Koppio Weather Records (ASN00018043)

Record envelope, standing records and threshold days for Koppio (ASN00018043), Australia, with 130 years of record.

Key Facts for Koppio

Koppio (ASN00018043) is a weather station in Australia at -34.41 latitude and 135.82 longitude, 173 m (568 ft) above sea level.
The station reports from 1897 to 2026, 130 years of record.
0 records set at Koppio still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Koppio set a daily record precipitation of 38.6 mm (1.5 in) on 25 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Australia, -34.41 latitude, 135.82 longitude.
Elevation: 173 m (568 ft).
Period of record: 1897 to 2026, 130 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 Koppio. 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 Koppio, 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 Koppio still stand.

Wettest Day of Each Month

Feb: 89.4 mm (3.5 in)

The wettest day on record for each calendar month at Koppio. The most was 89.4 mm (3.5 in) on 20 February 1938.

Record daily precipitation for each month at Koppio
Month	Record daily precipitation (mm)	Date
Jan	69.3 mm (2.7 in)	20 January 1933
Feb	89.4 mm (3.5 in)	20 February 1938
Mar	52.0 mm (2.0 in)	1 March 1983
Apr	64.0 mm (2.5 in)	3 April 1934
May	58.0 mm (2.3 in)	20 May 2003
Jun	65.0 mm (2.6 in)	13 June 2014
Jul	51.3 mm (2.0 in)	18 July 1916
Aug	39.1 mm (1.5 in)	9 August 1961
Sep	44.0 mm (1.7 in)	14 September 2010
Oct	65.0 mm (2.6 in)	21 October 1935
Nov	37.4 mm (1.5 in)	14 November 1979
Dec	57.9 mm (2.3 in)	3 December 1966

Latest Records

Latest records at Koppio
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 August 2026	Koppio, AU	daily rain (Provisional)	38.6 mm (1.5 in)	16.2 mm (0.6 in)	63 years	59 of 100 (Notable)
1 April 2026	Koppio, AU	daily rain	10.8 mm (0.4 in)	4.4 mm (0.17 in)	93 years	20 of 100 (Routine)
28 February 2026	Koppio, AU	daily rain	17.2 mm (0.7 in)	2.8 mm (0.11 in)	39 years	20 of 100 (Routine)
25 October 2025	Koppio, AU	daily rain	15.8 mm (0.6 in)	7.8 mm (0.31 in)	50 years	20 of 100 (Routine)
26 July 2025	Koppio, AU	daily rain	43.0 mm (1.7 in)	26.5 mm (1.0 in)	52 years	65 of 100 (Major)
10 July 2025	Koppio, AU	daily rain	21.8 mm (0.9 in)	0.6 mm (0.02 in)	36 years	20 of 100 (Routine)
24 November 2024	Koppio, AU	daily rain (Tie)	6.4 mm (0.25 in)	tie	53 years	6 of 100 (Routine)
20 June 2024	Koppio, AU	daily rain	22.6 mm (0.9 in)	5.8 mm (0.23 in)	12 years	20 of 100 (Routine)
26 January 2024	Koppio, AU	daily rain	12.2 mm (0.5 in)	7.9 mm (0.31 in)	86 years	20 of 100 (Routine)
11 December 2023	Koppio, AU	daily rain	32.4 mm (1.3 in)	13.9 mm (0.5 in)	85 years	53 of 100 (Notable)
29 January 2023	Koppio, AU	daily rain	7.3 mm (0.29 in)	2.9 mm (0.11 in)	16 years	18 of 100 (Routine)
13 November 2022	Koppio, AU	daily rain	19.4 mm (0.8 in)	6.7 mm (0.26 in)	92 years	20 of 100 (Routine)
4 October 2022	Koppio, AU	daily rain	22.0 mm (0.9 in)	8.5 mm (0.33 in)	104 years	20 of 100 (Routine)
23 August 2022	Koppio, AU	daily rain	23.6 mm (0.9 in)	5.8 mm (0.23 in)	71 years	20 of 100 (Routine)
5 August 2022	Koppio, AU	daily rain	38.0 mm (1.5 in)	15.8 mm (0.6 in)	19 years	46 of 100 (Notable)
30 May 2022	Koppio, AU	daily rain	29.0 mm (1.1 in)	11.2 mm (0.4 in)	100 years	57 of 100 (Notable)
15 April 2022	Koppio, AU	daily rain	12.4 mm (0.5 in)	3.3 mm (0.13 in)	65 years	20 of 100 (Routine)
17 March 2022	Koppio, AU	daily rain	10.5 mm (0.4 in)	1.5 mm (0.06 in)	20 years	18 of 100 (Routine)
16 February 2022	Koppio, AU	daily rain	29.8 mm (1.2 in)	18.1 mm (0.7 in)	103 years	58 of 100 (Notable)
27 January 2022	Koppio, AU	daily rain	36.6 mm (1.4 in)	21.6 mm (0.9 in)	40 years	47 of 100 (Notable)

Extremes by Year

1897 to 2026

Yearly extremes at Koppio: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	89.4 mm (3.5 in)	1938	29.4 mm (1.2 in)	117
Wettest five days (Rx5day)	110.2 mm (4.3 in)	1916	53.1 mm (2.1 in)	117
Longest dry spell (CDD)	76 days	1916	36 days	117

Wettest day (Rx1day)

The wettest day of the year at Koppio, 1897 to 2026. The record is 89.4 mm (3.5 in) in 1938, marked on the chart; the median year is 29.4 mm (1.2 in).

Wettest day (Rx1day) at Koppio by year
Year	Wettest day (Rx1day)
1897	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1907	0.0 mm (0.00 in)
1910	0.0 mm (0.00 in)
1911	0.0 mm (0.00 in)
1912	0.0 mm (0.00 in)
1913	0.0 mm (0.00 in)
1914	0.0 mm (0.00 in)
1915	0.0 mm (0.00 in)
1916	55.9 mm (2.2 in)
1917	30.5 mm (1.2 in)
1918	28.7 mm (1.1 in)
1919	22.9 mm (0.9 in)
1920	26.7 mm (1.1 in)
1921	28.7 mm (1.1 in)
1922	17.8 mm (0.7 in)
1923	31.8 mm (1.3 in)
1924	29.2 mm (1.1 in)
1925	34.3 mm (1.4 in)
1926	39.4 mm (1.6 in)
1927	29.7 mm (1.2 in)
1928	32.5 mm (1.3 in)
1929	29.2 mm (1.1 in)
1930	19.1 mm (0.8 in)
1931	21.6 mm (0.9 in)
1932	39.4 mm (1.6 in)
1933	69.3 mm (2.7 in)
1934	64.0 mm (2.5 in)
1935	65.0 mm (2.6 in)
1936	22.4 mm (0.9 in)
1937	21.3 mm (0.8 in)
1938	89.4 mm (3.5 in)
1939	34.0 mm (1.3 in)
1940	28.7 mm (1.1 in)
1941	34.3 mm (1.4 in)
1942	31.8 mm (1.3 in)
1943	22.1 mm (0.9 in)
1944	23.9 mm (0.9 in)
1945	40.6 mm (1.6 in)
1946	27.2 mm (1.1 in)
1947	33.8 mm (1.3 in)
1948	35.1 mm (1.4 in)
1949	29.2 mm (1.1 in)
1950	20.8 mm (0.8 in)
1951	26.2 mm (1.0 in)
1952	20.3 mm (0.8 in)
1953	22.9 mm (0.9 in)
1954	19.8 mm (0.8 in)
1955	56.1 mm (2.2 in)
1956	46.0 mm (1.8 in)
1957	22.4 mm (0.9 in)
1958	36.1 mm (1.4 in)
1959	17.8 mm (0.7 in)
1960	25.4 mm (1.0 in)
1961	39.1 mm (1.5 in)
1962	23.1 mm (0.9 in)
1963	26.7 mm (1.1 in)
1964	23.4 mm (0.9 in)
1965	24.4 mm (1.0 in)
1966	57.9 mm (2.3 in)
1967	36.1 mm (1.4 in)
1968	30.7 mm (1.2 in)
1969	41.7 mm (1.6 in)
1970	19.3 mm (0.8 in)
1971	34.0 mm (1.3 in)
1972	30.5 mm (1.2 in)
1973	43.7 mm (1.7 in)
1974	38.4 mm (1.5 in)
1975	33.0 mm (1.3 in)
1976	30.4 mm (1.2 in)
1977	37.0 mm (1.5 in)
1978	35.6 mm (1.4 in)
1979	42.6 mm (1.7 in)
1980	34.0 mm (1.3 in)
1981	27.4 mm (1.1 in)
1982	31.2 mm (1.2 in)
1983	52.0 mm (2.0 in)
1984	27.6 mm (1.1 in)
1985	29.4 mm (1.2 in)
1986	29.0 mm (1.1 in)
1987	33.0 mm (1.3 in)
1988	24.0 mm (0.9 in)
1989	38.2 mm (1.5 in)
1990	50.4 mm (2.0 in)
1991	21.6 mm (0.9 in)
1992	55.0 mm (2.2 in)
1993	23.8 mm (0.9 in)
1994	54.8 mm (2.2 in)
1995	53.0 mm (2.1 in)
1996	28.2 mm (1.1 in)
1997	34.8 mm (1.4 in)
1998	21.8 mm (0.9 in)
1999	32.0 mm (1.3 in)
2000	28.0 mm (1.1 in)
2001	24.0 mm (0.9 in)
2002	27.4 mm (1.1 in)
2003	58.0 mm (2.3 in)
2004	27.4 mm (1.1 in)
2005	35.0 mm (1.4 in)
2006	48.8 mm (1.9 in)
2007	29.0 mm (1.1 in)
2008	23.0 mm (0.9 in)
2009	21.0 mm (0.8 in)
2010	44.0 mm (1.7 in)
2011	50.8 mm (2.0 in)
2012	26.4 mm (1.0 in)
2013	37.6 mm (1.5 in)
2014	65.0 mm (2.6 in)
2020	32.4 mm (1.3 in)
2021	20.4 mm (0.8 in)
2022	43.0 mm (1.7 in)
2023	32.4 mm (1.3 in)
2024	22.6 mm (0.9 in)
2025	43.0 mm (1.7 in)
2026	38.6 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Koppio, 1897 to 2026. The record is 110.2 mm (4.3 in) in 1916, marked on the chart; the median year is 53.1 mm (2.1 in).

Wettest five days (Rx5day) at Koppio by year
Year	Wettest five days (Rx5day)
1897	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1907	0.0 mm (0.00 in)
1910	0.0 mm (0.00 in)
1911	0.0 mm (0.00 in)
1912	0.0 mm (0.00 in)
1913	0.0 mm (0.00 in)
1914	0.0 mm (0.00 in)
1915	0.0 mm (0.00 in)
1916	110.2 mm (4.3 in)
1917	66.8 mm (2.6 in)
1918	51.0 mm (2.0 in)
1919	37.7 mm (1.5 in)
1920	62.0 mm (2.4 in)
1921	48.3 mm (1.9 in)
1922	35.4 mm (1.4 in)
1923	58.1 mm (2.3 in)
1924	49.5 mm (1.9 in)
1925	58.9 mm (2.3 in)
1926	45.2 mm (1.8 in)
1927	45.6 mm (1.8 in)
1928	67.8 mm (2.7 in)
1929	43.2 mm (1.7 in)
1930	45.4 mm (1.8 in)
1931	48.0 mm (1.9 in)
1932	82.6 mm (3.3 in)
1933	69.3 mm (2.7 in)
1934	86.1 mm (3.4 in)
1935	82.3 mm (3.2 in)
1936	44.7 mm (1.8 in)
1937	43.6 mm (1.7 in)
1938	109.7 mm (4.3 in)
1939	67.6 mm (2.7 in)
1940	51.7 mm (2.0 in)
1941	47.3 mm (1.9 in)
1942	55.4 mm (2.2 in)
1943	33.5 mm (1.3 in)
1944	41.5 mm (1.6 in)
1945	62.3 mm (2.5 in)
1946	47.6 mm (1.9 in)
1947	59.2 mm (2.3 in)
1948	42.7 mm (1.7 in)
1949	53.1 mm (2.1 in)
1950	42.8 mm (1.7 in)
1951	67.3 mm (2.6 in)
1952	54.7 mm (2.2 in)
1953	42.6 mm (1.7 in)
1954	33.5 mm (1.3 in)
1955	68.2 mm (2.7 in)
1956	71.9 mm (2.8 in)
1957	35.9 mm (1.4 in)
1958	67.5 mm (2.7 in)
1959	27.4 mm (1.1 in)
1960	40.7 mm (1.6 in)
1961	48.3 mm (1.9 in)
1962	45.9 mm (1.8 in)
1963	59.5 mm (2.3 in)
1964	58.9 mm (2.3 in)
1965	36.8 mm (1.4 in)
1966	108.2 mm (4.3 in)
1967	45.8 mm (1.8 in)
1968	56.1 mm (2.2 in)
1969	56.7 mm (2.2 in)
1970	62.2 mm (2.4 in)
1971	70.1 mm (2.8 in)
1972	53.0 mm (2.1 in)
1973	56.1 mm (2.2 in)
1974	54.2 mm (2.1 in)
1975	47.2 mm (1.9 in)
1976	58.6 mm (2.3 in)
1977	46.6 mm (1.8 in)
1978	73.8 mm (2.9 in)
1979	90.6 mm (3.6 in)
1980	65.4 mm (2.6 in)
1981	64.6 mm (2.5 in)
1982	60.6 mm (2.4 in)
1983	93.4 mm (3.7 in)
1984	68.6 mm (2.7 in)
1985	40.8 mm (1.6 in)
1986	66.8 mm (2.6 in)
1987	53.2 mm (2.1 in)
1988	55.4 mm (2.2 in)
1989	54.2 mm (2.1 in)
1990	77.0 mm (3.0 in)
1991	54.6 mm (2.1 in)
1992	104.4 mm (4.1 in)
1993	45.0 mm (1.8 in)
1994	61.6 mm (2.4 in)
1995	63.2 mm (2.5 in)
1996	57.4 mm (2.3 in)
1997	49.6 mm (2.0 in)
1998	41.8 mm (1.6 in)
1999	47.6 mm (1.9 in)
2000	53.4 mm (2.1 in)
2001	41.2 mm (1.6 in)
2002	40.2 mm (1.6 in)
2003	65.4 mm (2.6 in)
2004	46.0 mm (1.8 in)
2005	73.2 mm (2.9 in)
2006	50.8 mm (2.0 in)
2007	64.0 mm (2.5 in)
2008	33.4 mm (1.3 in)
2009	47.5 mm (1.9 in)
2010	65.9 mm (2.6 in)
2011	51.2 mm (2.0 in)
2012	41.2 mm (1.6 in)
2013	53.4 mm (2.1 in)
2014	85.0 mm (3.3 in)
2020	70.5 mm (2.8 in)
2021	41.8 mm (1.6 in)
2022	59.0 mm (2.3 in)
2023	50.2 mm (2.0 in)
2024	39.7 mm (1.6 in)
2025	65.0 mm (2.6 in)
2026	61.8 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Koppio, 1897 to 2026. The record is 76 days in 1916, marked on the chart; the median year is 36 days.

Longest dry spell (CDD) at Koppio by year
Year	Longest dry spell (CDD)
1897	31 days
1898	31 days
1904	31 days
1905	31 days
1907	28 days
1910	28 days
1911	31 days
1912	31 days
1913	31 days
1914	28 days
1915	31 days
1916	76 days
1917	21 days
1918	29 days
1919	36 days
1920	49 days
1921	40 days
1922	50 days
1923	65 days
1924	44 days
1925	42 days
1926	38 days
1927	37 days
1928	30 days
1929	52 days
1930	31 days
1931	54 days
1932	44 days
1933	42 days
1934	40 days
1935	71 days
1936	44 days
1937	35 days
1938	49 days
1939	42 days
1940	40 days
1941	28 days
1942	44 days
1943	41 days
1944	36 days
1945	36 days
1946	22 days
1947	22 days
1948	38 days
1949	47 days
1950	32 days
1951	43 days
1952	55 days
1953	37 days
1954	45 days
1955	25 days
1956	39 days
1957	66 days
1958	49 days
1959	43 days
1960	27 days
1961	52 days
1962	29 days
1963	32 days
1964	36 days
1965	49 days
1966	31 days
1967	55 days
1968	31 days
1969	25 days
1970	57 days
1971	31 days
1972	30 days
1973	34 days
1974	47 days
1975	26 days
1976	46 days
1977	29 days
1978	39 days
1979	34 days
1980	43 days
1981	26 days
1982	23 days
1983	21 days
1984	67 days
1985	50 days
1986	73 days
1987	28 days
1988	27 days
1989	60 days
1990	44 days
1991	64 days
1992	60 days
1993	35 days
1994	67 days
1995	32 days
1996	36 days
1997	40 days
1998	29 days
1999	28 days
2000	24 days
2001	30 days
2002	57 days
2003	25 days
2004	33 days
2005	32 days
2006	48 days
2007	30 days
2008	33 days
2009	34 days
2010	22 days
2011	36 days
2012	30 days
2013	20 days
2014	37 days
2020	29 days
2021	35 days
2022	27 days
2023	32 days
2024	68 days
2025	47 days
2026	41 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

102 years, 1916 to 2025

A day with at least 31.3 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 84.2 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Koppio: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.3 mm (1.2 in)
5 years	42.3 mm (1.7 in)
10 years	50.8 mm (2.0 in)
25 years	62.8 mm (2.5 in)
50 years	73.0 mm (2.9 in)
100 years	84.2 mm (3.3 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1916 to 2025.

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: 89.4 mm (3.5 in) in 1938; 69.3 mm (2.7 in) in 1933; 65.0 mm (2.6 in) in 1935.

Download the Data

Data for Koppio standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Koppio 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).

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