Whyalla (Mullaquana) Weather Records (ASN00018058)

Record envelope, standing records and threshold days for Whyalla (Mullaquana) (ASN00018058), Australia, with 112 years of record.

Key Facts for Whyalla (Mullaquana)

Whyalla (Mullaquana) (ASN00018058) is a weather station in Australia at -33.21 latitude and 137.36 longitude, 51 m (167 ft) above sea level.
The station reports from 1910 to 2021, 112 years of record.
0 records set at Whyalla (Mullaquana) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Whyalla (Mullaquana) set a daily record precipitation of 22.0 mm (0.9 in) on 24 October 2020.

About the Station

Location: Australia, -33.21 latitude, 137.36 longitude.
Elevation: 51 m (167 ft).
Period of record: 1910 to 2021, 112 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 Whyalla (Mullaquana). 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 Whyalla (Mullaquana), 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 Whyalla (Mullaquana) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Whyalla (Mullaquana) between 18 February 1946 and 18 February 1946. Each dot is a new record.

Wettest Day of Each Month

Feb: 140.0 mm (5.5 in)

The wettest day on record for each calendar month at Whyalla (Mullaquana). The most was 140.0 mm (5.5 in) on 18 February 1946.

Record daily precipitation for each month at Whyalla (Mullaquana)
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	25 January 1993
Feb	140.0 mm (5.5 in)	18 February 1946
Mar	65.6 mm (2.6 in)	1 March 1992
Apr	89.2 mm (3.5 in)	26 April 1963
May	41.9 mm (1.6 in)	7 May 1974
Jun	99.0 mm (3.9 in)	18 June 2016
Jul	45.7 mm (1.8 in)	18 July 1916
Aug	27.9 mm (1.1 in)	26 August 1973
Sep	52.0 mm (2.0 in)	27 September 1979
Oct	59.7 mm (2.4 in)	23 October 1938
Nov	61.6 mm (2.4 in)	11 November 1998
Dec	44.8 mm (1.8 in)	8 December 2010

Latest Records

Latest records at Whyalla (Mullaquana)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 October 2020	Whyalla (Mullaquana), AU	daily rain	22.0 mm (0.9 in)	3.2 mm (0.13 in)	90 years	20 of 100 (Routine)
8 October 2020	Whyalla (Mullaquana), AU	daily rain (Tie)	10.4 mm (0.4 in)	tie	84 years	8 of 100 (Routine)
5 October 2020	Whyalla (Mullaquana), AU	daily rain	28.4 mm (1.1 in)	8.4 mm (0.33 in)	9 years	24 of 100 (Routine)
24 April 2020	Whyalla (Mullaquana), AU	daily rain	7.0 mm (0.28 in)	2.7 mm (0.11 in)	90 years	20 of 100 (Routine)
1 February 2020	Whyalla (Mullaquana), AU	daily rain	46.6 mm (1.8 in)	4.9 mm (0.19 in)	92 years	39 of 100 (Notable)
6 January 2020	Whyalla (Mullaquana), AU	daily rain	10.8 mm (0.4 in)	5.7 mm (0.22 in)	96 years	20 of 100 (Routine)
21 September 2019	Whyalla (Mullaquana), AU	daily rain	24.6 mm (1.0 in)	13.2 mm (0.5 in)	78 years	20 of 100 (Routine)
12 June 2019	Whyalla (Mullaquana), AU	daily rain	29.8 mm (1.2 in)	9.5 mm (0.37 in)	68 years	45 of 100 (Notable)
27 January 2019	Whyalla (Mullaquana), AU	daily rain	4.8 mm (0.19 in)	0.5 mm (0.02 in)	64 years	20 of 100 (Routine)
28 November 2018	Whyalla (Mullaquana), AU	daily rain	11.0 mm (0.4 in)	3.4 mm (0.13 in)	97 years	20 of 100 (Routine)
19 December 2017	Whyalla (Mullaquana), AU	daily rain	11.0 mm (0.4 in)	3.4 mm (0.13 in)	67 years	20 of 100 (Routine)
16 August 2017	Whyalla (Mullaquana), AU	daily rain	6.4 mm (0.25 in)	2.6 mm (0.10 in)	4 years	18 of 100 (Routine)
3 August 2017	Whyalla (Mullaquana), AU	daily rain	22.4 mm (0.9 in)	5.2 mm (0.20 in)	32 years	20 of 100 (Routine)
21 April 2017	Whyalla (Mullaquana), AU	daily rain (Tie)	9.6 mm (0.38 in)	tie	36 years	5 of 100 (Routine)
20 April 2017	Whyalla (Mullaquana), AU	daily rain	12.8 mm (0.5 in)	2.4 mm (0.09 in)	7 years	15 of 100 (Routine)
28 December 2016	Whyalla (Mullaquana), AU	daily rain	26.0 mm (1.0 in)	24.0 mm (0.9 in)	68 years	62 of 100 (Major)
27 December 2016	Whyalla (Mullaquana), AU	daily rain	20.6 mm (0.8 in)	7.9 mm (0.31 in)	97 years	20 of 100 (Routine)
29 September 2016	Whyalla (Mullaquana), AU	daily rain	16.8 mm (0.7 in)	6.4 mm (0.25 in)	84 years	20 of 100 (Routine)
19 June 2016	Whyalla (Mullaquana), AU	daily rain	21.4 mm (0.8 in)	14.8 mm (0.6 in)	50 years	20 of 100 (Routine)
18 June 2016	Whyalla (Mullaquana), AU	monthly rain	99.0 mm (3.9 in)	54.0 mm (2.1 in)	15 years	64 of 100 (Major)

Extremes by Year

1910 to 2021

Yearly extremes at Whyalla (Mullaquana): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	140.0 mm (5.5 in)	1946	30.2 mm (1.2 in)	106
Wettest five days (Rx5day)	204.5 mm (8.1 in)	1946	39.1 mm (1.5 in)	106
Longest dry spell (CDD)	99 days	1948	45 days	106

Wettest day (Rx1day)

The wettest day of the year at Whyalla (Mullaquana), 1910 to 2021. The record is 140.0 mm (5.5 in) in 1946, marked on the chart; the median year is 30.2 mm (1.2 in).

Wettest day (Rx1day) at Whyalla (Mullaquana) by year
Year	Wettest day (Rx1day)
1910	10.4 mm (0.4 in)
1911	0.0 mm (0.00 in)
1912	40.9 mm (1.6 in)
1913	21.6 mm (0.9 in)
1914	56.1 mm (2.2 in)
1915	20.3 mm (0.8 in)
1916	45.7 mm (1.8 in)
1917	32.3 mm (1.3 in)
1918	28.7 mm (1.1 in)
1919	59.4 mm (2.3 in)
1920	41.4 mm (1.6 in)
1921	86.9 mm (3.4 in)
1922	18.5 mm (0.7 in)
1923	13.2 mm (0.5 in)
1924	29.0 mm (1.1 in)
1925	39.4 mm (1.6 in)
1926	31.8 mm (1.3 in)
1927	30.5 mm (1.2 in)
1928	41.7 mm (1.6 in)
1929	8.9 mm (0.35 in)
1930	27.9 mm (1.1 in)
1931	14.2 mm (0.6 in)
1932	29.5 mm (1.2 in)
1933	30.5 mm (1.2 in)
1934	30.5 mm (1.2 in)
1935	14.2 mm (0.6 in)
1936	18.5 mm (0.7 in)
1937	43.2 mm (1.7 in)
1938	72.6 mm (2.9 in)
1939	39.1 mm (1.5 in)
1940	15.5 mm (0.6 in)
1941	35.1 mm (1.4 in)
1942	36.3 mm (1.4 in)
1943	13.2 mm (0.5 in)
1944	20.3 mm (0.8 in)
1945	17.5 mm (0.7 in)
1946	140.0 mm (5.5 in)
1947	31.8 mm (1.3 in)
1948	38.1 mm (1.5 in)
1949	30.5 mm (1.2 in)
1950	27.4 mm (1.1 in)
1951	20.3 mm (0.8 in)
1952	45.7 mm (1.8 in)
1953	18.3 mm (0.7 in)
1954	28.2 mm (1.1 in)
1955	29.5 mm (1.2 in)
1956	21.3 mm (0.8 in)
1963	89.2 mm (3.5 in)
1964	19.6 mm (0.8 in)
1965	20.3 mm (0.8 in)
1966	32.8 mm (1.3 in)
1967	46.5 mm (1.8 in)
1968	43.2 mm (1.7 in)
1969	20.1 mm (0.8 in)
1970	13.7 mm (0.5 in)
1971	25.7 mm (1.0 in)
1972	24.6 mm (1.0 in)
1973	85.3 mm (3.4 in)
1974	41.9 mm (1.6 in)
1975	19.2 mm (0.8 in)
1976	27.4 mm (1.1 in)
1977	14.4 mm (0.6 in)
1978	24.0 mm (0.9 in)
1979	112.5 mm (4.4 in)
1980	46.2 mm (1.8 in)
1981	14.2 mm (0.6 in)
1982	18.0 mm (0.7 in)
1983	32.4 mm (1.3 in)
1984	17.2 mm (0.7 in)
1985	15.6 mm (0.6 in)
1986	22.6 mm (0.9 in)
1987	23.0 mm (0.9 in)
1988	20.0 mm (0.8 in)
1989	47.8 mm (1.9 in)
1990	13.6 mm (0.5 in)
1991	38.6 mm (1.5 in)
1992	65.6 mm (2.6 in)
1993	55.4 mm (2.2 in)
1994	42.2 mm (1.7 in)
1995	36.2 mm (1.4 in)
1996	17.8 mm (0.7 in)
1997	47.4 mm (1.9 in)
1998	61.6 mm (2.4 in)
1999	34.4 mm (1.4 in)
2000	34.4 mm (1.4 in)
2001	45.0 mm (1.8 in)
2002	12.4 mm (0.5 in)
2003	35.0 mm (1.4 in)
2004	10.0 mm (0.4 in)
2005	28.0 mm (1.1 in)
2006	29.4 mm (1.2 in)
2007	34.2 mm (1.3 in)
2008	39.2 mm (1.5 in)
2009	28.6 mm (1.1 in)
2010	44.8 mm (1.8 in)
2011	40.0 mm (1.6 in)
2012	31.4 mm (1.2 in)
2013	25.8 mm (1.0 in)
2014	97.6 mm (3.8 in)
2015	48.4 mm (1.9 in)
2016	99.0 mm (3.9 in)
2017	22.4 mm (0.9 in)
2018	23.4 mm (0.9 in)
2019	29.8 mm (1.2 in)
2020	46.6 mm (1.8 in)
2021	10.0 mm (0.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Whyalla (Mullaquana), 1910 to 2021. The record is 204.5 mm (8.1 in) in 1946, marked on the chart; the median year is 39.1 mm (1.5 in).

Wettest five days (Rx5day) at Whyalla (Mullaquana) by year
Year	Wettest five days (Rx5day)
1910	17.0 mm (0.7 in)
1911	0.0 mm (0.00 in)
1912	40.9 mm (1.6 in)
1913	36.1 mm (1.4 in)
1914	65.3 mm (2.6 in)
1915	25.8 mm (1.0 in)
1916	49.5 mm (1.9 in)
1917	47.0 mm (1.9 in)
1918	29.7 mm (1.2 in)
1919	59.4 mm (2.3 in)
1920	42.5 mm (1.7 in)
1921	131.4 mm (5.2 in)
1922	27.4 mm (1.1 in)
1923	23.8 mm (0.9 in)
1924	29.0 mm (1.1 in)
1925	46.0 mm (1.8 in)
1926	70.9 mm (2.8 in)
1927	37.6 mm (1.5 in)
1928	45.8 mm (1.8 in)
1929	10.2 mm (0.4 in)
1930	54.6 mm (2.1 in)
1931	15.5 mm (0.6 in)
1932	50.8 mm (2.0 in)
1933	33.6 mm (1.3 in)
1934	36.1 mm (1.4 in)
1935	28.4 mm (1.1 in)
1936	27.9 mm (1.1 in)
1937	43.2 mm (1.7 in)
1938	78.4 mm (3.1 in)
1939	53.1 mm (2.1 in)
1940	21.6 mm (0.9 in)
1941	57.4 mm (2.3 in)
1942	36.3 mm (1.4 in)
1943	19.6 mm (0.8 in)
1944	29.2 mm (1.1 in)
1945	34.5 mm (1.4 in)
1946	204.5 mm (8.1 in)
1947	54.9 mm (2.2 in)
1948	43.1 mm (1.7 in)
1949	35.6 mm (1.4 in)
1950	32.5 mm (1.3 in)
1951	34.3 mm (1.4 in)
1952	48.7 mm (1.9 in)
1953	18.3 mm (0.7 in)
1954	36.8 mm (1.4 in)
1955	49.8 mm (2.0 in)
1956	28.9 mm (1.1 in)
1963	101.9 mm (4.0 in)
1964	27.7 mm (1.1 in)
1965	34.3 mm (1.4 in)
1966	93.0 mm (3.7 in)
1967	47.8 mm (1.9 in)
1968	46.8 mm (1.8 in)
1969	35.1 mm (1.4 in)
1970	23.3 mm (0.9 in)
1971	30.7 mm (1.2 in)
1972	43.9 mm (1.7 in)
1973	103.8 mm (4.1 in)
1974	113.6 mm (4.5 in)
1975	33.8 mm (1.3 in)
1976	62.5 mm (2.5 in)
1977	21.9 mm (0.9 in)
1978	39.1 mm (1.5 in)
1979	115.5 mm (4.5 in)
1980	46.8 mm (1.8 in)
1981	18.8 mm (0.7 in)
1982	19.6 mm (0.8 in)
1983	39.1 mm (1.5 in)
1984	36.1 mm (1.4 in)
1985	28.2 mm (1.1 in)
1986	28.6 mm (1.1 in)
1987	32.1 mm (1.3 in)
1988	32.2 mm (1.3 in)
1989	73.6 mm (2.9 in)
1990	23.2 mm (0.9 in)
1991	54.6 mm (2.1 in)
1992	68.8 mm (2.7 in)
1993	114.8 mm (4.5 in)
1994	76.0 mm (3.0 in)
1995	47.2 mm (1.9 in)
1996	23.4 mm (0.9 in)
1997	49.2 mm (1.9 in)
1998	67.6 mm (2.7 in)
1999	34.4 mm (1.4 in)
2000	34.4 mm (1.4 in)
2001	51.0 mm (2.0 in)
2002	22.2 mm (0.9 in)
2003	77.4 mm (3.0 in)
2004	14.6 mm (0.6 in)
2005	29.2 mm (1.1 in)
2006	33.6 mm (1.3 in)
2007	45.8 mm (1.8 in)
2008	48.4 mm (1.9 in)
2009	43.4 mm (1.7 in)
2010	59.8 mm (2.4 in)
2011	40.0 mm (1.6 in)
2012	51.8 mm (2.0 in)
2013	45.6 mm (1.8 in)
2014	108.8 mm (4.3 in)
2015	79.8 mm (3.1 in)
2016	136.8 mm (5.4 in)
2017	28.0 mm (1.1 in)
2018	31.2 mm (1.2 in)
2019	36.0 mm (1.4 in)
2020	50.0 mm (2.0 in)
2021	10.2 mm (0.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Whyalla (Mullaquana), 1910 to 2021. The record is 99 days in 1948, marked on the chart; the median year is 45 days.

Longest dry spell (CDD) at Whyalla (Mullaquana) by year
Year	Longest dry spell (CDD)
1910	26 days
1911	30 days
1912	55 days
1913	50 days
1914	41 days
1915	75 days
1916	55 days
1917	36 days
1918	61 days
1919	40 days
1920	49 days
1921	52 days
1922	45 days
1923	52 days
1924	52 days
1925	48 days
1926	51 days
1927	49 days
1928	71 days
1929	44 days
1930	47 days
1931	70 days
1932	35 days
1933	39 days
1934	52 days
1935	63 days
1936	39 days
1937	71 days
1938	68 days
1939	41 days
1940	53 days
1941	31 days
1942	45 days
1943	52 days
1944	62 days
1945	39 days
1946	35 days
1947	33 days
1948	99 days
1949	48 days
1950	34 days
1951	58 days
1952	55 days
1953	69 days
1954	63 days
1955	47 days
1956	66 days
1963	53 days
1964	38 days
1965	70 days
1966	30 days
1967	81 days
1968	26 days
1969	42 days
1970	40 days
1971	31 days
1972	46 days
1973	34 days
1974	27 days
1975	37 days
1976	59 days
1977	40 days
1978	60 days
1979	36 days
1980	52 days
1981	38 days
1982	71 days
1983	30 days
1984	79 days
1985	44 days
1986	57 days
1987	25 days
1988	77 days
1989	68 days
1990	31 days
1991	55 days
1992	34 days
1993	40 days
1994	55 days
1995	27 days
1996	37 days
1997	84 days
1998	33 days
1999	39 days
2000	41 days
2001	36 days
2002	39 days
2003	27 days
2004	46 days
2005	30 days
2006	55 days
2007	57 days
2008	33 days
2009	59 days
2010	24 days
2011	34 days
2012	40 days
2013	24 days
2014	50 days
2015	70 days
2016	27 days
2017	37 days
2018	26 days
2019	71 days
2020	26 days
2021	25 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

94 years, 1912 to 2020

A day with at least 29.6 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 115.5 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Whyalla (Mullaquana): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.6 mm (1.2 in)
5 years	46.0 mm (1.8 in)
10 years	59.1 mm (2.3 in)
25 years	78.8 mm (3.1 in)
50 years	95.9 mm (3.8 in)
100 years	115.5 mm (4.5 in)	Longer than the 94 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, 94 years of values from 1912 to 2020.

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: 140.0 mm (5.5 in) in 1946; 112.5 mm (4.4 in) in 1979; 89.2 mm (3.5 in) in 1963.

Download the Data

Data for Whyalla (Mullaquana) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Whyalla (Mullaquana) 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