Koonmarra Weather Records (ASN00007038)

Record envelope, standing records and threshold days for Koonmarra (ASN00007038), Australia, with 82 years of record.

Key Facts for Koonmarra

Koonmarra (ASN00007038) is a weather station in Australia at -26.27 latitude and 117.78 longitude, 500 m (1,640 ft) above sea level.
The station reports from 1927 to 2008, 82 years of record.
0 records set at Koonmarra still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Koonmarra tied a daily record precipitation of 3.0 mm (0.12 in) on 28 June 2008.

About the Station

Location: Australia, -26.27 latitude, 117.78 longitude.
Elevation: 500 m (1,640 ft).
Period of record: 1927 to 2008, 82 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 Koonmarra. 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 Koonmarra, 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 Koonmarra still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Koonmarra between 22 January 1967 and 13 June 1989. Each dot is a new record.

When Koonmarra set new all-time records
Date	Kind	Detail
1967-01-22	Record daily precipitation	Record daily precipitation 85.1 mm (3.4 in)
1974-07-11	Record daily precipitation	Record daily precipitation 114.7 mm (4.5 in)
1989-06-13	Record daily precipitation	Record daily precipitation 122.8 mm (4.8 in)

Wettest Day of Each Month

Jun: 122.8 mm (4.8 in)

The wettest day on record for each calendar month at Koonmarra. The most was 122.8 mm (4.8 in) on 13 June 1989.

Record daily precipitation for each month at Koonmarra
Month	Record daily precipitation (mm)	Date
Jan	94.6 mm (3.7 in)	31 January 2000
Feb	92.5 mm (3.6 in)	23 February 2001
Mar	90.0 mm (3.5 in)	1 March 2006
Apr	81.3 mm (3.2 in)	7 April 1934
May	82.8 mm (3.3 in)	16 May 1929
Jun	122.8 mm (4.8 in)	13 June 1989
Jul	114.7 mm (4.5 in)	11 July 1974
Aug	38.1 mm (1.5 in)	5 August 1930
Sep	34.0 mm (1.3 in)	20 September 1984
Oct	40.0 mm (1.6 in)	19 October 1980
Nov	110.0 mm (4.3 in)	5 November 1975
Dec	41.4 mm (1.6 in)	6 December 1932

Latest Records

Latest records at Koonmarra
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 June 2008	Koonmarra, AU	daily rain (Tie)	3.0 mm (0.12 in)	tie	80 years	8 of 100 (Routine)
1 April 2006	Koonmarra, AU	daily rain	53.2 mm (2.1 in)	27.7 mm (1.1 in)	31 years	44 of 100 (Notable)
31 March 2006	Koonmarra, AU	daily rain	40.2 mm (1.6 in)	32.6 mm (1.3 in)	19 years	39 of 100 (Notable)
1 March 2006	Koonmarra, AU	monthly rain	90.0 mm (3.5 in)	16.3 mm (0.6 in)	47 years	45 of 100 (Notable)
28 February 2006	Koonmarra, AU	daily rain	25.0 mm (1.0 in)	23.0 mm (0.9 in)	0 years	25 of 100 (Routine)
20 February 2006	Koonmarra, AU	daily rain	26.0 mm (1.0 in)	2.0 mm (0.08 in)	8 years	11 of 100 (Routine)
12 February 2006	Koonmarra, AU	daily rain	13.0 mm (0.5 in)	7.4 mm (0.29 in)	28 years	20 of 100 (Routine)
11 February 2006	Koonmarra, AU	daily rain	30.0 mm (1.2 in)	23.4 mm (0.9 in)	63 years	43 of 100 (Notable)
10 February 2006	Koonmarra, AU	daily rain	40.0 mm (1.6 in)	29.0 mm (1.1 in)	7 years	32 of 100 (Routine)
9 February 2006	Koonmarra, AU	daily rain	38.0 mm (1.5 in)	17.7 mm (0.7 in)	43 years	33 of 100 (Routine)
7 January 2006	Koonmarra, AU	daily rain	38.6 mm (1.5 in)	26.7 mm (1.1 in)	68 years	43 of 100 (Notable)
22 December 2005	Koonmarra, AU	daily rain	13.6 mm (0.5 in)	6.6 mm (0.26 in)	22 years	20 of 100 (Routine)
28 October 2005	Koonmarra, AU	daily rain	8.0 mm (0.31 in)	6.0 mm (0.24 in)	7 years	15 of 100 (Routine)
14 August 2005	Koonmarra, AU	daily rain	5.2 mm (0.20 in)	0.9 mm (0.04 in)	76 years	20 of 100 (Routine)
6 May 2005	Koonmarra, AU	daily rain	32.0 mm (1.3 in)	22.6 mm (0.9 in)	52 years	44 of 100 (Notable)
28 February 2005	Koonmarra, AU	daily rain	2.0 mm (0.08 in)	1.5 mm (0.06 in)	42 years	20 of 100 (Routine)
24 November 2004	Koonmarra, AU	daily rain	26.0 mm (1.0 in)	13.3 mm (0.5 in)	39 years	25 of 100 (Routine)
23 November 2004	Koonmarra, AU	daily rain	19.0 mm (0.7 in)	2.2 mm (0.09 in)	56 years	20 of 100 (Routine)
22 November 2004	Koonmarra, AU	daily rain	12.5 mm (0.5 in)	4.9 mm (0.19 in)	31 years	18 of 100 (Routine)
21 November 2004	Koonmarra, AU	daily rain	10.0 mm (0.4 in)	10.0 mm (0.4 in)	77 years	20 of 100 (Routine)

Extremes by Year

1927 to 2008

Yearly extremes at Koonmarra: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	122.8 mm (4.8 in)	1989	36.9 mm (1.5 in)	80
Wettest five days (Rx5day)	181.0 mm (7.1 in)	1951	48.7 mm (1.9 in)	80
Longest dry spell (CDD)	198 days	1969	89 days	80

Wettest day (Rx1day)

The wettest day of the year at Koonmarra, 1927 to 2008. The record is 122.8 mm (4.8 in) in 1989, marked on the chart; the median year is 36.9 mm (1.5 in).

Wettest day (Rx1day) at Koonmarra by year
Year	Wettest day (Rx1day)
1927	21.1 mm (0.8 in)
1928	48.3 mm (1.9 in)
1929	82.8 mm (3.3 in)
1930	38.1 mm (1.5 in)
1931	40.6 mm (1.6 in)
1932	41.4 mm (1.6 in)
1933	26.9 mm (1.1 in)
1934	81.3 mm (3.2 in)
1935	22.4 mm (0.9 in)
1936	9.1 mm (0.36 in)
1937	71.1 mm (2.8 in)
1938	23.1 mm (0.9 in)
1939	42.2 mm (1.7 in)
1940	10.2 mm (0.4 in)
1941	21.1 mm (0.8 in)
1942	66.0 mm (2.6 in)
1943	23.4 mm (0.9 in)
1944	6.6 mm (0.26 in)
1945	50.8 mm (2.0 in)
1946	38.1 mm (1.5 in)
1947	45.2 mm (1.8 in)
1948	51.1 mm (2.0 in)
1949	24.9 mm (1.0 in)
1950	15.2 mm (0.6 in)
1951	68.1 mm (2.7 in)
1952	26.7 mm (1.1 in)
1953	19.1 mm (0.8 in)
1954	54.4 mm (2.1 in)
1955	38.1 mm (1.5 in)
1956	17.8 mm (0.7 in)
1957	63.5 mm (2.5 in)
1958	73.7 mm (2.9 in)
1959	18.0 mm (0.7 in)
1960	49.5 mm (1.9 in)
1961	78.2 mm (3.1 in)
1962	22.9 mm (0.9 in)
1963	49.5 mm (1.9 in)
1964	27.9 mm (1.1 in)
1965	48.3 mm (1.9 in)
1966	22.9 mm (0.9 in)
1967	85.1 mm (3.4 in)
1968	38.6 mm (1.5 in)
1969	39.9 mm (1.6 in)
1970	30.5 mm (1.2 in)
1971	77.0 mm (3.0 in)
1972	17.3 mm (0.7 in)
1973	35.6 mm (1.4 in)
1974	114.7 mm (4.5 in)
1975	110.0 mm (4.3 in)
1976	12.0 mm (0.5 in)
1977	30.4 mm (1.2 in)
1978	26.6 mm (1.0 in)
1979	9.0 mm (0.35 in)
1980	54.0 mm (2.1 in)
1981	13.0 mm (0.5 in)
1982	8.4 mm (0.33 in)
1983	38.5 mm (1.5 in)
1984	34.0 mm (1.3 in)
1985	30.0 mm (1.2 in)
1986	59.0 mm (2.3 in)
1987	53.0 mm (2.1 in)
1988	41.2 mm (1.6 in)
1989	122.8 mm (4.8 in)
1990	50.0 mm (2.0 in)
1991	21.0 mm (0.8 in)
1992	25.0 mm (1.0 in)
1993	17.4 mm (0.7 in)
1994	28.0 mm (1.1 in)
1996	32.0 mm (1.3 in)
1997	40.0 mm (1.6 in)
1998	26.0 mm (1.0 in)
1999	68.0 mm (2.7 in)
2000	94.6 mm (3.7 in)
2001	92.5 mm (3.6 in)
2002	27.0 mm (1.1 in)
2003	30.0 mm (1.2 in)
2004	33.0 mm (1.3 in)
2005	32.0 mm (1.3 in)
2006	90.0 mm (3.5 in)
2008	3.0 mm (0.12 in)

Wettest five days (Rx5day)

The wettest five days of the year at Koonmarra, 1927 to 2008. The record is 181.0 mm (7.1 in) in 1951, marked on the chart; the median year is 48.7 mm (1.9 in).

Wettest five days (Rx5day) at Koonmarra by year
Year	Wettest five days (Rx5day)
1927	39.7 mm (1.6 in)
1928	52.8 mm (2.1 in)
1929	96.3 mm (3.8 in)
1930	43.7 mm (1.7 in)
1931	40.6 mm (1.6 in)
1932	78.0 mm (3.1 in)
1933	65.3 mm (2.6 in)
1934	99.1 mm (3.9 in)
1935	29.0 mm (1.1 in)
1936	12.1 mm (0.5 in)
1937	83.0 mm (3.3 in)
1938	33.8 mm (1.3 in)
1939	45.0 mm (1.8 in)
1940	10.2 mm (0.4 in)
1941	21.9 mm (0.9 in)
1942	130.6 mm (5.1 in)
1943	29.8 mm (1.2 in)
1944	11.7 mm (0.5 in)
1945	86.4 mm (3.4 in)
1946	53.3 mm (2.1 in)
1947	76.6 mm (3.0 in)
1948	97.3 mm (3.8 in)
1949	27.7 mm (1.1 in)
1950	19.8 mm (0.8 in)
1951	181.0 mm (7.1 in)
1952	46.5 mm (1.8 in)
1953	21.5 mm (0.8 in)
1954	58.5 mm (2.3 in)
1955	38.1 mm (1.5 in)
1956	17.8 mm (0.7 in)
1957	75.7 mm (3.0 in)
1958	92.8 mm (3.7 in)
1959	18.0 mm (0.7 in)
1960	125.8 mm (5.0 in)
1961	82.0 mm (3.2 in)
1962	45.8 mm (1.8 in)
1963	99.5 mm (3.9 in)
1964	27.9 mm (1.1 in)
1965	90.2 mm (3.6 in)
1966	31.3 mm (1.2 in)
1967	139.2 mm (5.5 in)
1968	86.3 mm (3.4 in)
1969	67.6 mm (2.7 in)
1970	38.1 mm (1.5 in)
1971	85.1 mm (3.4 in)
1972	28.2 mm (1.1 in)
1973	37.1 mm (1.5 in)
1974	177.7 mm (7.0 in)
1975	147.0 mm (5.8 in)
1976	19.2 mm (0.8 in)
1977	30.4 mm (1.2 in)
1978	50.8 mm (2.0 in)
1979	11.0 mm (0.4 in)
1980	78.2 mm (3.1 in)
1981	18.0 mm (0.7 in)
1982	15.2 mm (0.6 in)
1983	51.4 mm (2.0 in)
1984	42.0 mm (1.7 in)
1985	40.0 mm (1.6 in)
1986	86.9 mm (3.4 in)
1987	70.0 mm (2.8 in)
1988	52.4 mm (2.1 in)
1989	146.0 mm (5.7 in)
1990	77.4 mm (3.0 in)
1991	21.0 mm (0.8 in)
1992	39.8 mm (1.6 in)
1993	23.4 mm (0.9 in)
1994	63.5 mm (2.5 in)
1996	42.0 mm (1.7 in)
1997	64.0 mm (2.5 in)
1998	34.0 mm (1.3 in)
1999	108.0 mm (4.3 in)
2000	100.8 mm (4.0 in)
2001	111.0 mm (4.4 in)
2002	31.0 mm (1.2 in)
2003	42.0 mm (1.7 in)
2004	67.5 mm (2.7 in)
2005	37.8 mm (1.5 in)
2006	143.0 mm (5.6 in)
2008	3.0 mm (0.12 in)

Longest dry spell (CDD)

The longest dry spell of the year at Koonmarra, 1927 to 2008. The record is 198 days in 1969, marked on the chart; the median year is 89 days.

Longest dry spell (CDD) at Koonmarra by year
Year	Longest dry spell (CDD)
1927	49 days
1928	120 days
1929	138 days
1930	77 days
1931	73 days
1932	96 days
1933	82 days
1934	74 days
1935	130 days
1936	168 days
1937	65 days
1938	111 days
1939	97 days
1940	148 days
1941	56 days
1942	142 days
1943	192 days
1944	125 days
1945	78 days
1946	132 days
1947	66 days
1948	85 days
1949	64 days
1950	154 days
1951	154 days
1952	122 days
1953	105 days
1954	97 days
1955	162 days
1956	121 days
1957	148 days
1958	89 days
1959	137 days
1960	110 days
1961	123 days
1962	98 days
1963	63 days
1964	62 days
1965	61 days
1966	69 days
1967	105 days
1968	111 days
1969	198 days
1970	65 days
1971	130 days
1972	143 days
1973	69 days
1974	67 days
1975	51 days
1976	83 days
1977	102 days
1978	59 days
1979	111 days
1980	59 days
1981	166 days
1982	46 days
1983	80 days
1984	95 days
1985	136 days
1986	88 days
1987	111 days
1988	55 days
1989	97 days
1990	82 days
1991	133 days
1992	72 days
1993	82 days
1994	130 days
1996	48 days
1997	67 days
1998	82 days
1999	97 days
2000	77 days
2001	56 days
2002	73 days
2003	69 days
2004	54 days
2005	71 days
2006	29 days
2008	36 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

70 years, 1928 to 2005

A day with at least 37.7 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 137.9 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Koonmarra: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	37.7 mm (1.5 in)
5 years	60.6 mm (2.4 in)
10 years	77.3 mm (3.0 in)
25 years	100.1 mm (3.9 in)
50 years	118.4 mm (4.7 in)
100 years	137.9 mm (5.4 in)	Longer than the 70 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, 70 years of values from 1928 to 2005.

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: 122.8 mm (4.8 in) in 1989; 114.7 mm (4.5 in) in 1974; 110.0 mm (4.3 in) in 1975.

Download the Data

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