Hermidale Tank Weather Records (ASN00051026)

Record envelope, standing records and threshold days for Hermidale Tank (ASN00051026), Australia, with 119 years of record.

Key Facts for Hermidale Tank

Hermidale Tank (ASN00051026) is a weather station in Australia at -31.56 latitude and 146.72 longitude, 215 m (705 ft) above sea level.
The station reports from 1905 to 2023, 119 years of record.
0 records set at Hermidale Tank still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Hermidale Tank set a daily record precipitation of 11.0 mm (0.4 in) on 29 April 2023.

About the Station

Location: Australia, -31.56 latitude, 146.72 longitude.
Elevation: 215 m (705 ft).
Period of record: 1905 to 2023, 119 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 Hermidale Tank. 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 Hermidale Tank, 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 Hermidale Tank still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Hermidale Tank between 24 February 1955 and 24 February 1955. Each dot is a new record.

Wettest Day of Each Month

Feb: 205.2 mm (8.1 in)

The wettest day on record for each calendar month at Hermidale Tank. The most was 205.2 mm (8.1 in) on 24 February 1955.

Record daily precipitation for each month at Hermidale Tank
Month	Record daily precipitation (mm)	Date
Jan	99.1 mm (3.9 in)	26 January 1907
Feb	205.2 mm (8.1 in)	24 February 1955
Mar	146.0 mm (5.7 in)	21 March 1983
Apr	102.0 mm (4.0 in)	8 April 1984
May	76.0 mm (3.0 in)	28 May 1977
Jun	65.0 mm (2.6 in)	17 June 2015
Jul	45.0 mm (1.8 in)	31 July 2010
Aug	46.0 mm (1.8 in)	1 August 1960
Sep	54.0 mm (2.1 in)	2 September 1997
Oct	63.5 mm (2.5 in)	11 October 1970
Nov	86.4 mm (3.4 in)	18 November 1960
Dec	132.8 mm (5.2 in)	30 December 1962

Latest Records

Latest records at Hermidale Tank
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 April 2023	Hermidale Tank, AU	daily rain	11.0 mm (0.4 in)	2.1 mm (0.08 in)	92 years	20 of 100 (Routine)
14 October 2022	Hermidale Tank, AU	daily rain	23.0 mm (0.9 in)	5.0 mm (0.20 in)	12 years	19 of 100 (Routine)
9 October 2022	Hermidale Tank, AU	daily rain	27.0 mm (1.1 in)	7.9 mm (0.31 in)	67 years	39 of 100 (Notable)
8 October 2022	Hermidale Tank, AU	daily rain	22.0 mm (0.9 in)	10.6 mm (0.4 in)	101 years	20 of 100 (Routine)
6 October 2022	Hermidale Tank, AU	daily rain	54.0 mm (2.1 in)	30.2 mm (1.2 in)	44 years	59 of 100 (Notable)
5 August 2022	Hermidale Tank, AU	daily rain	25.0 mm (1.0 in)	3.4 mm (0.13 in)	24 years	21 of 100 (Routine)
12 May 2022	Hermidale Tank, AU	daily rain	54.0 mm (2.1 in)	42.3 mm (1.7 in)	91 years	77 of 100 (Major)
27 April 2022	Hermidale Tank, AU	daily rain	32.0 mm (1.3 in)	3.6 mm (0.14 in)	19 years	18 of 100 (Routine)
22 February 2022	Hermidale Tank, AU	daily rain	48.0 mm (1.9 in)	3.5 mm (0.14 in)	88 years	37 of 100 (Notable)
8 January 2022	Hermidale Tank, AU	daily rain	25.0 mm (1.0 in)	4.9 mm (0.19 in)	86 years	38 of 100 (Notable)
19 December 2021	Hermidale Tank, AU	daily rain	18.0 mm (0.7 in)	2.3 mm (0.09 in)	51 years	20 of 100 (Routine)
26 November 2021	Hermidale Tank, AU	daily rain	34.0 mm (1.3 in)	13.7 mm (0.5 in)	59 years	41 of 100 (Notable)
30 September 2021	Hermidale Tank, AU	daily rain	37.0 mm (1.5 in)	19.0 mm (0.7 in)	35 years	45 of 100 (Notable)
13 February 2021	Hermidale Tank, AU	daily rain	35.0 mm (1.4 in)	14.4 mm (0.6 in)	21 years	23 of 100 (Routine)
6 February 2021	Hermidale Tank, AU	daily rain	43.0 mm (1.7 in)	24.2 mm (1.0 in)	108 years	52 of 100 (Notable)
25 October 2020	Hermidale Tank, AU	daily rain	22.0 mm (0.9 in)	2.4 mm (0.09 in)	86 years	20 of 100 (Routine)
4 April 2020	Hermidale Tank, AU	daily rain	49.0 mm (1.9 in)	19.8 mm (0.8 in)	64 years	45 of 100 (Notable)
30 March 2020	Hermidale Tank, AU	daily rain	28.0 mm (1.1 in)	5.1 mm (0.20 in)	73 years	34 of 100 (Routine)
4 March 2020	Hermidale Tank, AU	daily rain	39.0 mm (1.5 in)	12.1 mm (0.5 in)	79 years	41 of 100 (Notable)
12 January 2019	Hermidale Tank, AU	daily rain	32.0 mm (1.3 in)	3.3 mm (0.13 in)	83 years	36 of 100 (Notable)

Extremes by Year

1905 to 2023

Yearly extremes at Hermidale Tank: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	205.2 mm (8.1 in)	1955	48.3 mm (1.9 in)	119
Wettest five days (Rx5day)	276.8 mm (10.9 in)	1955	75.7 mm (3.0 in)	119
Longest dry spell (CDD)	93 days	1915	42 days	119

Wettest day (Rx1day)

The wettest day of the year at Hermidale Tank, 1905 to 2023. The record is 205.2 mm (8.1 in) in 1955, marked on the chart; the median year is 48.3 mm (1.9 in).

Wettest day (Rx1day) at Hermidale Tank by year
Year	Wettest day (Rx1day)
1905	29.2 mm (1.1 in)
1906	63.5 mm (2.5 in)
1907	99.1 mm (3.9 in)
1908	25.4 mm (1.0 in)
1909	39.4 mm (1.6 in)
1910	68.6 mm (2.7 in)
1911	53.3 mm (2.1 in)
1912	42.2 mm (1.7 in)
1913	22.1 mm (0.9 in)
1914	29.5 mm (1.2 in)
1915	45.5 mm (1.8 in)
1916	48.3 mm (1.9 in)
1917	42.2 mm (1.7 in)
1918	43.2 mm (1.7 in)
1919	45.2 mm (1.8 in)
1920	33.5 mm (1.3 in)
1921	40.9 mm (1.6 in)
1922	24.4 mm (1.0 in)
1923	54.9 mm (2.2 in)
1924	50.3 mm (2.0 in)
1925	44.5 mm (1.8 in)
1926	29.0 mm (1.1 in)
1927	59.7 mm (2.4 in)
1928	106.9 mm (4.2 in)
1929	24.4 mm (1.0 in)
1930	47.8 mm (1.9 in)
1931	70.1 mm (2.8 in)
1932	48.0 mm (1.9 in)
1933	31.0 mm (1.2 in)
1934	44.5 mm (1.8 in)
1935	21.6 mm (0.9 in)
1936	103.4 mm (4.1 in)
1937	21.6 mm (0.9 in)
1938	31.8 mm (1.3 in)
1939	53.1 mm (2.1 in)
1940	32.0 mm (1.3 in)
1941	67.1 mm (2.6 in)
1942	36.3 mm (1.4 in)
1943	46.0 mm (1.8 in)
1944	104.9 mm (4.1 in)
1945	87.6 mm (3.4 in)
1946	20.3 mm (0.8 in)
1947	52.1 mm (2.1 in)
1948	37.3 mm (1.5 in)
1949	51.8 mm (2.0 in)
1950	72.9 mm (2.9 in)
1951	24.4 mm (1.0 in)
1952	44.5 mm (1.8 in)
1953	37.1 mm (1.5 in)
1954	32.3 mm (1.3 in)
1955	205.2 mm (8.1 in)
1956	77.7 mm (3.1 in)
1957	16.5 mm (0.6 in)
1958	50.8 mm (2.0 in)
1959	61.0 mm (2.4 in)
1960	86.4 mm (3.4 in)
1961	50.8 mm (2.0 in)
1962	132.8 mm (5.2 in)
1963	56.9 mm (2.2 in)
1964	32.8 mm (1.3 in)
1965	24.6 mm (1.0 in)
1966	33.5 mm (1.3 in)
1967	40.1 mm (1.6 in)
1968	81.3 mm (3.2 in)
1969	57.2 mm (2.3 in)
1970	63.5 mm (2.5 in)
1971	64.3 mm (2.5 in)
1972	35.1 mm (1.4 in)
1973	45.7 mm (1.8 in)
1974	68.0 mm (2.7 in)
1975	55.4 mm (2.2 in)
1976	146.6 mm (5.8 in)
1977	76.0 mm (3.0 in)
1978	54.0 mm (2.1 in)
1979	34.0 mm (1.3 in)
1980	21.0 mm (0.8 in)
1981	54.0 mm (2.1 in)
1982	48.0 mm (1.9 in)
1983	146.0 mm (5.7 in)
1984	102.0 mm (4.0 in)
1985	91.0 mm (3.6 in)
1986	38.0 mm (1.5 in)
1987	77.0 mm (3.0 in)
1988	48.0 mm (1.9 in)
1989	63.0 mm (2.5 in)
1990	74.0 mm (2.9 in)
1991	69.0 mm (2.7 in)
1992	114.0 mm (4.5 in)
1993	28.6 mm (1.1 in)
1994	57.0 mm (2.2 in)
1995	91.0 mm (3.6 in)
1996	51.0 mm (2.0 in)
1997	54.0 mm (2.1 in)
1998	28.0 mm (1.1 in)
1999	51.0 mm (2.0 in)
2000	57.0 mm (2.2 in)
2001	21.0 mm (0.8 in)
2002	28.0 mm (1.1 in)
2003	32.0 mm (1.3 in)
2004	74.0 mm (2.9 in)
2005	60.0 mm (2.4 in)
2006	39.0 mm (1.5 in)
2007	58.2 mm (2.3 in)
2008	37.0 mm (1.5 in)
2009	65.0 mm (2.6 in)
2010	86.0 mm (3.4 in)
2011	26.0 mm (1.0 in)
2012	48.0 mm (1.9 in)
2013	47.0 mm (1.9 in)
2014	65.0 mm (2.6 in)
2015	65.0 mm (2.6 in)
2016	64.0 mm (2.5 in)
2017	32.0 mm (1.3 in)
2018	28.4 mm (1.1 in)
2019	32.0 mm (1.3 in)
2020	49.0 mm (1.9 in)
2021	43.0 mm (1.7 in)
2022	54.0 mm (2.1 in)
2023	24.0 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hermidale Tank, 1905 to 2023. The record is 276.8 mm (10.9 in) in 1955, marked on the chart; the median year is 75.7 mm (3.0 in).

Wettest five days (Rx5day) at Hermidale Tank by year
Year	Wettest five days (Rx5day)
1905	31.7 mm (1.2 in)
1906	132.1 mm (5.2 in)
1907	116.7 mm (4.6 in)
1908	37.1 mm (1.5 in)
1909	79.5 mm (3.1 in)
1910	82.6 mm (3.3 in)
1911	96.7 mm (3.8 in)
1912	48.3 mm (1.9 in)
1913	23.1 mm (0.9 in)
1914	34.3 mm (1.4 in)
1915	63.0 mm (2.5 in)
1916	60.2 mm (2.4 in)
1917	83.6 mm (3.3 in)
1918	48.5 mm (1.9 in)
1919	92.7 mm (3.6 in)
1920	79.0 mm (3.1 in)
1921	59.4 mm (2.3 in)
1922	33.3 mm (1.3 in)
1923	82.4 mm (3.2 in)
1924	69.4 mm (2.7 in)
1925	82.6 mm (3.3 in)
1926	68.6 mm (2.7 in)
1927	75.7 mm (3.0 in)
1928	166.9 mm (6.6 in)
1929	40.4 mm (1.6 in)
1930	77.2 mm (3.0 in)
1931	115.0 mm (4.5 in)
1932	52.0 mm (2.0 in)
1933	68.4 mm (2.7 in)
1934	63.8 mm (2.5 in)
1935	46.7 mm (1.8 in)
1936	127.0 mm (5.0 in)
1937	30.3 mm (1.2 in)
1938	33.3 mm (1.3 in)
1939	83.1 mm (3.3 in)
1940	62.5 mm (2.5 in)
1941	142.8 mm (5.6 in)
1942	58.6 mm (2.3 in)
1943	51.1 mm (2.0 in)
1944	104.9 mm (4.1 in)
1945	87.6 mm (3.4 in)
1946	34.0 mm (1.3 in)
1947	111.0 mm (4.4 in)
1948	61.4 mm (2.4 in)
1949	98.0 mm (3.9 in)
1950	110.0 mm (4.3 in)
1951	34.3 mm (1.4 in)
1952	57.2 mm (2.3 in)
1953	37.1 mm (1.5 in)
1954	49.8 mm (2.0 in)
1955	276.8 mm (10.9 in)
1956	83.5 mm (3.3 in)
1957	25.7 mm (1.0 in)
1958	51.8 mm (2.0 in)
1959	89.7 mm (3.5 in)
1960	103.4 mm (4.1 in)
1961	84.4 mm (3.3 in)
1962	151.1 mm (5.9 in)
1963	153.6 mm (6.0 in)
1964	38.3 mm (1.5 in)
1965	26.7 mm (1.1 in)
1966	53.8 mm (2.1 in)
1967	41.6 mm (1.6 in)
1968	119.4 mm (4.7 in)
1969	75.7 mm (3.0 in)
1970	63.5 mm (2.5 in)
1971	82.6 mm (3.3 in)
1972	59.0 mm (2.3 in)
1973	95.3 mm (3.8 in)
1974	140.2 mm (5.5 in)
1975	55.4 mm (2.2 in)
1976	166.6 mm (6.6 in)
1977	82.0 mm (3.2 in)
1978	90.0 mm (3.5 in)
1979	61.0 mm (2.4 in)
1980	36.2 mm (1.4 in)
1981	67.4 mm (2.7 in)
1982	68.0 mm (2.7 in)
1983	168.0 mm (6.6 in)
1984	102.0 mm (4.0 in)
1985	96.6 mm (3.8 in)
1986	38.2 mm (1.5 in)
1987	99.0 mm (3.9 in)
1988	100.0 mm (3.9 in)
1989	72.0 mm (2.8 in)
1990	137.3 mm (5.4 in)
1991	94.6 mm (3.7 in)
1992	158.4 mm (6.2 in)
1993	48.8 mm (1.9 in)
1994	59.0 mm (2.3 in)
1995	120.2 mm (4.7 in)
1996	152.4 mm (6.0 in)
1997	71.0 mm (2.8 in)
1998	49.0 mm (1.9 in)
1999	86.4 mm (3.4 in)
2000	105.0 mm (4.1 in)
2001	27.0 mm (1.1 in)
2002	45.6 mm (1.8 in)
2003	37.0 mm (1.5 in)
2004	132.6 mm (5.2 in)
2005	105.6 mm (4.2 in)
2006	39.0 mm (1.5 in)
2007	60.6 mm (2.4 in)
2008	82.4 mm (3.2 in)
2009	77.0 mm (3.0 in)
2010	138.0 mm (5.4 in)
2011	61.6 mm (2.4 in)
2012	98.8 mm (3.9 in)
2013	64.6 mm (2.5 in)
2014	92.0 mm (3.6 in)
2015	87.6 mm (3.4 in)
2016	74.0 mm (2.9 in)
2017	50.0 mm (2.0 in)
2018	43.0 mm (1.7 in)
2019	39.0 mm (1.5 in)
2020	77.0 mm (3.0 in)
2021	89.0 mm (3.5 in)
2022	111.0 mm (4.4 in)
2023	50.0 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hermidale Tank, 1905 to 2023. The record is 93 days in 1915, marked on the chart; the median year is 42 days.

Longest dry spell (CDD) at Hermidale Tank by year
Year	Longest dry spell (CDD)
1905	30 days
1906	37 days
1907	38 days
1908	63 days
1909	31 days
1910	66 days
1911	51 days
1912	90 days
1913	34 days
1914	45 days
1915	93 days
1916	38 days
1917	34 days
1918	43 days
1919	62 days
1920	85 days
1921	40 days
1922	40 days
1923	61 days
1924	35 days
1925	34 days
1926	58 days
1927	50 days
1928	62 days
1929	61 days
1930	24 days
1931	51 days
1932	31 days
1933	36 days
1934	39 days
1935	79 days
1936	52 days
1937	60 days
1938	45 days
1939	45 days
1940	64 days
1941	53 days
1942	48 days
1943	43 days
1944	41 days
1945	33 days
1946	62 days
1947	41 days
1948	41 days
1949	27 days
1950	39 days
1951	62 days
1952	47 days
1953	42 days
1954	50 days
1955	35 days
1956	32 days
1957	72 days
1958	28 days
1959	49 days
1960	30 days
1961	46 days
1962	42 days
1963	35 days
1964	39 days
1965	66 days
1966	38 days
1967	57 days
1968	42 days
1969	26 days
1970	48 days
1971	34 days
1972	62 days
1973	37 days
1974	36 days
1975	81 days
1976	68 days
1977	59 days
1978	39 days
1979	49 days
1980	43 days
1981	32 days
1982	45 days
1983	29 days
1984	56 days
1985	30 days
1986	52 days
1987	34 days
1988	24 days
1989	50 days
1990	38 days
1991	33 days
1992	34 days
1993	40 days
1994	26 days
1995	67 days
1996	55 days
1997	47 days
1998	64 days
1999	31 days
2000	26 days
2001	29 days
2002	65 days
2003	45 days
2004	32 days
2005	49 days
2006	53 days
2007	67 days
2008	30 days
2009	38 days
2010	20 days
2011	24 days
2012	78 days
2013	43 days
2014	69 days
2015	37 days
2016	30 days
2017	40 days
2018	38 days
2019	56 days
2020	23 days
2021	71 days
2022	28 days
2023	47 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

115 years, 1906 to 2022

A day with at least 48.1 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 159.8 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Hermidale Tank: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	48.1 mm (1.9 in)
5 years	71.5 mm (2.8 in)
10 years	89.3 mm (3.5 in)
25 years	114.8 mm (4.5 in)
50 years	136.2 mm (5.4 in)
100 years	159.8 mm (6.3 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 115 years of values from 1906 to 2022.

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: 205.2 mm (8.1 in) in 1955; 146.6 mm (5.8 in) in 1976; 146.0 mm (5.7 in) in 1983.

Download the Data

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