Coonalpyn (Alpyn Downs) Weather Records (ASN00025527)

Record envelope, standing records and threshold days for Coonalpyn (Alpyn Downs) (ASN00025527), Australia, with 56 years of record.

Key Facts for Coonalpyn (Alpyn Downs)

Coonalpyn (Alpyn Downs) (ASN00025527) is a weather station in Australia at -35.71 latitude and 139.64 longitude, 18 m (59 ft) above sea level.
The station reports from 1955 to 2010, 56 years of record.
0 records set at Coonalpyn (Alpyn Downs) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Coonalpyn (Alpyn Downs) set a daily record precipitation of 16.4 mm (0.6 in) on 1 August 2010.

About the Station

Location: Australia, -35.71 latitude, 139.64 longitude.
Elevation: 18 m (59 ft).
Period of record: 1955 to 2010, 56 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 Coonalpyn (Alpyn 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 Coonalpyn (Alpyn 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 Coonalpyn (Alpyn Downs) still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Coonalpyn (Alpyn Downs) between 8 February 1997 and 25 December 1999. Each dot is a new record.

When Coonalpyn (Alpyn Downs) set new all-time records
Date	Kind	Detail
1997-02-08	Record daily precipitation	Record daily precipitation 88.4 mm (3.5 in)
1999-12-25	Record daily precipitation	Record daily precipitation 135.0 mm (5.3 in)

Wettest Day of Each Month

Dec: 135.0 mm (5.3 in)

The wettest day on record for each calendar month at Coonalpyn (Alpyn Downs). The most was 135.0 mm (5.3 in) on 25 December 1999.

Record daily precipitation for each month at Coonalpyn (Alpyn Downs)
Month	Record daily precipitation (mm)	Date
Jan	49.5 mm (1.9 in)	26 January 1993
Feb	88.4 mm (3.5 in)	8 February 1997
Mar	64.6 mm (2.5 in)	27 March 1974
Apr	49.0 mm (1.9 in)	14 April 1985
May	65.5 mm (2.6 in)	26 May 1955
Jun	41.0 mm (1.6 in)	22 June 1987
Jul	60.0 mm (2.4 in)	27 July 2000
Aug	29.0 mm (1.1 in)	5 August 1984
Sep	48.3 mm (1.9 in)	11 September 1958
Oct	34.0 mm (1.3 in)	6 October 1980
Nov	52.3 mm (2.1 in)	18 November 1964
Dec	135.0 mm (5.3 in)	25 December 1999

Latest Records

Latest records at Coonalpyn (Alpyn Downs)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 August 2010	Coonalpyn (Alpyn Downs), AU	daily rain	16.4 mm (0.6 in)	3.2 mm (0.13 in)	48 years	20 of 100 (Routine)
14 July 2010	Coonalpyn (Alpyn Downs), AU	daily rain (Tie)	7.0 mm (0.28 in)	tie	15 years	2 of 100 (Routine)
13 December 2008	Coonalpyn (Alpyn Downs), AU	daily rain	27.2 mm (1.1 in)	11.2 mm (0.4 in)	27 years	22 of 100 (Routine)
16 July 2008	Coonalpyn (Alpyn Downs), AU	daily rain	28.4 mm (1.1 in)	13.2 mm (0.5 in)	35 years	43 of 100 (Notable)
15 July 2008	Coonalpyn (Alpyn Downs), AU	daily rain	21.0 mm (0.8 in)	9.0 mm (0.35 in)	3 years	20 of 100 (Routine)
17 May 2008	Coonalpyn (Alpyn Downs), AU	daily rain	29.0 mm (1.1 in)	11.0 mm (0.4 in)	53 years	40 of 100 (Notable)
3 April 2008	Coonalpyn (Alpyn Downs), AU	daily rain	7.2 mm (0.28 in)	3.0 mm (0.12 in)	29 years	18 of 100 (Routine)
22 December 2007	Coonalpyn (Alpyn Downs), AU	daily rain	32.0 mm (1.3 in)	10.4 mm (0.4 in)	42 years	26 of 100 (Routine)
3 November 2007	Coonalpyn (Alpyn Downs), AU	daily rain	13.2 mm (0.5 in)	6.8 mm (0.27 in)	2 years	15 of 100 (Routine)
26 September 2007	Coonalpyn (Alpyn Downs), AU	daily rain	22.0 mm (0.9 in)	13.0 mm (0.5 in)	21 years	20 of 100 (Routine)
30 May 2007	Coonalpyn (Alpyn Downs), AU	daily rain	20.0 mm (0.8 in)	7.3 mm (0.29 in)	46 years	20 of 100 (Routine)
21 January 2007	Coonalpyn (Alpyn Downs), AU	daily rain	9.4 mm (0.37 in)	7.1 mm (0.28 in)	48 years	20 of 100 (Routine)
19 January 2007	Coonalpyn (Alpyn Downs), AU	daily rain	4.4 mm (0.17 in)	1.4 mm (0.06 in)	44 years	19 of 100 (Routine)
24 September 2006	Coonalpyn (Alpyn Downs), AU	daily rain	7.0 mm (0.28 in)	0.6 mm (0.02 in)	44 years	19 of 100 (Routine)
6 September 2006	Coonalpyn (Alpyn Downs), AU	daily rain (Tie)	10.0 mm (0.4 in)	tie	28 years	3 of 100 (Routine)
7 May 2006	Coonalpyn (Alpyn Downs), AU	daily rain (Tie)	12.0 mm (0.5 in)	tie	24 years	3 of 100 (Routine)
15 April 2006	Coonalpyn (Alpyn Downs), AU	daily rain (Tie)	12.0 mm (0.5 in)	tie	20 years	2 of 100 (Routine)
13 March 2006	Coonalpyn (Alpyn Downs), AU	daily rain	8.8 mm (0.35 in)	2.7 mm (0.11 in)	48 years	20 of 100 (Routine)
29 January 2006	Coonalpyn (Alpyn Downs), AU	daily rain	11.6 mm (0.5 in)	8.4 mm (0.33 in)	0 years	16 of 100 (Routine)
17 December 2005	Coonalpyn (Alpyn Downs), AU	daily rain	7.0 mm (0.28 in)	5.8 mm (0.23 in)	20 years	16 of 100 (Routine)

Extremes by Year

1955 to 2010

Yearly extremes at Coonalpyn (Alpyn Downs): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	135.0 mm (5.3 in)	1999	31.1 mm (1.2 in)	56
Wettest five days (Rx5day)	153.0 mm (6.0 in)	1999	46.8 mm (1.8 in)	56
Longest dry spell (CDD)	89 days	1986	33 days	56

Wettest day (Rx1day)

The wettest day of the year at Coonalpyn (Alpyn Downs), 1955 to 2010. The record is 135.0 mm (5.3 in) in 1999, marked on the chart; the median year is 31.1 mm (1.2 in).

Wettest day (Rx1day) at Coonalpyn (Alpyn Downs) by year
Year	Wettest day (Rx1day)
1955	65.5 mm (2.6 in)
1956	31.8 mm (1.3 in)
1957	31.0 mm (1.2 in)
1958	48.3 mm (1.9 in)
1959	30.2 mm (1.2 in)
1960	25.4 mm (1.0 in)
1961	22.1 mm (0.9 in)
1962	26.7 mm (1.1 in)
1963	40.6 mm (1.6 in)
1964	52.3 mm (2.1 in)
1965	16.5 mm (0.6 in)
1966	35.6 mm (1.4 in)
1967	20.6 mm (0.8 in)
1968	31.2 mm (1.2 in)
1969	47.2 mm (1.9 in)
1970	35.6 mm (1.4 in)
1971	26.2 mm (1.0 in)
1972	24.1 mm (0.9 in)
1973	54.6 mm (2.1 in)
1974	64.6 mm (2.5 in)
1975	25.0 mm (1.0 in)
1976	31.2 mm (1.2 in)
1977	35.0 mm (1.4 in)
1978	32.0 mm (1.3 in)
1979	32.0 mm (1.3 in)
1980	34.0 mm (1.3 in)
1981	40.0 mm (1.6 in)
1982	21.4 mm (0.8 in)
1983	61.0 mm (2.4 in)
1984	37.2 mm (1.5 in)
1985	49.0 mm (1.9 in)
1986	29.0 mm (1.1 in)
1987	41.0 mm (1.6 in)
1988	16.2 mm (0.6 in)
1989	18.2 mm (0.7 in)
1990	30.1 mm (1.2 in)
1991	22.4 mm (0.9 in)
1992	27.0 mm (1.1 in)
1993	49.5 mm (1.9 in)
1994	26.2 mm (1.0 in)
1995	24.8 mm (1.0 in)
1996	30.2 mm (1.2 in)
1997	88.4 mm (3.5 in)
1998	33.8 mm (1.3 in)
1999	135.0 mm (5.3 in)
2000	60.0 mm (2.4 in)
2001	24.0 mm (0.9 in)
2002	40.6 mm (1.6 in)
2003	26.0 mm (1.0 in)
2004	17.4 mm (0.7 in)
2005	25.4 mm (1.0 in)
2006	12.6 mm (0.5 in)
2007	32.0 mm (1.3 in)
2008	29.0 mm (1.1 in)
2009	0.6 mm (0.02 in)
2010	21.0 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coonalpyn (Alpyn Downs), 1955 to 2010. The record is 153.0 mm (6.0 in) in 1999, marked on the chart; the median year is 46.8 mm (1.8 in).

Wettest five days (Rx5day) at Coonalpyn (Alpyn Downs) by year
Year	Wettest five days (Rx5day)
1955	76.0 mm (3.0 in)
1956	60.2 mm (2.4 in)
1957	34.3 mm (1.4 in)
1958	74.4 mm (2.9 in)
1959	40.7 mm (1.6 in)
1960	54.4 mm (2.1 in)
1961	41.4 mm (1.6 in)
1962	54.4 mm (2.1 in)
1963	55.4 mm (2.2 in)
1964	62.5 mm (2.5 in)
1965	19.1 mm (0.8 in)
1966	43.2 mm (1.7 in)
1967	37.9 mm (1.5 in)
1968	42.9 mm (1.7 in)
1969	57.6 mm (2.3 in)
1970	51.6 mm (2.0 in)
1971	59.7 mm (2.4 in)
1972	43.1 mm (1.7 in)
1973	56.4 mm (2.2 in)
1974	96.2 mm (3.8 in)
1975	38.6 mm (1.5 in)
1976	52.6 mm (2.1 in)
1977	56.4 mm (2.2 in)
1978	45.0 mm (1.8 in)
1979	42.0 mm (1.7 in)
1980	48.3 mm (1.9 in)
1981	83.4 mm (3.3 in)
1982	54.4 mm (2.1 in)
1983	61.0 mm (2.4 in)
1984	99.2 mm (3.9 in)
1985	67.8 mm (2.7 in)
1986	51.2 mm (2.0 in)
1987	62.6 mm (2.5 in)
1988	37.4 mm (1.5 in)
1989	35.6 mm (1.4 in)
1990	45.2 mm (1.8 in)
1991	40.6 mm (1.6 in)
1992	34.6 mm (1.4 in)
1993	54.7 mm (2.2 in)
1994	34.2 mm (1.3 in)
1995	45.0 mm (1.8 in)
1996	39.2 mm (1.5 in)
1997	97.2 mm (3.8 in)
1998	41.0 mm (1.6 in)
1999	153.0 mm (6.0 in)
2000	71.0 mm (2.8 in)
2001	39.5 mm (1.6 in)
2002	40.6 mm (1.6 in)
2003	45.0 mm (1.8 in)
2004	33.2 mm (1.3 in)
2005	62.8 mm (2.5 in)
2006	22.0 mm (0.9 in)
2007	39.8 mm (1.6 in)
2008	52.4 mm (2.1 in)
2009	0.6 mm (0.02 in)
2010	31.2 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coonalpyn (Alpyn Downs), 1955 to 2010. The record is 89 days in 1986, marked on the chart; the median year is 33 days.

Longest dry spell (CDD) at Coonalpyn (Alpyn Downs) by year
Year	Longest dry spell (CDD)
1955	25 days
1956	28 days
1957	67 days
1958	20 days
1959	32 days
1960	23 days
1961	34 days
1962	27 days
1963	72 days
1964	36 days
1965	46 days
1966	27 days
1967	61 days
1968	30 days
1969	34 days
1970	50 days
1971	24 days
1972	49 days
1973	22 days
1974	24 days
1975	25 days
1976	35 days
1977	29 days
1978	27 days
1979	21 days
1980	69 days
1981	24 days
1982	21 days
1983	33 days
1984	32 days
1985	37 days
1986	89 days
1987	25 days
1988	35 days
1989	35 days
1990	46 days
1991	54 days
1992	34 days
1993	65 days
1994	48 days
1995	40 days
1996	32 days
1997	39 days
1998	25 days
1999	36 days
2000	38 days
2001	31 days
2002	77 days
2003	25 days
2004	33 days
2005	27 days
2006	47 days
2007	28 days
2008	65 days
2009	31 days
2010	18 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

50 years, 1956 to 2008

A day with at least 30.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 117.0 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Coonalpyn (Alpyn 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	30.7 mm (1.2 in)
5 years	45.0 mm (1.8 in)
10 years	57.2 mm (2.3 in)
25 years	76.8 mm (3.0 in)
50 years	95.0 mm (3.7 in)
100 years	117.0 mm (4.6 in)	Longer than the 50 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, 50 years of values from 1956 to 2008.

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: 135.0 mm (5.3 in) in 1999; 88.4 mm (3.5 in) in 1997; 64.6 mm (2.5 in) in 1974.

Download the Data

Data for Coonalpyn (Alpyn Downs) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coonalpyn (Alpyn 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