Coan Downs Weather Records (ASN00049009)

Record envelope, standing records and threshold days for Coan Downs (ASN00049009), Australia, with 82 years of record.

Key Facts for Coan Downs

Coan Downs (ASN00049009) is a weather station in Australia at -32.72 latitude and 145.78 longitude, 366 m (1,202 ft) above sea level.
The station reports from 1880 to 1961, 82 years of record.
0 records set at Coan Downs still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Coan Downs set a daily record precipitation of 15.7 mm (0.6 in) on 16 August 1961.

About the Station

Location: Australia, -32.72 latitude, 145.78 longitude.
Elevation: 366 m (1,202 ft).
Period of record: 1880 to 1961, 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 Coan 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 Coan 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 Coan Downs still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Coan Downs between 27 December 1921 and 27 December 1921. Each dot is a new record.

Wettest Day of Each Month

Dec: 114.3 mm (4.5 in)

The wettest day on record for each calendar month at Coan Downs. The most was 114.3 mm (4.5 in) on 27 December 1921.

Record daily precipitation for each month at Coan Downs
Month	Record daily precipitation (mm)	Date
Jan	83.8 mm (3.3 in)	24 January 1885
Feb	60.2 mm (2.4 in)	17 February 1887
Mar	65.3 mm (2.6 in)	4 March 1959
Apr	73.7 mm (2.9 in)	9 April 1952
May	50.0 mm (2.0 in)	19 May 1886
Jun	53.6 mm (2.1 in)	1 June 1930
Jul	57.9 mm (2.3 in)	22 July 1925
Aug	51.3 mm (2.0 in)	26 August 1924
Sep	31.8 mm (1.3 in)	24 September 1916
Oct	51.3 mm (2.0 in)	25 October 1955
Nov	76.2 mm (3.0 in)	5 November 1924
Dec	114.3 mm (4.5 in)	27 December 1921

Latest Records

Latest records at Coan Downs
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 August 1961	Coan Downs, AU	daily rain	15.7 mm (0.6 in)	6.0 mm (0.24 in)	8 years	18 of 100 (Routine)
23 July 1961	Coan Downs, AU	daily rain	15.2 mm (0.6 in)	1.0 mm (0.04 in)	63 years	20 of 100 (Routine)
24 April 1961	Coan Downs, AU	daily rain	38.6 mm (1.5 in)	27.9 mm (1.1 in)	35 years	47 of 100 (Notable)
12 April 1961	Coan Downs, AU	daily rain	21.6 mm (0.9 in)	14.7 mm (0.6 in)	28 years	20 of 100 (Routine)
22 November 1960	Coan Downs, AU	daily rain	20.3 mm (0.8 in)	1.2 mm (0.05 in)	44 years	20 of 100 (Routine)
18 November 1960	Coan Downs, AU	daily rain	24.6 mm (1.0 in)	13.4 mm (0.5 in)	35 years	20 of 100 (Routine)
14 September 1960	Coan Downs, AU	daily rain	12.2 mm (0.5 in)	2.0 mm (0.08 in)	25 years	18 of 100 (Routine)
1 August 1960	Coan Downs, AU	daily rain	20.3 mm (0.8 in)	7.9 mm (0.31 in)	73 years	20 of 100 (Routine)
10 July 1960	Coan Downs, AU	daily rain	11.2 mm (0.4 in)	0.3 mm (0.01 in)	60 years	20 of 100 (Routine)
22 March 1960	Coan Downs, AU	daily rain	12.7 mm (0.5 in)	5.6 mm (0.22 in)	65 years	20 of 100 (Routine)
10 October 1959	Coan Downs, AU	daily rain	40.6 mm (1.6 in)	32.7 mm (1.3 in)	9 years	50 of 100 (Notable)
5 March 1959	Coan Downs, AU	daily rain	25.4 mm (1.0 in)	14.7 mm (0.6 in)	25 years	28 of 100 (Routine)
4 March 1959	Coan Downs, AU	monthly rain	65.3 mm (2.6 in)	1.0 mm (0.04 in)	68 years	38 of 100 (Notable)
14 February 1959	Coan Downs, AU	daily rain	38.4 mm (1.5 in)	0.8 mm (0.03 in)	11 years	11 of 100 (Routine)
20 November 1958	Coan Downs, AU	daily rain	17.0 mm (0.7 in)	10.1 mm (0.4 in)	44 years	20 of 100 (Routine)
16 July 1958	Coan Downs, AU	daily rain	15.5 mm (0.6 in)	6.6 mm (0.26 in)	29 years	20 of 100 (Routine)
8 February 1957	Coan Downs, AU	daily rain	36.3 mm (1.4 in)	0.7 mm (0.03 in)	1 year	7 of 100 (Routine)
31 July 1956	Coan Downs, AU	daily rain	14.2 mm (0.6 in)	1.0 mm (0.04 in)	17 years	13 of 100 (Routine)
7 July 1956	Coan Downs, AU	daily rain	19.6 mm (0.8 in)	12.7 mm (0.5 in)	44 years	20 of 100 (Routine)
13 May 1956	Coan Downs, AU	daily rain	23.6 mm (0.9 in)	5.3 mm (0.21 in)	50 years	20 of 100 (Routine)

Extremes by Year

1880 to 1961

Yearly extremes at Coan Downs: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	114.3 mm (4.5 in)	1921	34.8 mm (1.4 in)	80
Wettest five days (Rx5day)	140.7 mm (5.5 in)	1921	50.7 mm (2.0 in)	80
Longest dry spell (CDD)	94 days	1897	41 days	80

Wettest day (Rx1day)

The wettest day of the year at Coan Downs, 1880 to 1961. The record is 114.3 mm (4.5 in) in 1921, marked on the chart; the median year is 34.8 mm (1.4 in).

Wettest day (Rx1day) at Coan Downs by year
Year	Wettest day (Rx1day)
1880	14.0 mm (0.6 in)
1881	58.4 mm (2.3 in)
1882	34.5 mm (1.4 in)
1883	34.0 mm (1.3 in)
1884	23.6 mm (0.9 in)
1885	83.8 mm (3.3 in)
1886	50.0 mm (2.0 in)
1887	60.2 mm (2.4 in)
1888	16.8 mm (0.7 in)
1889	38.1 mm (1.5 in)
1890	64.3 mm (2.5 in)
1891	74.9 mm (2.9 in)
1892	25.4 mm (1.0 in)
1893	41.9 mm (1.6 in)
1894	58.4 mm (2.3 in)
1895	33.3 mm (1.3 in)
1896	32.5 mm (1.3 in)
1897	40.6 mm (1.6 in)
1898	31.8 mm (1.3 in)
1899	33.5 mm (1.3 in)
1900	25.7 mm (1.0 in)
1901	18.8 mm (0.7 in)
1902	23.6 mm (0.9 in)
1903	17.0 mm (0.7 in)
1904	23.1 mm (0.9 in)
1905	42.4 mm (1.7 in)
1906	52.3 mm (2.1 in)
1907	38.1 mm (1.5 in)
1908	29.2 mm (1.1 in)
1909	30.5 mm (1.2 in)
1910	52.8 mm (2.1 in)
1911	58.2 mm (2.3 in)
1912	35.6 mm (1.4 in)
1913	28.4 mm (1.1 in)
1914	21.6 mm (0.9 in)
1915	24.1 mm (0.9 in)
1916	31.8 mm (1.3 in)
1917	31.8 mm (1.3 in)
1918	30.5 mm (1.2 in)
1919	22.4 mm (0.9 in)
1920	33.0 mm (1.3 in)
1921	114.3 mm (4.5 in)
1922	29.2 mm (1.1 in)
1923	22.9 mm (0.9 in)
1924	76.2 mm (3.0 in)
1925	78.5 mm (3.1 in)
1926	46.2 mm (1.8 in)
1927	19.1 mm (0.8 in)
1928	67.3 mm (2.6 in)
1929	35.6 mm (1.4 in)
1930	53.6 mm (2.1 in)
1931	40.6 mm (1.6 in)
1932	44.2 mm (1.7 in)
1933	17.3 mm (0.7 in)
1934	0.0 mm (0.00 in)
1935	16.3 mm (0.6 in)
1938	0.0 mm (0.00 in)
1939	34.0 mm (1.3 in)
1940	25.4 mm (1.0 in)
1941	35.1 mm (1.4 in)
1942	33.0 mm (1.3 in)
1943	52.8 mm (2.1 in)
1944	41.1 mm (1.6 in)
1945	36.1 mm (1.4 in)
1946	40.1 mm (1.6 in)
1947	57.2 mm (2.3 in)
1948	37.6 mm (1.5 in)
1949	66.0 mm (2.6 in)
1950	48.3 mm (1.9 in)
1951	26.4 mm (1.0 in)
1952	73.7 mm (2.9 in)
1953	33.8 mm (1.3 in)
1954	29.5 mm (1.2 in)
1955	55.9 mm (2.2 in)
1956	56.6 mm (2.2 in)
1957	36.3 mm (1.4 in)
1958	26.7 mm (1.1 in)
1959	65.3 mm (2.6 in)
1960	24.6 mm (1.0 in)
1961	38.6 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coan Downs, 1880 to 1961. The record is 140.7 mm (5.5 in) in 1921, marked on the chart; the median year is 50.7 mm (2.0 in).

Wettest five days (Rx5day) at Coan Downs by year
Year	Wettest five days (Rx5day)
1880	22.9 mm (0.9 in)
1881	83.0 mm (3.3 in)
1882	48.5 mm (1.9 in)
1883	41.9 mm (1.6 in)
1884	31.3 mm (1.2 in)
1885	140.5 mm (5.5 in)
1886	50.0 mm (2.0 in)
1887	92.7 mm (3.6 in)
1888	25.9 mm (1.0 in)
1889	68.6 mm (2.7 in)
1890	64.3 mm (2.5 in)
1891	74.9 mm (2.9 in)
1892	60.4 mm (2.4 in)
1893	55.2 mm (2.2 in)
1894	124.7 mm (4.9 in)
1895	34.6 mm (1.4 in)
1896	52.3 mm (2.1 in)
1897	55.3 mm (2.2 in)
1898	31.8 mm (1.3 in)
1899	34.3 mm (1.4 in)
1900	43.2 mm (1.7 in)
1901	28.9 mm (1.1 in)
1902	31.8 mm (1.3 in)
1903	28.2 mm (1.1 in)
1904	37.6 mm (1.5 in)
1905	61.4 mm (2.4 in)
1906	106.7 mm (4.2 in)
1907	61.5 mm (2.4 in)
1908	31.2 mm (1.2 in)
1909	36.3 mm (1.4 in)
1910	52.8 mm (2.1 in)
1911	66.2 mm (2.6 in)
1912	57.7 mm (2.3 in)
1913	46.7 mm (1.8 in)
1914	40.7 mm (1.6 in)
1915	36.3 mm (1.4 in)
1916	57.3 mm (2.3 in)
1917	56.5 mm (2.2 in)
1918	31.8 mm (1.3 in)
1919	34.7 mm (1.4 in)
1920	55.5 mm (2.2 in)
1921	140.7 mm (5.5 in)
1922	47.0 mm (1.9 in)
1923	42.3 mm (1.7 in)
1924	83.1 mm (3.3 in)
1925	118.2 mm (4.7 in)
1926	46.2 mm (1.8 in)
1927	25.7 mm (1.0 in)
1928	96.0 mm (3.8 in)
1929	48.3 mm (1.9 in)
1930	54.6 mm (2.1 in)
1931	46.5 mm (1.8 in)
1932	62.2 mm (2.4 in)
1933	17.3 mm (0.7 in)
1934	0.0 mm (0.00 in)
1935	24.2 mm (1.0 in)
1938	0.0 mm (0.00 in)
1939	60.7 mm (2.4 in)
1940	44.7 mm (1.8 in)
1941	66.8 mm (2.6 in)
1942	59.6 mm (2.3 in)
1943	77.7 mm (3.1 in)
1944	62.0 mm (2.4 in)
1945	46.8 mm (1.8 in)
1946	50.0 mm (2.0 in)
1947	97.1 mm (3.8 in)
1948	51.8 mm (2.0 in)
1949	84.1 mm (3.3 in)
1950	91.5 mm (3.6 in)
1951	38.4 mm (1.5 in)
1952	89.9 mm (3.5 in)
1953	47.7 mm (1.9 in)
1954	43.3 mm (1.7 in)
1955	80.5 mm (3.2 in)
1956	111.7 mm (4.4 in)
1957	39.1 mm (1.5 in)
1958	51.4 mm (2.0 in)
1959	112.5 mm (4.4 in)
1960	44.9 mm (1.8 in)
1961	38.6 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coan Downs, 1880 to 1961. The record is 94 days in 1897, marked on the chart; the median year is 41 days.

Longest dry spell (CDD) at Coan Downs by year
Year	Longest dry spell (CDD)
1880	37 days
1881	34 days
1882	33 days
1883	38 days
1884	45 days
1885	32 days
1886	81 days
1887	31 days
1888	69 days
1889	30 days
1890	32 days
1891	35 days
1892	43 days
1893	59 days
1894	32 days
1895	59 days
1896	36 days
1897	94 days
1898	49 days
1899	55 days
1900	44 days
1901	60 days
1902	55 days
1903	37 days
1904	52 days
1905	61 days
1906	40 days
1907	46 days
1908	57 days
1909	34 days
1910	71 days
1911	58 days
1912	91 days
1913	34 days
1914	43 days
1915	85 days
1916	27 days
1917	41 days
1918	31 days
1919	58 days
1920	48 days
1921	40 days
1922	41 days
1923	84 days
1924	33 days
1925	37 days
1926	86 days
1927	52 days
1928	35 days
1929	72 days
1930	40 days
1931	43 days
1932	49 days
1933	53 days
1934	31 days
1935	38 days
1938	31 days
1939	44 days
1940	94 days
1941	66 days
1942	28 days
1943	27 days
1944	33 days
1945	38 days
1946	55 days
1947	27 days
1948	41 days
1949	31 days
1950	38 days
1951	47 days
1952	48 days
1953	30 days
1954	49 days
1955	34 days
1956	26 days
1957	53 days
1958	33 days
1959	49 days
1960	38 days
1961	40 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

71 years, 1881 to 1960

A day with at least 37.4 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 106.1 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Coan 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	37.4 mm (1.5 in)
5 years	52.9 mm (2.1 in)
10 years	64.2 mm (2.5 in)
25 years	79.9 mm (3.1 in)
50 years	92.6 mm (3.6 in)
100 years	106.1 mm (4.2 in)	Longer than the 71 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, 71 years of values from 1881 to 1960.

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: 114.3 mm (4.5 in) in 1921; 78.5 mm (3.1 in) in 1925; 76.2 mm (3.0 in) in 1924.

Download the Data

Data for Coan Downs standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coan 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 2026-10-14 (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