Isis Downs Weather Records (ASN00036025)

Record envelope, standing records and threshold days for Isis Downs (ASN00036025), Australia, with 137 years of record.

Key Facts for Isis Downs

Isis Downs (ASN00036025) is a weather station in Australia at -24.22 latitude and 143.63 longitude, 200 m (656 ft) above sea level.
The station reports from 1888 to 2024, 137 years of record.
0 records set at Isis Downs still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Isis Downs set a daily record precipitation of 77.0 mm (3.0 in) on 24 March 2024.

About the Station

Location: Australia, -24.22 latitude, 143.63 longitude.
Elevation: 200 m (656 ft).
Period of record: 1888 to 2024, 137 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 Isis Downs. 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 Isis Downs, 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 Isis Downs still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Isis Downs between 18 January 1950 and 18 January 1950. Each dot is a new record.

Wettest Day of Each Month

Jan: 183.4 mm (7.2 in)

The wettest day on record for each calendar month at Isis Downs. The most was 183.4 mm (7.2 in) on 18 January 1950.

Record daily precipitation for each month at Isis Downs
Month	Record daily precipitation (mm)	Date
Jan	183.4 mm (7.2 in)	18 January 1950
Feb	133.9 mm (5.3 in)	3 February 1940
Mar	109.0 mm (4.3 in)	15 March 1996
Apr	135.0 mm (5.3 in)	20 April 1990
May	108.5 mm (4.3 in)	26 May 1942
Jun	113.8 mm (4.5 in)	6 June 1990
Jul	67.6 mm (2.7 in)	25 July 1950
Aug	52.0 mm (2.0 in)	30 August 2022
Sep	62.0 mm (2.4 in)	24 September 1917
Oct	77.7 mm (3.1 in)	21 October 1920
Nov	67.5 mm (2.7 in)	7 November 1985
Dec	124.2 mm (4.9 in)	26 December 1971

Latest Records

Latest records at Isis Downs
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 March 2024	Isis Downs, AU	daily rain	77.0 mm (3.0 in)	50.8 mm (2.0 in)	48 years	48 of 100 (Notable)
4 July 2023	Isis Downs, AU	daily rain	33.0 mm (1.3 in)	7.1 mm (0.28 in)	86 years	40 of 100 (Notable)
12 January 2023	Isis Downs, AU	daily rain	47.0 mm (1.9 in)	17.3 mm (0.7 in)	72 years	41 of 100 (Notable)
6 October 2022	Isis Downs, AU	daily rain	26.0 mm (1.0 in)	11.3 mm (0.4 in)	68 years	40 of 100 (Notable)
8 September 2022	Isis Downs, AU	daily rain	16.0 mm (0.6 in)	9.1 mm (0.36 in)	96 years	20 of 100 (Routine)
30 August 2022	Isis Downs, AU	monthly rain	52.0 mm (2.0 in)	3.7 mm (0.15 in)	75 years	46 of 100 (Notable)
17 July 2022	Isis Downs, AU	daily rain	15.0 mm (0.6 in)	11.4 mm (0.4 in)	48 years	20 of 100 (Routine)
7 September 2014	Isis Downs, AU	daily rain	9.0 mm (0.35 in)	0.5 mm (0.02 in)	36 years	20 of 100 (Routine)
24 August 2003	Isis Downs, AU	daily rain	11.0 mm (0.4 in)	2.0 mm (0.08 in)	28 years	20 of 100 (Routine)
8 February 2003	Isis Downs, AU	daily rain	65.0 mm (2.6 in)	11.4 mm (0.4 in)	33 years	26 of 100 (Routine)
15 November 2001	Isis Downs, AU	daily rain	24.0 mm (0.9 in)	11.6 mm (0.5 in)	60 years	20 of 100 (Routine)
10 November 2001	Isis Downs, AU	daily rain	20.0 mm (0.8 in)	6.5 mm (0.26 in)	76 years	20 of 100 (Routine)
5 February 2001	Isis Downs, AU	daily rain	27.0 mm (1.1 in)	0.8 mm (0.03 in)	82 years	34 of 100 (Routine)
16 December 2000	Isis Downs, AU	daily rain	52.0 mm (2.0 in)	36.0 mm (1.4 in)	8 years	38 of 100 (Notable)
9 November 2000	Isis Downs, AU	daily rain	27.0 mm (1.1 in)	21.7 mm (0.9 in)	67 years	49 of 100 (Notable)
23 October 2000	Isis Downs, AU	daily rain	29.0 mm (1.1 in)	21.4 mm (0.8 in)	84 years	55 of 100 (Notable)
18 June 2000	Isis Downs, AU	daily rain	4.2 mm (0.17 in)	2.4 mm (0.09 in)	75 years	20 of 100 (Routine)
4 May 2000	Isis Downs, AU	daily rain	25.0 mm (1.0 in)	15.6 mm (0.6 in)	64 years	38 of 100 (Notable)
3 May 2000	Isis Downs, AU	daily rain	17.0 mm (0.7 in)	14.0 mm (0.6 in)	5 years	19 of 100 (Routine)
22 February 2000	Isis Downs, AU	daily rain	25.0 mm (1.0 in)	2.9 mm (0.11 in)	50 years	26 of 100 (Routine)

Extremes by Year

1888 to 2024

Yearly extremes at Isis Downs: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	183.4 mm (7.2 in)	1950	56.1 mm (2.2 in)	101
Wettest five days (Rx5day)	240.3 mm (9.5 in)	1950	87.9 mm (3.5 in)	101
Longest dry spell (CDD)	217 days	1965	69 days	101

Wettest day (Rx1day)

The wettest day of the year at Isis Downs, 1888 to 2024. The record is 183.4 mm (7.2 in) in 1950, marked on the chart; the median year is 56.1 mm (2.2 in).

Wettest day (Rx1day) at Isis Downs by year
Year	Wettest day (Rx1day)
1888	0.0 mm (0.00 in)
1889	0.0 mm (0.00 in)
1894	77.0 mm (3.0 in)
1895	0.0 mm (0.00 in)
1896	14.0 mm (0.6 in)
1897	3.6 mm (0.14 in)
1898	0.0 mm (0.00 in)
1899	9.1 mm (0.36 in)
1900	51.6 mm (2.0 in)
1901	47.0 mm (1.9 in)
1902	28.4 mm (1.1 in)
1915	45.2 mm (1.8 in)
1916	63.8 mm (2.5 in)
1917	62.0 mm (2.4 in)
1918	57.4 mm (2.3 in)
1919	49.5 mm (1.9 in)
1920	77.7 mm (3.1 in)
1921	65.0 mm (2.6 in)
1922	106.9 mm (4.2 in)
1923	68.1 mm (2.7 in)
1924	74.7 mm (2.9 in)
1925	101.1 mm (4.0 in)
1926	40.6 mm (1.6 in)
1927	56.6 mm (2.2 in)
1928	59.2 mm (2.3 in)
1929	48.8 mm (1.9 in)
1930	56.1 mm (2.2 in)
1931	72.1 mm (2.8 in)
1932	45.5 mm (1.8 in)
1933	54.9 mm (2.2 in)
1934	48.5 mm (1.9 in)
1935	43.2 mm (1.7 in)
1936	54.4 mm (2.1 in)
1937	91.2 mm (3.6 in)
1938	47.2 mm (1.9 in)
1939	35.8 mm (1.4 in)
1940	133.9 mm (5.3 in)
1941	110.2 mm (4.3 in)
1942	108.5 mm (4.3 in)
1943	45.0 mm (1.8 in)
1944	61.0 mm (2.4 in)
1945	53.1 mm (2.1 in)
1946	35.1 mm (1.4 in)
1947	86.4 mm (3.4 in)
1948	33.5 mm (1.3 in)
1949	94.0 mm (3.7 in)
1950	183.4 mm (7.2 in)
1951	47.5 mm (1.9 in)
1952	56.1 mm (2.2 in)
1953	62.2 mm (2.4 in)
1954	85.9 mm (3.4 in)
1955	106.2 mm (4.2 in)
1956	55.6 mm (2.2 in)
1957	37.1 mm (1.5 in)
1958	41.4 mm (1.6 in)
1959	108.0 mm (4.3 in)
1960	46.5 mm (1.8 in)
1961	93.7 mm (3.7 in)
1962	52.1 mm (2.1 in)
1963	76.2 mm (3.0 in)
1964	54.4 mm (2.1 in)
1965	102.6 mm (4.0 in)
1966	64.8 mm (2.6 in)
1967	67.6 mm (2.7 in)
1968	75.2 mm (3.0 in)
1969	69.9 mm (2.8 in)
1970	30.2 mm (1.2 in)
1971	124.2 mm (4.9 in)
1972	39.1 mm (1.5 in)
1973	56.6 mm (2.2 in)
1974	78.0 mm (3.1 in)
1975	59.2 mm (2.3 in)
1976	44.0 mm (1.7 in)
1977	95.8 mm (3.8 in)
1978	62.0 mm (2.4 in)
1979	26.2 mm (1.0 in)
1983	35.0 mm (1.4 in)
1984	91.2 mm (3.6 in)
1985	67.5 mm (2.7 in)
1986	27.5 mm (1.1 in)
1987	44.5 mm (1.8 in)
1988	47.5 mm (1.9 in)
1989	91.0 mm (3.6 in)
1990	135.0 mm (5.3 in)
1991	41.3 mm (1.6 in)
1992	25.5 mm (1.0 in)
1993	112.5 mm (4.4 in)
1994	57.5 mm (2.3 in)
1995	32.0 mm (1.3 in)
1996	109.0 mm (4.3 in)
1997	62.5 mm (2.5 in)
1998	103.0 mm (4.1 in)
1999	124.0 mm (4.9 in)
2000	52.0 mm (2.0 in)
2001	55.0 mm (2.2 in)
2002	37.0 mm (1.5 in)
2003	65.0 mm (2.6 in)
2014	12.0 mm (0.5 in)
2022	52.0 mm (2.0 in)
2023	47.0 mm (1.9 in)
2024	77.0 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Isis Downs, 1888 to 2024. The record is 240.3 mm (9.5 in) in 1950, marked on the chart; the median year is 87.9 mm (3.5 in).

Wettest five days (Rx5day) at Isis Downs by year
Year	Wettest five days (Rx5day)
1888	0.0 mm (0.00 in)
1889	0.0 mm (0.00 in)
1894	109.3 mm (4.3 in)
1895	0.0 mm (0.00 in)
1896	14.0 mm (0.6 in)
1897	3.6 mm (0.14 in)
1898	0.0 mm (0.00 in)
1899	9.1 mm (0.36 in)
1900	51.6 mm (2.0 in)
1901	47.0 mm (1.9 in)
1902	45.7 mm (1.8 in)
1915	70.8 mm (2.8 in)
1916	132.1 mm (5.2 in)
1917	104.5 mm (4.1 in)
1918	114.1 mm (4.5 in)
1919	72.4 mm (2.9 in)
1920	105.5 mm (4.2 in)
1921	78.2 mm (3.1 in)
1922	146.8 mm (5.8 in)
1923	85.4 mm (3.4 in)
1924	118.2 mm (4.7 in)
1925	165.3 mm (6.5 in)
1926	74.1 mm (2.9 in)
1927	76.9 mm (3.0 in)
1928	79.5 mm (3.1 in)
1929	77.5 mm (3.1 in)
1930	126.1 mm (5.0 in)
1931	132.3 mm (5.2 in)
1932	86.7 mm (3.4 in)
1933	102.9 mm (4.1 in)
1934	87.9 mm (3.5 in)
1935	59.0 mm (2.3 in)
1936	170.2 mm (6.7 in)
1937	153.4 mm (6.0 in)
1938	78.5 mm (3.1 in)
1939	90.9 mm (3.6 in)
1940	212.4 mm (8.4 in)
1941	139.9 mm (5.5 in)
1942	114.6 mm (4.5 in)
1943	68.6 mm (2.7 in)
1944	125.0 mm (4.9 in)
1945	75.5 mm (3.0 in)
1946	46.5 mm (1.8 in)
1947	117.4 mm (4.6 in)
1948	43.2 mm (1.7 in)
1949	149.9 mm (5.9 in)
1950	240.3 mm (9.5 in)
1951	88.1 mm (3.5 in)
1952	61.9 mm (2.4 in)
1953	137.6 mm (5.4 in)
1954	134.6 mm (5.3 in)
1955	211.9 mm (8.3 in)
1956	83.9 mm (3.3 in)
1957	66.2 mm (2.6 in)
1958	61.7 mm (2.4 in)
1959	116.6 mm (4.6 in)
1960	88.6 mm (3.5 in)
1961	110.7 mm (4.4 in)
1962	93.5 mm (3.7 in)
1963	198.8 mm (7.8 in)
1964	87.2 mm (3.4 in)
1965	152.9 mm (6.0 in)
1966	101.8 mm (4.0 in)
1967	77.5 mm (3.1 in)
1968	93.4 mm (3.7 in)
1969	78.5 mm (3.1 in)
1970	46.2 mm (1.8 in)
1971	160.5 mm (6.3 in)
1972	51.8 mm (2.0 in)
1973	80.1 mm (3.2 in)
1974	115.6 mm (4.6 in)
1975	76.0 mm (3.0 in)
1976	91.0 mm (3.6 in)
1977	152.4 mm (6.0 in)
1978	108.0 mm (4.3 in)
1979	53.8 mm (2.1 in)
1983	38.0 mm (1.5 in)
1984	127.4 mm (5.0 in)
1985	77.0 mm (3.0 in)
1986	30.5 mm (1.2 in)
1987	63.0 mm (2.5 in)
1988	75.0 mm (3.0 in)
1989	105.5 mm (4.2 in)
1990	199.8 mm (7.9 in)
1991	81.3 mm (3.2 in)
1992	81.9 mm (3.2 in)
1993	152.5 mm (6.0 in)
1994	117.5 mm (4.6 in)
1995	55.0 mm (2.2 in)
1996	109.0 mm (4.3 in)
1997	124.5 mm (4.9 in)
1998	103.0 mm (4.1 in)
1999	217.5 mm (8.6 in)
2000	77.0 mm (3.0 in)
2001	97.0 mm (3.8 in)
2002	73.0 mm (2.9 in)
2003	121.0 mm (4.8 in)
2014	12.0 mm (0.5 in)
2022	68.0 mm (2.7 in)
2023	56.0 mm (2.2 in)
2024	93.0 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Isis Downs, 1888 to 2024. The record is 217 days in 1965, marked on the chart; the median year is 69 days.

Longest dry spell (CDD) at Isis Downs by year
Year	Longest dry spell (CDD)
1888	153 days
1889	31 days
1894	59 days
1895	92 days
1896	56 days
1897	62 days
1898	92 days
1899	55 days
1900	69 days
1901	31 days
1902	27 days
1915	73 days
1916	74 days
1917	92 days
1918	74 days
1919	101 days
1920	39 days
1921	42 days
1922	85 days
1923	54 days
1924	65 days
1925	58 days
1926	62 days
1927	115 days
1928	110 days
1929	124 days
1930	41 days
1931	51 days
1932	137 days
1933	48 days
1934	60 days
1935	54 days
1936	55 days
1937	87 days
1938	60 days
1939	77 days
1940	82 days
1941	118 days
1942	55 days
1943	82 days
1944	45 days
1945	59 days
1946	137 days
1947	62 days
1948	90 days
1949	99 days
1950	61 days
1951	73 days
1952	48 days
1953	95 days
1954	47 days
1955	51 days
1956	61 days
1957	70 days
1958	58 days
1959	56 days
1960	53 days
1961	79 days
1962	53 days
1963	74 days
1964	99 days
1965	217 days
1966	98 days
1967	88 days
1968	76 days
1969	89 days
1970	141 days
1971	47 days
1972	85 days
1973	33 days
1974	57 days
1975	45 days
1976	44 days
1977	69 days
1978	47 days
1979	53 days
1983	30 days
1984	29 days
1985	83 days
1986	88 days
1987	101 days
1988	77 days
1989	141 days
1990	135 days
1991	113 days
1992	82 days
1993	75 days
1994	130 days
1995	103 days
1996	40 days
1997	73 days
1998	43 days
1999	110 days
2000	64 days
2001	86 days
2002	174 days
2003	59 days
2014	22 days
2022	43 days
2023	144 days
2024	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

84 years, 1900 to 2023

A day with at least 61.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 175.8 mm (6.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Isis Downs: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	61.0 mm (2.4 in)
5 years	86.6 mm (3.4 in)
10 years	105.4 mm (4.1 in)
25 years	131.6 mm (5.2 in)
50 years	152.9 mm (6.0 in)
100 years	175.8 mm (6.9 in)	Longer than the 84 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, 84 years of values from 1900 to 2023.

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: 183.4 mm (7.2 in) in 1950; 135.0 mm (5.3 in) in 1990; 133.9 mm (5.3 in) in 1940.

Download the Data

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