Lake Muir Weather Records (ASN00009568)

Record envelope, standing records and threshold days for Lake Muir (ASN00009568), Australia, with 62 years of record.

Key Facts for Lake Muir

Lake Muir (ASN00009568) is a weather station in Australia at -34.52 latitude and 116.62 longitude, n/a above sea level.
The station reports from 1907 to 1968, 62 years of record.
0 records set at Lake Muir still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Lake Muir set a daily record precipitation of 25.4 mm (1.0 in) on 15 July 1968.

About the Station

Location: Australia, -34.52 latitude, 116.62 longitude.
Elevation: n/a.
Period of record: 1907 to 1968, 62 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 Lake Muir. 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 Lake Muir, 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 Lake Muir still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Lake Muir between 22 January 1939 and 18 May 1942. Each dot is a new record.

When Lake Muir set new all-time records
Date	Kind	Detail
1939-01-22	Record daily precipitation	Record daily precipitation 109.2 mm (4.3 in)
1942-05-18	Record daily precipitation	Record daily precipitation 121.9 mm (4.8 in)

Wettest Day of Each Month

May: 121.9 mm (4.8 in)

The wettest day on record for each calendar month at Lake Muir. The most was 121.9 mm (4.8 in) on 18 May 1942.

Record daily precipitation for each month at Lake Muir
Month	Record daily precipitation (mm)	Date
Jan	109.2 mm (4.3 in)	22 January 1939
Feb	43.9 mm (1.7 in)	13 February 1916
Mar	75.2 mm (3.0 in)	26 March 1965
Apr	50.3 mm (2.0 in)	20 April 1928
May	121.9 mm (4.8 in)	18 May 1942
Jun	65.3 mm (2.6 in)	2 June 1918
Jul	57.4 mm (2.3 in)	19 July 1961
Aug	49.0 mm (1.9 in)	18 August 1933
Sep	45.2 mm (1.8 in)	18 September 1951
Oct	41.9 mm (1.6 in)	8 October 1937
Nov	44.2 mm (1.7 in)	16 November 1948
Dec	41.1 mm (1.6 in)	10 December 1921

Latest Records

Latest records at Lake Muir
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 July 1968	Lake Muir, AU	daily rain	25.4 mm (1.0 in)	1.8 mm (0.07 in)	1 year	8 of 100 (Routine)
9 December 1967	Lake Muir, AU	daily rain	33.5 mm (1.3 in)	29.7 mm (1.2 in)	25 years	53 of 100 (Notable)
17 November 1967	Lake Muir, AU	daily rain	15.5 mm (0.6 in)	1.5 mm (0.06 in)	45 years	20 of 100 (Routine)
15 July 1967	Lake Muir, AU	daily rain	23.6 mm (0.9 in)	3.5 mm (0.14 in)	29 years	18 of 100 (Routine)
27 May 1967	Lake Muir, AU	daily rain	27.7 mm (1.1 in)	6.1 mm (0.24 in)	44 years	25 of 100 (Routine)
10 May 1967	Lake Muir, AU	daily rain	20.6 mm (0.8 in)	5.4 mm (0.21 in)	1 year	11 of 100 (Routine)
27 December 1966	Lake Muir, AU	daily rain	20.3 mm (0.8 in)	8.4 mm (0.33 in)	16 years	20 of 100 (Routine)
23 October 1966	Lake Muir, AU	daily rain	31.8 mm (1.3 in)	24.9 mm (1.0 in)	24 years	53 of 100 (Notable)
20 December 1965	Lake Muir, AU	daily rain	19.1 mm (0.8 in)	4.6 mm (0.18 in)	48 years	20 of 100 (Routine)
1 December 1965	Lake Muir, AU	daily rain	23.9 mm (0.9 in)	3.3 mm (0.13 in)	30 years	19 of 100 (Routine)
4 November 1965	Lake Muir, AU	daily rain	25.4 mm (1.0 in)	12.2 mm (0.5 in)	12 years	31 of 100 (Routine)
6 October 1965	Lake Muir, AU	daily rain	29.7 mm (1.2 in)	11.9 mm (0.5 in)	40 years	36 of 100 (Notable)
14 September 1965	Lake Muir, AU	daily rain	35.1 mm (1.4 in)	8.4 mm (0.33 in)	18 years	23 of 100 (Routine)
20 August 1965	Lake Muir, AU	daily rain	32.0 mm (1.3 in)	1.0 mm (0.04 in)	44 years	19 of 100 (Routine)
1 June 1965	Lake Muir, AU	daily rain (Tie)	22.9 mm (0.9 in)	tie	48 years	4 of 100 (Routine)
11 May 1965	Lake Muir, AU	daily rain	26.4 mm (1.0 in)	0.7 mm (0.03 in)	32 years	14 of 100 (Routine)
10 May 1965	Lake Muir, AU	daily rain	15.2 mm (0.6 in)	3.0 mm (0.12 in)	34 years	18 of 100 (Routine)
27 March 1965	Lake Muir, AU	daily rain	43.7 mm (1.7 in)	7.6 mm (0.30 in)	22 years	19 of 100 (Routine)
26 March 1965	Lake Muir, AU	monthly rain	75.2 mm (3.0 in)	12.5 mm (0.5 in)	9 years	31 of 100 (Routine)
3 February 1965	Lake Muir, AU	daily rain	8.9 mm (0.35 in)	7.1 mm (0.28 in)	32 years	20 of 100 (Routine)

Extremes by Year

1907 to 1968

Yearly extremes at Lake Muir: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	121.9 mm (4.8 in)	1942	36.8 mm (1.4 in)	59
Wettest five days (Rx5day)	141.9 mm (5.6 in)	1939	72.1 mm (2.8 in)	59
Longest dry spell (CDD)	90 days	1924	36 days	59

Wettest day (Rx1day)

The wettest day of the year at Lake Muir, 1907 to 1968. The record is 121.9 mm (4.8 in) in 1942, marked on the chart; the median year is 36.8 mm (1.4 in).

Wettest day (Rx1day) at Lake Muir by year
Year	Wettest day (Rx1day)
1907	30.5 mm (1.2 in)
1908	27.9 mm (1.1 in)
1909	27.9 mm (1.1 in)
1910	38.1 mm (1.5 in)
1911	28.2 mm (1.1 in)
1912	31.2 mm (1.2 in)
1913	35.1 mm (1.4 in)
1914	33.3 mm (1.3 in)
1915	31.0 mm (1.2 in)
1916	43.9 mm (1.7 in)
1917	49.0 mm (1.9 in)
1918	65.3 mm (2.6 in)
1919	39.4 mm (1.6 in)
1920	44.2 mm (1.7 in)
1921	41.1 mm (1.6 in)
1922	32.5 mm (1.3 in)
1923	41.7 mm (1.6 in)
1924	35.3 mm (1.4 in)
1925	41.1 mm (1.6 in)
1926	40.6 mm (1.6 in)
1927	37.3 mm (1.5 in)
1928	50.3 mm (2.0 in)
1929	35.1 mm (1.4 in)
1930	33.0 mm (1.3 in)
1931	30.7 mm (1.2 in)
1932	31.2 mm (1.2 in)
1933	49.0 mm (1.9 in)
1934	43.4 mm (1.7 in)
1935	33.0 mm (1.3 in)
1936	34.5 mm (1.4 in)
1937	41.9 mm (1.6 in)
1938	57.9 mm (2.3 in)
1939	109.2 mm (4.3 in)
1940	32.5 mm (1.3 in)
1941	63.5 mm (2.5 in)
1942	121.9 mm (4.8 in)
1943	41.4 mm (1.6 in)
1944	34.0 mm (1.3 in)
1945	77.2 mm (3.0 in)
1946	40.6 mm (1.6 in)
1947	59.4 mm (2.3 in)
1948	44.2 mm (1.7 in)
1949	29.5 mm (1.2 in)
1950	33.3 mm (1.3 in)
1951	45.2 mm (1.8 in)
1952	25.9 mm (1.0 in)
1953	23.4 mm (0.9 in)
1954	33.0 mm (1.3 in)
1955	35.1 mm (1.4 in)
1956	62.7 mm (2.5 in)
1957	32.0 mm (1.3 in)
1961	57.4 mm (2.3 in)
1962	36.8 mm (1.4 in)
1963	37.8 mm (1.5 in)
1964	35.6 mm (1.4 in)
1965	75.2 mm (3.0 in)
1966	31.8 mm (1.3 in)
1967	33.5 mm (1.3 in)
1968	29.2 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lake Muir, 1907 to 1968. The record is 141.9 mm (5.6 in) in 1939, marked on the chart; the median year is 72.1 mm (2.8 in).

Wettest five days (Rx5day) at Lake Muir by year
Year	Wettest five days (Rx5day)
1907	73.4 mm (2.9 in)
1908	55.4 mm (2.2 in)
1909	76.1 mm (3.0 in)
1910	66.8 mm (2.6 in)
1911	49.8 mm (2.0 in)
1912	70.9 mm (2.8 in)
1913	83.7 mm (3.3 in)
1914	53.7 mm (2.1 in)
1915	71.3 mm (2.8 in)
1916	65.0 mm (2.6 in)
1917	124.0 mm (4.9 in)
1918	72.6 mm (2.9 in)
1919	64.0 mm (2.5 in)
1920	86.6 mm (3.4 in)
1921	65.8 mm (2.6 in)
1922	69.0 mm (2.7 in)
1923	84.8 mm (3.3 in)
1924	71.4 mm (2.8 in)
1925	52.0 mm (2.0 in)
1926	72.7 mm (2.9 in)
1927	58.7 mm (2.3 in)
1928	84.6 mm (3.3 in)
1929	68.0 mm (2.7 in)
1930	71.4 mm (2.8 in)
1931	80.4 mm (3.2 in)
1932	72.1 mm (2.8 in)
1933	96.0 mm (3.8 in)
1934	78.2 mm (3.1 in)
1935	67.6 mm (2.7 in)
1936	69.1 mm (2.7 in)
1937	81.0 mm (3.2 in)
1938	97.3 mm (3.8 in)
1939	141.9 mm (5.6 in)
1940	45.3 mm (1.8 in)
1941	88.5 mm (3.5 in)
1942	140.9 mm (5.5 in)
1943	67.8 mm (2.7 in)
1944	53.6 mm (2.1 in)
1945	97.3 mm (3.8 in)
1946	64.0 mm (2.5 in)
1947	88.1 mm (3.5 in)
1948	65.6 mm (2.6 in)
1949	81.8 mm (3.2 in)
1950	70.1 mm (2.8 in)
1951	88.1 mm (3.5 in)
1952	55.1 mm (2.2 in)
1953	43.7 mm (1.7 in)
1954	81.3 mm (3.2 in)
1955	78.3 mm (3.1 in)
1956	81.2 mm (3.2 in)
1957	40.9 mm (1.6 in)
1961	82.5 mm (3.2 in)
1962	84.8 mm (3.3 in)
1963	91.8 mm (3.6 in)
1964	99.6 mm (3.9 in)
1965	118.9 mm (4.7 in)
1966	51.0 mm (2.0 in)
1967	67.8 mm (2.7 in)
1968	63.7 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lake Muir, 1907 to 1968. The record is 90 days in 1924, marked on the chart; the median year is 36 days.

Longest dry spell (CDD) at Lake Muir by year
Year	Longest dry spell (CDD)
1907	20 days
1908	34 days
1909	21 days
1910	29 days
1911	54 days
1912	45 days
1913	33 days
1914	36 days
1915	48 days
1916	58 days
1917	44 days
1918	23 days
1919	36 days
1920	39 days
1921	29 days
1922	32 days
1923	79 days
1924	90 days
1925	26 days
1926	38 days
1927	42 days
1928	43 days
1929	19 days
1930	70 days
1931	43 days
1932	35 days
1933	40 days
1934	46 days
1935	29 days
1936	47 days
1937	34 days
1938	71 days
1939	31 days
1940	44 days
1941	32 days
1942	35 days
1943	22 days
1944	41 days
1945	22 days
1946	34 days
1947	23 days
1948	41 days
1949	31 days
1950	48 days
1951	26 days
1952	25 days
1953	20 days
1954	59 days
1955	24 days
1956	63 days
1957	62 days
1961	41 days
1962	42 days
1963	56 days
1964	88 days
1965	33 days
1966	15 days
1967	44 days
1968	8 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

49 years, 1908 to 1967

A day with at least 38.0 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 132.1 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Lake Muir: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	38.0 mm (1.5 in)
5 years	50.3 mm (2.0 in)
10 years	62.0 mm (2.4 in)
25 years	82.8 mm (3.3 in)
50 years	104.1 mm (4.1 in)	Longer than the 49 years of record
100 years	132.1 mm (5.2 in)	Longer than the 49 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 49 years of values from 1908 to 1967.

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: 121.9 mm (4.8 in) in 1942; 109.2 mm (4.3 in) in 1939; 77.2 mm (3.0 in) in 1945.

Download the Data

Data for Lake Muir standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lake Muir 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