5 in)
1974	73.0 mm (2.9 in)
1975	59.2 mm (2.3 in)
1976	20.8 mm (0.8 in)
1977	33.8 mm (1.3 in)
1978	37.6 mm (1.5 in)
1979	31.6 mm (1.2 in)
1980	21.8 mm (0.9 in)
1981	62.2 mm (2.4 in)
1982	25.6 mm (1.0 in)
1983	73.8 mm (2.9 in)
1984	36.6 mm (1.4 in)
1985	30.4 mm (1.2 in)
1986	29.6 mm (1.2 in)
1987	23.6 mm (0.9 in)
1988	52.2 mm (2.1 in)
1989	29.8 mm (1.2 in)
1990	47.0 mm (1.9 in)
1991	29.8 mm (1.2 in)
1992	50.2 mm (2.0 in)
1993	33.0 mm (1.3 in)
1994	38.4 mm (1.5 in)
1995	36.6 mm (1.4 in)
1996	28.0 mm (1.1 in)
1997	24.4 mm (1.0 in)
1998	73.6 mm (2.9 in)
1999	43.1 mm (1.7 in)
2000	30.0 mm (1.2 in)
2001	20.0 mm (0.8 in)
2002	30.6 mm (1.2 in)
2003	28.4 mm (1.1 in)
2004	49.8 mm (2.0 in)
2005	44.6 mm (1.8 in)
2006	17.8 mm (0.7 in)
2007	57.8 mm (2.3 in)
2008	29.0 mm (1.1 in)
2009	38.0 mm (1.5 in)
2010	33.4 mm (1.3 in)
2011	57.2 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mallan (Niemur Valley), 1877 to 2011. The record is 132.1 mm (5.2 in) in 2011, marked on the chart; the median year is 47.4 mm (1.9 in).

Wettest five days (Rx5day) at Mallan (Niemur Valley) by year
Year	Wettest five days (Rx5day)
1877	0.0 mm (0.00 in)
1878	0.0 mm (0.00 in)
1879	0.0 mm (0.00 in)
1882	0.0 mm (0.00 in)
1883	0.0 mm (0.00 in)
1884	0.0 mm (0.00 in)
1886	57.8 mm (2.3 in)
1887	63.2 mm (2.5 in)
1888	30.9 mm (1.2 in)
1889	102.9 mm (4.1 in)
1890	40.4 mm (1.6 in)
1891	69.4 mm (2.7 in)
1892	55.6 mm (2.2 in)
1893	47.1 mm (1.9 in)
1894	126.4 mm (5.0 in)
1895	24.7 mm (1.0 in)
1896	36.3 mm (1.4 in)
1897	52.8 mm (2.1 in)
1898	62.2 mm (2.4 in)
1899	46.3 mm (1.8 in)
1900	44.7 mm (1.8 in)
1901	24.3 mm (1.0 in)
1902	38.9 mm (1.5 in)
1903	52.6 mm (2.1 in)
1904	38.7 mm (1.5 in)
1905	46.7 mm (1.8 in)
1906	78.0 mm (3.1 in)
1907	40.7 mm (1.6 in)
1908	38.4 mm (1.5 in)
1909	59.2 mm (2.3 in)
1910	51.3 mm (2.0 in)
1911	78.6 mm (3.1 in)
1912	56.2 mm (2.2 in)
1913	35.1 mm (1.4 in)
1914	31.5 mm (1.2 in)
1915	42.6 mm (1.7 in)
1916	46.0 mm (1.8 in)
1917	60.2 mm (2.4 in)
1918	78.8 mm (3.1 in)
1919	30.5 mm (1.2 in)
1920	48.6 mm (1.9 in)
1921	42.6 mm (1.7 in)
1922	17.0 mm (0.7 in)
1923	79.4 mm (3.1 in)
1924	41.4 mm (1.6 in)
1925	25.9 mm (1.0 in)
1926	85.3 mm (3.4 in)
1927	23.7 mm (0.9 in)
1928	97.6 mm (3.8 in)
1929	46.2 mm (1.8 in)
1930	67.9 mm (2.7 in)
1931	41.2 mm (1.6 in)
1932	76.9 mm (3.0 in)
1933	79.8 mm (3.1 in)
1934	69.6 mm (2.7 in)
1935	52.3 mm (2.1 in)
1936	79.7 mm (3.1 in)
1937	30.5 mm (1.2 in)
1938	32.0 mm (1.3 in)
1939	77.7 mm (3.1 in)
1940	28.2 mm (1.1 in)
1941	62.5 mm (2.5 in)
1942	31.2 mm (1.2 in)
1943	14.7 mm (0.6 in)
1944	20.3 mm (0.8 in)
1945	65.0 mm (2.6 in)
1946	71.4 mm (2.8 in)
1947	35.8 mm (1.4 in)
1948	40.9 mm (1.6 in)
1949	74.9 mm (2.9 in)
1950	74.4 mm (2.9 in)
1951	47.8 mm (1.9 in)
1952	50.0 mm (2.0 in)
1953	34.5 mm (1.4 in)
1954	64.8 mm (2.6 in)
1955	55.1 mm (2.2 in)
1956	94.8 mm (3.7 in)
1957	46.9 mm (1.8 in)
1958	67.5 mm (2.7 in)
1959	54.9 mm (2.2 in)
1960	49.3 mm (1.9 in)
1961	55.6 mm (2.2 in)
1962	47.2 mm (1.9 in)
1963	48.0 mm (1.9 in)
1964	52.0 mm (2.0 in)
1965	52.1 mm (2.1 in)
1966	39.7 mm (1.6 in)
1967	32.0 mm (1.3 in)
1968	43.4 mm (1.7 in)
1969	92.2 mm (3.6 in)
1970	43.7 mm (1.7 in)
1971	45.5 mm (1.8 in)
1972	23.6 mm (0.9 in)
1973	64.2 mm (2.5 in)
1974	74.2 mm (2.9 in)
1975	68.8 mm (2.7 in)
1976	34.0 mm (1.3 in)
1977	38.2 mm (1.5 in)
1978	43.2 mm (1.7 in)
1979	49.4 mm (1.9 in)
1980	40.2 mm (1.6 in)
1981	99.8 mm (3.9 in)
1982	25.6 mm (1.0 in)
1983	124.4 mm (4.9 in)
1984	69.4 mm (2.7 in)
1985	58.0 mm (2.3 in)
1986	54.6 mm (2.1 in)
1987	30.8 mm (1.2 in)
1988	67.2 mm (2.6 in)
1989	36.6 mm (1.4 in)
1990	47.6 mm (1.9 in)
1991	32.0 mm (1.3 in)
1992	62.4 mm (2.5 in)
1993	72.2 mm (2.8 in)
1994	55.6 mm (2.2 in)
1995	43.8 mm (1.7 in)
1996	32.2 mm (1.3 in)
1997	33.8 mm (1.3 in)
1998	77.2 mm (3.0 in)
1999	44.8 mm (1.8 in)
2000	66.4 mm (2.6 in)
2001	21.8 mm (0.9 in)
2002	37.6 mm (1.5 in)
2003	41.0 mm (1.6 in)
2004	57.4 mm (2.3 in)
2005	84.8 mm (3.3 in)
2006	36.8 mm (1.4 in)
2007	66.2 mm (2.6 in)
2008	39.0 mm (1.5 in)
2009	38.0 mm (1.5 in)
2010	66.8 mm (2.6 in)
2011	132.1 mm (5.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mallan (Niemur Valley), 1877 to 2011. The record is 98 days in 1965, marked on the chart; the median year is 42 days.

Longest dry spell (CDD) at Mallan (Niemur Valley) by year
Year	Longest dry spell (CDD)
1877	31 days
1878	31 days
1879	28 days
1882	59 days
1883	31 days
1884	31 days
1886	92 days
1887	23 days
1888	63 days
1889	54 days
1890	33 days
1891	69 days
1892	31 days
1893	66 days
1894	36 days
1895	49 days
1896	37 days
1897	54 days
1898	42 days
1899	37 days
1900	43 days
1901	53 days
1902	71 days
1903	33 days
1904	45 days
1905	48 days
1906	32 days
1907	31 days
1908	37 days
1909	50 days
1910	61 days
1911	49 days
1912	72 days
1913	48 days
1914	79 days
1915	68 days
1916	55 days
1917	22 days
1918	67 days
1919	41 days
1920	49 days
1921	44 days
1922	82 days
1923	34 days
1924	32 days
1925	38 days
1926	60 days
1927	48 days
1928	35 days
1929	30 days
1930	31 days
1931	41 days
1932	31 days
1933	37 days
1934	51 days
1935	35 days
1936	39 days
1937	65 days
1938	67 days
1939	46 days
1940	86 days
1941	49 days
1942	40 days
1943	48 days
1944	68 days
1945	72 days
1946	33 days
1947	25 days
1948	54 days
1949	38 days
1950	35 days
1951	40 days
1952	32 days
1953	56 days
1954	49 days
1955	35 days
1956	46 days
1957	49 days
1958	44 days
1959	61 days
1960	46 days
1961	84 days
1962	49 days
1963	29 days
1964	37 days
1965	98 days
1966	26 days
1967	78 days
1968	32 days
1969	39 days
1970	34 days
1971	30 days
1972	37 days
1973	35 days
1974	22 days
1975	28 days
1976	39 days
1977	45 days
1978	41 days
1979	41 days
1980	59 days
1981	36 days
1982	43 days
1983	41 days
1984	49 days
1985	39 days
1986	53 days
1987	27 days
1988	35 days
1989	32 days
1990	35 days
1991	66 days
1992	34 days
1993	41 days
1994	49 days
1995	53 days
1996	31 days
1997	62 days
1998	43 days
1999	20 days
2000	38 days
2001	55 days
2002	37 days
2003	50 days
2004	68 days
2005	38 days
2006	43 days
2007	42 days
2008	46 days
2009	61 days
2010	26 days
2011	20 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

124 years, 1886 to 2010

A day with at least 34.4 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 89.3 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Mallan (Niemur Valley): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	34.4 mm (1.4 in)
5 years	48.4 mm (1.9 in)
10 years	57.9 mm (2.3 in)
25 years	70.3 mm (2.8 in)
50 years	79.7 mm (3.1 in)
100 years	89.3 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, 124 years of values from 1886 to 2010.

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: 78.7 mm (3.1 in) in 1926; 76.2 mm (3.0 in) in 1939; 73.8 mm (2.9 in) in 1983.

Download the Data

Data for Mallan (Niemur Valley) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mallan (Niemur Valley) 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 2026-10-15 (15 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