Mundaring Weir Weather Records (ASN00009031)

Record envelope, standing records and threshold days for Mundaring Weir (ASN00009031), Australia, with 120 years of record.

Key Facts for Mundaring Weir

Mundaring Weir (ASN00009031) is a weather station in Australia at -31.96 latitude and 116.16 longitude, 190 m (623 ft) above sea level.
The station reports from 1900 to 2019, 120 years of record.
0 records set at Mundaring Weir still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Mundaring Weir tied a daily record precipitation of 16.0 mm (0.6 in) on 6 December 2015.

About the Station

Location: Australia, -31.96 latitude, 116.16 longitude.
Elevation: 190 m (623 ft).
Period of record: 1900 to 2019, 120 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 Mundaring Weir. 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 Mundaring Weir, 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 Mundaring Weir still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Mundaring Weir between 30 July 2001 and 30 July 2001. Each dot is a new record.

Wettest Day of Each Month

Jul: 147.0 mm (5.8 in)

The wettest day on record for each calendar month at Mundaring Weir. The most was 147.0 mm (5.8 in) on 30 July 2001.

Record daily precipitation for each month at Mundaring Weir
Month	Record daily precipitation (mm)	Date
Jan	115.0 mm (4.5 in)	29 January 1990
Feb	99.8 mm (3.9 in)	8 February 2008
Mar	116.8 mm (4.6 in)	9 March 1934
Apr	76.0 mm (3.0 in)	8 April 1987
May	104.6 mm (4.1 in)	25 May 1963
Jun	104.1 mm (4.1 in)	10 June 1920
Jul	147.0 mm (5.8 in)	30 July 2001
Aug	67.3 mm (2.6 in)	22 August 1924
Sep	79.0 mm (3.1 in)	30 September 1971
Oct	59.2 mm (2.3 in)	6 October 1965
Nov	53.8 mm (2.1 in)	15 November 1948
Dec	61.0 mm (2.4 in)	1 December 1913

Latest Records

Latest records at Mundaring Weir
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 December 2015	Mundaring Weir, AU	daily rain (Tie)	16.0 mm (0.6 in)	tie	74 years	8 of 100 (Routine)
4 February 2015	Mundaring Weir, AU	daily rain	5.0 mm (0.20 in)	4.5 mm (0.18 in)	44 years	20 of 100 (Routine)
27 November 2014	Mundaring Weir, AU	daily rain	17.0 mm (0.7 in)	7.6 mm (0.30 in)	88 years	20 of 100 (Routine)
30 August 2014	Mundaring Weir, AU	daily rain	63.5 mm (2.5 in)	14.7 mm (0.6 in)	60 years	41 of 100 (Notable)
8 May 2014	Mundaring Weir, AU	daily rain	47.0 mm (1.9 in)	14.0 mm (0.6 in)	101 years	51 of 100 (Notable)
9 August 2013	Mundaring Weir, AU	daily rain	36.0 mm (1.4 in)	1.7 mm (0.07 in)	106 years	41 of 100 (Notable)
25 March 2013	Mundaring Weir, AU	daily rain	14.0 mm (0.6 in)	1.5 mm (0.06 in)	24 years	18 of 100 (Routine)
15 March 2013	Mundaring Weir, AU	daily rain	33.0 mm (1.3 in)	6.3 mm (0.25 in)	70 years	37 of 100 (Notable)
29 November 2012	Mundaring Weir, AU	daily rain	37.4 mm (1.5 in)	1.4 mm (0.06 in)	25 years	18 of 100 (Routine)
4 November 2012	Mundaring Weir, AU	daily rain	20.8 mm (0.8 in)	8.6 mm (0.34 in)	4 years	20 of 100 (Routine)
13 August 2012	Mundaring Weir, AU	daily rain	43.0 mm (1.7 in)	10.7 mm (0.4 in)	99 years	48 of 100 (Notable)
3 February 2012	Mundaring Weir, AU	daily rain	20.8 mm (0.8 in)	4.5 mm (0.18 in)	44 years	20 of 100 (Routine)
21 January 2012	Mundaring Weir, AU	daily rain	65.8 mm (2.6 in)	32.2 mm (1.3 in)	29 years	49 of 100 (Notable)
23 March 2010	Mundaring Weir, AU	daily rain	22.0 mm (0.9 in)	11.1 mm (0.4 in)	84 years	20 of 100 (Routine)
19 November 2009	Mundaring Weir, AU	daily rain	23.8 mm (0.9 in)	8.8 mm (0.35 in)	16 years	20 of 100 (Routine)
19 July 2009	Mundaring Weir, AU	daily rain	37.8 mm (1.5 in)	4.8 mm (0.19 in)	71 years	34 of 100 (Routine)
22 November 2008	Mundaring Weir, AU	daily rain	14.0 mm (0.6 in)	2.6 mm (0.10 in)	92 years	20 of 100 (Routine)
4 November 2008	Mundaring Weir, AU	daily rain	12.2 mm (0.5 in)	0.8 mm (0.03 in)	94 years	20 of 100 (Routine)
25 October 2008	Mundaring Weir, AU	daily rain	30.4 mm (1.2 in)	6.8 mm (0.27 in)	61 years	36 of 100 (Notable)
6 April 2008	Mundaring Weir, AU	daily rain	55.4 mm (2.2 in)	22.4 mm (0.9 in)	57 years	49 of 100 (Notable)

Extremes by Year

1900 to 2019

Yearly extremes at Mundaring Weir: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	147.0 mm (5.8 in)	2001	53.2 mm (2.1 in)	116
Wettest five days (Rx5day)	249.0 mm (9.8 in)	1945	112.2 mm (4.4 in)	116
Longest dry spell (CDD)	105 days	2004	43 days	116

Wettest day (Rx1day)

The wettest day of the year at Mundaring Weir, 1900 to 2019. The record is 147.0 mm (5.8 in) in 2001, marked on the chart; the median year is 53.2 mm (2.1 in).

Wettest day (Rx1day) at Mundaring Weir by year
Year	Wettest day (Rx1day)
1900	0.0 mm (0.00 in)
1902	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	77.5 mm (3.1 in)
1908	68.6 mm (2.7 in)
1909	47.0 mm (1.9 in)
1910	47.0 mm (1.9 in)
1911	49.5 mm (1.9 in)
1912	57.2 mm (2.3 in)
1913	61.0 mm (2.4 in)
1914	41.9 mm (1.6 in)
1915	94.0 mm (3.7 in)
1916	47.0 mm (1.9 in)
1917	48.5 mm (1.9 in)
1918	52.8 mm (2.1 in)
1919	53.3 mm (2.1 in)
1920	104.1 mm (4.1 in)
1921	53.1 mm (2.1 in)
1922	51.3 mm (2.0 in)
1923	74.9 mm (2.9 in)
1924	67.3 mm (2.6 in)
1925	43.2 mm (1.7 in)
1926	61.2 mm (2.4 in)
1927	38.9 mm (1.5 in)
1928	76.2 mm (3.0 in)
1929	62.2 mm (2.4 in)
1930	95.5 mm (3.8 in)
1931	54.6 mm (2.1 in)
1932	84.8 mm (3.3 in)
1933	43.9 mm (1.7 in)
1934	116.8 mm (4.6 in)
1935	73.7 mm (2.9 in)
1936	99.1 mm (3.9 in)
1937	57.2 mm (2.3 in)
1938	53.3 mm (2.1 in)
1939	55.9 mm (2.2 in)
1940	52.1 mm (2.1 in)
1941	45.7 mm (1.8 in)
1942	59.7 mm (2.4 in)
1943	44.5 mm (1.8 in)
1944	63.8 mm (2.5 in)
1945	91.2 mm (3.6 in)
1946	63.2 mm (2.5 in)
1947	68.6 mm (2.7 in)
1948	65.8 mm (2.6 in)
1949	48.3 mm (1.9 in)
1950	58.4 mm (2.3 in)
1951	67.3 mm (2.6 in)
1952	58.9 mm (2.3 in)
1953	50.0 mm (2.0 in)
1954	53.1 mm (2.1 in)
1955	97.3 mm (3.8 in)
1956	51.8 mm (2.0 in)
1957	68.6 mm (2.7 in)
1958	58.4 mm (2.3 in)
1959	50.8 mm (2.0 in)
1960	41.4 mm (1.6 in)
1961	51.6 mm (2.0 in)
1962	48.8 mm (1.9 in)
1963	104.6 mm (4.1 in)
1964	69.1 mm (2.7 in)
1965	64.3 mm (2.5 in)
1966	41.7 mm (1.6 in)
1967	74.9 mm (2.9 in)
1968	70.6 mm (2.8 in)
1969	61.7 mm (2.4 in)
1970	63.2 mm (2.5 in)
1971	79.0 mm (3.1 in)
1972	52.1 mm (2.1 in)
1973	40.1 mm (1.6 in)
1974	49.8 mm (2.0 in)
1975	43.0 mm (1.7 in)
1976	41.2 mm (1.6 in)
1977	50.2 mm (2.0 in)
1978	94.5 mm (3.7 in)
1979	35.2 mm (1.4 in)
1980	58.0 mm (2.3 in)
1981	56.4 mm (2.2 in)
1982	39.5 mm (1.6 in)
1983	64.0 mm (2.5 in)
1984	52.2 mm (2.1 in)
1985	62.8 mm (2.5 in)
1986	99.4 mm (3.9 in)
1987	76.0 mm (3.0 in)
1988	67.0 mm (2.6 in)
1989	42.0 mm (1.7 in)
1990	115.0 mm (4.5 in)
1991	51.2 mm (2.0 in)
1992	36.7 mm (1.4 in)
1993	67.0 mm (2.6 in)
1994	47.6 mm (1.9 in)
1995	57.2 mm (2.3 in)
1996	49.8 mm (2.0 in)
1997	39.2 mm (1.5 in)
1998	42.6 mm (1.7 in)
1999	40.0 mm (1.6 in)
2000	55.9 mm (2.2 in)
2001	147.0 mm (5.8 in)
2002	40.7 mm (1.6 in)
2003	46.2 mm (1.8 in)
2004	46.0 mm (1.8 in)
2005	67.5 mm (2.7 in)
2006	27.8 mm (1.1 in)
2007	37.0 mm (1.5 in)
2008	99.8 mm (3.9 in)
2009	37.8 mm (1.5 in)
2010	41.8 mm (1.6 in)
2011	36.6 mm (1.4 in)
2012	65.8 mm (2.6 in)
2013	46.0 mm (1.8 in)
2014	63.5 mm (2.5 in)
2015	44.0 mm (1.7 in)
2016	33.0 mm (1.3 in)
2019	7.0 mm (0.28 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mundaring Weir, 1900 to 2019. The record is 249.0 mm (9.8 in) in 1945, marked on the chart; the median year is 112.2 mm (4.4 in).

Wettest five days (Rx5day) at Mundaring Weir by year
Year	Wettest five days (Rx5day)
1900	0.0 mm (0.00 in)
1902	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	155.5 mm (6.1 in)
1908	101.0 mm (4.0 in)
1909	120.2 mm (4.7 in)
1910	122.7 mm (4.8 in)
1911	121.4 mm (4.8 in)
1912	122.7 mm (4.8 in)
1913	94.0 mm (3.7 in)
1914	62.2 mm (2.4 in)
1915	142.4 mm (5.6 in)
1916	96.8 mm (3.8 in)
1917	120.4 mm (4.7 in)
1918	110.3 mm (4.3 in)
1919	135.9 mm (5.4 in)
1920	180.8 mm (7.1 in)
1921	120.1 mm (4.7 in)
1922	91.3 mm (3.6 in)
1923	119.2 mm (4.7 in)
1924	114.9 mm (4.5 in)
1925	71.4 mm (2.8 in)
1926	151.9 mm (6.0 in)
1927	87.2 mm (3.4 in)
1928	150.0 mm (5.9 in)
1929	102.7 mm (4.0 in)
1930	189.5 mm (7.5 in)
1931	150.8 mm (5.9 in)
1932	158.2 mm (6.2 in)
1933	115.8 mm (4.6 in)
1934	143.1 mm (5.6 in)
1935	117.4 mm (4.6 in)
1936	164.7 mm (6.5 in)
1937	115.1 mm (4.5 in)
1938	97.3 mm (3.8 in)
1939	153.0 mm (6.0 in)
1940	76.3 mm (3.0 in)
1941	87.1 mm (3.4 in)
1942	103.8 mm (4.1 in)
1943	139.0 mm (5.5 in)
1944	75.2 mm (3.0 in)
1945	249.0 mm (9.8 in)
1946	155.2 mm (6.1 in)
1947	143.3 mm (5.6 in)
1948	115.1 mm (4.5 in)
1949	89.8 mm (3.5 in)
1950	97.7 mm (3.8 in)
1951	113.0 mm (4.4 in)
1952	91.7 mm (3.6 in)
1953	98.1 mm (3.9 in)
1954	126.8 mm (5.0 in)
1955	177.1 mm (7.0 in)
1956	144.5 mm (5.7 in)
1957	145.8 mm (5.7 in)
1958	166.7 mm (6.6 in)
1959	96.7 mm (3.8 in)
1960	87.5 mm (3.4 in)
1961	98.0 mm (3.9 in)
1962	137.5 mm (5.4 in)
1963	199.1 mm (7.8 in)
1964	179.6 mm (7.1 in)
1965	139.5 mm (5.5 in)
1966	148.7 mm (5.9 in)
1967	139.3 mm (5.5 in)
1968	125.1 mm (4.9 in)
1969	97.0 mm (3.8 in)
1970	132.8 mm (5.2 in)
1971	82.6 mm (3.3 in)
1972	120.9 mm (4.8 in)
1973	111.3 mm (4.4 in)
1974	119.7 mm (4.7 in)
1975	98.5 mm (3.9 in)
1976	86.2 mm (3.4 in)
1977	117.2 mm (4.6 in)
1978	191.6 mm (7.5 in)
1979	75.1 mm (3.0 in)
1980	92.6 mm (3.6 in)
1981	148.0 mm (5.8 in)
1982	72.0 mm (2.8 in)
1983	128.0 mm (5.0 in)
1984	71.4 mm (2.8 in)
1985	80.8 mm (3.2 in)
1986	135.7 mm (5.3 in)
1987	89.6 mm (3.5 in)
1988	121.2 mm (4.8 in)
1989	73.4 mm (2.9 in)
1990	118.2 mm (4.7 in)
1991	100.0 mm (3.9 in)
1992	99.5 mm (3.9 in)
1993	91.0 mm (3.6 in)
1994	105.2 mm (4.1 in)
1995	125.0 mm (4.9 in)
1996	214.7 mm (8.5 in)
1997	100.6 mm (4.0 in)
1998	118.2 mm (4.7 in)
1999	74.4 mm (2.9 in)
2000	126.0 mm (5.0 in)
2001	178.8 mm (7.0 in)
2002	60.4 mm (2.4 in)
2003	115.4 mm (4.5 in)
2004	86.2 mm (3.4 in)
2005	120.7 mm (4.8 in)
2006	93.6 mm (3.7 in)
2007	93.2 mm (3.7 in)
2008	104.0 mm (4.1 in)
2009	98.8 mm (3.9 in)
2010	107.8 mm (4.2 in)
2011	110.0 mm (4.3 in)
2012	82.4 mm (3.2 in)
2013	104.0 mm (4.1 in)
2014	95.0 mm (3.7 in)
2015	70.0 mm (2.8 in)
2016	33.0 mm (1.3 in)
2019	7.0 mm (0.28 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mundaring Weir, 1900 to 2019. The record is 105 days in 2004, marked on the chart; the median year is 43 days.

Longest dry spell (CDD) at Mundaring Weir by year
Year	Longest dry spell (CDD)
1900	28 days
1902	31 days
1903	28 days
1905	31 days
1906	30 days
1907	50 days
1908	38 days
1909	46 days
1910	70 days
1911	84 days
1912	73 days
1913	48 days
1914	40 days
1915	30 days
1916	29 days
1917	40 days
1918	37 days
1919	29 days
1920	67 days
1921	41 days
1922	24 days
1923	59 days
1924	45 days
1925	38 days
1926	34 days
1927	54 days
1928	56 days
1929	35 days
1930	60 days
1931	63 days
1932	68 days
1933	47 days
1934	26 days
1935	24 days
1936	61 days
1937	41 days
1938	52 days
1939	52 days
1940	30 days
1941	57 days
1942	59 days
1943	35 days
1944	69 days
1945	28 days
1946	31 days
1947	27 days
1948	76 days
1949	34 days
1950	101 days
1951	34 days
1952	43 days
1953	41 days
1954	46 days
1955	38 days
1956	59 days
1957	72 days
1958	66 days
1959	32 days
1960	42 days
1961	31 days
1962	35 days
1963	29 days
1964	54 days
1965	41 days
1966	49 days
1967	44 days
1968	43 days
1969	47 days
1970	51 days
1971	35 days
1972	61 days
1973	69 days
1974	37 days
1975	33 days
1976	32 days
1977	35 days
1978	45 days
1979	51 days
1980	40 days
1981	48 days
1982	40 days
1983	41 days
1984	52 days
1985	42 days
1986	29 days
1987	47 days
1988	20 days
1989	41 days
1990	16 days
1991	53 days
1992	30 days
1993	40 days
1994	90 days
1995	53 days
1996	40 days
1997	39 days
1998	43 days
1999	43 days
2000	46 days
2001	49 days
2002	61 days
2003	34 days
2004	105 days
2005	61 days
2006	29 days
2007	46 days
2008	37 days
2009	37 days
2010	81 days
2011	53 days
2012	59 days
2013	46 days
2014	52 days
2015	37 days
2016	53 days
2019	35 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

108 years, 1907 to 2015

A day with at least 55.3 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 137.6 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Mundaring Weir: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	55.3 mm (2.2 in)
5 years	72.5 mm (2.9 in)
10 years	85.6 mm (3.4 in)
25 years	104.4 mm (4.1 in)
50 years	120.2 mm (4.7 in)
100 years	137.6 mm (5.4 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 108 years of values from 1907 to 2015.

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: 147.0 mm (5.8 in) in 2001; 116.8 mm (4.6 in) in 1934; 115.0 mm (4.5 in) in 1990.

Download the Data

Data for Mundaring Weir standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mundaring Weir 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 2026-10-13 (13 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