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Data as of 2026-10-12
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Built 2026-10-16 (16 October 2026)

Copeton Dam Weather Records (ASN00054128)

Record envelope, standing records and threshold days for Copeton Dam (ASN00054128), Australia, with 58 years of record.

Key Facts for Copeton Dam

  • Copeton Dam (ASN00054128) is a weather station in Australia at -29.89 latitude and 150.90 longitude, 660 m (2,165 ft) above sea level.
  • The station reports from 1969 to 2026, 58 years of record.
  • 0 records set at Copeton Dam still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Copeton Dam set a daily record precipitation of 9.2 mm (0.36 in) on 10 August 2026.

About the Station

  • Location: Australia, -29.89 latitude, 150.90 longitude.
  • Elevation: 660 m (2,165 ft).
  • Period of record: 1969 to 2026, 58 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Copeton Dam, with 2026 drawn through them The band shows the record high and record low for each calendar day at Copeton Dam. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Copeton Dam. 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 Copeton Dam, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Which Years Hold Standing Records

0 standing records
Standing records at Copeton Dam by the year they were set 0 records at Copeton Dam still stand. 00000000000
0 records at Copeton Dam still stand.
Standing records at Copeton Dam by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 131.0 mm (5.2 in)
Record daily precipitation for each month at Copeton Dam The wettest day on record for each calendar month at Copeton Dam. The most was 131.0 mm (5.2 in) on 10 February 1976. 050100150 Jan: 113.4 mm (4.5 in), 17 January 2004 Jan Feb: 131.0 mm (5.2 in), 10 February 1976 Feb Mar: 83.0 mm (3.3 in), 2 March 2013 Mar Apr: 68.0 mm (2.7 in), 1 April 1988 Apr May: 66.2 mm (2.6 in), 3 May 1983 May Jun: 57.9 mm (2.3 in), 1 June 1981 Jun Jul: 80.0 mm (3.1 in), 16 July 1971 Jul Aug: 52.8 mm (2.1 in), 7 August 1971 Aug Sep: 62.2 mm (2.4 in), 14 September 1970 Sep Oct: 61.4 mm (2.4 in), 14 October 2000 Oct Nov: 93.5 mm (3.7 in), 22 November 2023 Nov Dec: 98.8 mm (3.9 in), 10 December 1985 Dec
The wettest day on record for each calendar month at Copeton Dam. The most was 131.0 mm (5.2 in) on 10 February 1976.
Record daily precipitation for each month at Copeton Dam
MonthRecord daily precipitation (mm)Date
Jan113.4 mm (4.5 in)17 January 2004
Feb131.0 mm (5.2 in)10 February 1976
Mar83.0 mm (3.3 in)2 March 2013
Apr68.0 mm (2.7 in)1 April 1988
May66.2 mm (2.6 in)3 May 1983
Jun57.9 mm (2.3 in)1 June 1981
Jul80.0 mm (3.1 in)16 July 1971
Aug52.8 mm (2.1 in)7 August 1971
Sep62.2 mm (2.4 in)14 September 1970
Oct61.4 mm (2.4 in)14 October 2000
Nov93.5 mm (3.7 in)22 November 2023
Dec98.8 mm (3.9 in)10 December 1985

Latest Records

20
Latest records at Copeton Dam
DateStationRecordValueBeat old record byOld record stoodSignificance
10 August 2026Copeton Dam, AUdaily rain9.2 mm (0.36 in)2.6 mm (0.10 in)53 years20 of 100 (Routine)
29 May 2026Copeton Dam, AUdaily rain17.2 mm (0.7 in)2.6 mm (0.10 in)45 years20 of 100 (Routine)
19 May 2026Copeton Dam, AUdaily rain41.8 mm (1.6 in)20.4 mm (0.8 in)48 years39 of 100 (Notable)
2 November 2025Copeton Dam, AUdaily rain45.4 mm (1.8 in)25.6 mm (1.0 in)20 years31 of 100 (Routine)
29 October 2025Copeton Dam, AUdaily rain23.4 mm (0.9 in)0.3 mm (0.01 in)52 years20 of 100 (Routine)
21 August 2025Copeton Dam, AUdaily rain44.4 mm (1.7 in)19.4 mm (0.8 in)31 years36 of 100 (Notable)
2 August 2025Copeton Dam, AUdaily rain33.0 mm (1.3 in)14.0 mm (0.6 in)32 years30 of 100 (Routine)
31 May 2025Copeton Dam, AUdaily rain14.0 mm (0.6 in)5.0 mm (0.20 in)3 years9 of 100 (Routine)
2 April 2025Copeton Dam, AUdaily rain17.4 mm (0.7 in)7.4 mm (0.29 in)35 years20 of 100 (Routine)
12 March 2025Copeton Dam, AUdaily rain66.0 mm (2.6 in)12.2 mm (0.5 in)2 years14 of 100 (Routine)
5 February 2025Copeton Dam, AUdaily rain20.4 mm (0.8 in)1.1 mm (0.04 in)54 years20 of 100 (Routine)
30 November 2024Copeton Dam, AUdaily rain37.2 mm (1.5 in)6.2 mm (0.24 in)53 years24 of 100 (Routine)
16 November 2024Copeton Dam, AUdaily rain32.0 mm (1.3 in)0.4 mm (0.02 in)41 years17 of 100 (Routine)
19 October 2024Copeton Dam, AUdaily rain24.2 mm (1.0 in)2.0 mm (0.08 in)20 years13 of 100 (Routine)
27 September 2024Copeton Dam, AUdaily rain13.6 mm (0.5 in)2.2 mm (0.09 in)19 years12 of 100 (Routine)
13 September 2024Copeton Dam, AUdaily rain21.8 mm (0.9 in)4.5 mm (0.18 in)51 years20 of 100 (Routine)
15 August 2024Copeton Dam, AUdaily rain (Tie)20.0 mm (0.8 in)tie38 years4 of 100 (Routine)
5 May 2024Copeton Dam, AUdaily rain32.5 mm (1.3 in)13.5 mm (0.5 in)26 years25 of 100 (Routine)
19 April 2024Copeton Dam, AUdaily rain18.0 mm (0.7 in)4.8 mm (0.19 in)34 years20 of 100 (Routine)
6 April 2024Copeton Dam, AUdaily rain48.0 mm (1.9 in)17.8 mm (0.7 in)18 years28 of 100 (Routine)

Extremes by Year

1969 to 2026
Yearly extremes at Copeton Dam: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)131.0 mm (5.2 in)197662.1 mm (2.4 in)58
Wettest five days (Rx5day)211.4 mm (8.3 in)200499.4 mm (3.9 in)58
Longest dry spell (CDD)60 days201931 days58

Wettest day (Rx1day)

Wettest day (Rx1day) at Copeton Dam by year The wettest day of the year at Copeton Dam, 1969 to 2026. The record is 131.0 mm (5.2 in) in 1976, marked on the chart; the median year is 62.1 mm (2.4 in). 050100150197019801990200020102020Record: 131.0 mm (5.2 in) in 1976
The wettest day of the year at Copeton Dam, 1969 to 2026. The record is 131.0 mm (5.2 in) in 1976, marked on the chart; the median year is 62.1 mm (2.4 in).
Wettest day (Rx1day) at Copeton Dam by year
YearWettest day (Rx1day)
196936.8 mm (1.4 in)
197073.9 mm (2.9 in)
197180.0 mm (3.1 in)
197239.1 mm (1.5 in)
197371.1 mm (2.8 in)
197481.0 mm (3.2 in)
197576.2 mm (3.0 in)
1976131.0 mm (5.2 in)
197762.0 mm (2.4 in)
197858.8 mm (2.3 in)
197935.5 mm (1.4 in)
198056.6 mm (2.2 in)
198157.9 mm (2.3 in)
198251.7 mm (2.0 in)
198366.2 mm (2.6 in)
198464.6 mm (2.5 in)
198598.8 mm (3.9 in)
198652.0 mm (2.0 in)
198745.0 mm (1.8 in)
198868.0 mm (2.7 in)
198993.0 mm (3.7 in)
199036.2 mm (1.4 in)
199181.0 mm (3.2 in)
199261.4 mm (2.4 in)
199350.0 mm (2.0 in)
199476.6 mm (3.0 in)
199540.2 mm (1.6 in)
199673.0 mm (2.9 in)
199778.0 mm (3.1 in)
199879.6 mm (3.1 in)
199965.0 mm (2.6 in)
200061.4 mm (2.4 in)
200169.8 mm (2.7 in)
200249.2 mm (1.9 in)
200390.6 mm (3.6 in)
2004113.4 mm (4.5 in)
200548.0 mm (1.9 in)
200662.2 mm (2.4 in)
200743.2 mm (1.7 in)
200869.4 mm (2.7 in)
200944.2 mm (1.7 in)
201047.8 mm (1.9 in)
201178.0 mm (3.1 in)
201250.2 mm (2.0 in)
201383.0 mm (3.3 in)
201475.8 mm (3.0 in)
201589.0 mm (3.5 in)
201631.0 mm (1.2 in)
201758.6 mm (2.3 in)
201852.6 mm (2.1 in)
201915.8 mm (0.6 in)
202036.0 mm (1.4 in)
202177.0 mm (3.0 in)
202252.4 mm (2.1 in)
202393.5 mm (3.7 in)
202461.0 mm (2.4 in)
202566.0 mm (2.6 in)
202641.8 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Copeton Dam by year The wettest five days of the year at Copeton Dam, 1969 to 2026. The record is 211.4 mm (8.3 in) in 2004, marked on the chart; the median year is 99.4 mm (3.9 in). 050100150200250197019801990200020102020Record: 211.4 mm (8.3 in) in 2004
The wettest five days of the year at Copeton Dam, 1969 to 2026. The record is 211.4 mm (8.3 in) in 2004, marked on the chart; the median year is 99.4 mm (3.9 in).
Wettest five days (Rx5day) at Copeton Dam by year
YearWettest five days (Rx5day)
196972.9 mm (2.9 in)
1970169.7 mm (6.7 in)
1971124.4 mm (4.9 in)
197262.8 mm (2.5 in)
1973134.3 mm (5.3 in)
1974141.6 mm (5.6 in)
1975118.0 mm (4.6 in)
1976162.9 mm (6.4 in)
197789.6 mm (3.5 in)
197887.4 mm (3.4 in)
197970.7 mm (2.8 in)
198080.7 mm (3.2 in)
198199.6 mm (3.9 in)
198294.8 mm (3.7 in)
1983105.0 mm (4.1 in)
1984118.5 mm (4.7 in)
1985170.8 mm (6.7 in)
198668.0 mm (2.7 in)
1987105.6 mm (4.2 in)
198888.2 mm (3.5 in)
1989114.0 mm (4.5 in)
199083.7 mm (3.3 in)
1991125.0 mm (4.9 in)
199279.4 mm (3.1 in)
199379.4 mm (3.1 in)
199483.4 mm (3.3 in)
1995131.2 mm (5.2 in)
1996143.5 mm (5.6 in)
199799.2 mm (3.9 in)
199897.6 mm (3.8 in)
1999120.0 mm (4.7 in)
2000100.4 mm (4.0 in)
2001151.4 mm (6.0 in)
200279.4 mm (3.1 in)
2003166.2 mm (6.5 in)
2004211.4 mm (8.3 in)
200569.0 mm (2.7 in)
200662.8 mm (2.5 in)
2007108.8 mm (4.3 in)
200885.4 mm (3.4 in)
200987.6 mm (3.4 in)
201098.8 mm (3.9 in)
2011187.8 mm (7.4 in)
2012122.4 mm (4.8 in)
2013110.0 mm (4.3 in)
2014101.8 mm (4.0 in)
201594.2 mm (3.7 in)
201661.8 mm (2.4 in)
201795.5 mm (3.8 in)
201860.2 mm (2.4 in)
201918.8 mm (0.7 in)
202063.8 mm (2.5 in)
2021119.8 mm (4.7 in)
2022100.0 mm (3.9 in)
2023156.8 mm (6.2 in)
2024110.6 mm (4.4 in)
202596.0 mm (3.8 in)
202678.4 mm (3.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Copeton Dam by year The longest dry spell of the year at Copeton Dam, 1969 to 2026. The record is 60 days in 2019, marked on the chart; the median year is 31 days. 0204060197019801990200020102020Record: 60 days in 2019
The longest dry spell of the year at Copeton Dam, 1969 to 2026. The record is 60 days in 2019, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Copeton Dam by year
YearLongest dry spell (CDD)
196921 days
197040 days
197131 days
197227 days
197330 days
197434 days
197534 days
197621 days
197742 days
197828 days
197925 days
198056 days
198145 days
198243 days
198320 days
198425 days
198526 days
198644 days
198727 days
198837 days
198935 days
199041 days
199149 days
199227 days
199343 days
199447 days
199534 days
199623 days
199735 days
199851 days
199924 days
200038 days
200128 days
200255 days
200331 days
200425 days
200549 days
200639 days
200722 days
200850 days
200937 days
201018 days
201121 days
201232 days
201327 days
201427 days
201527 days
201628 days
201740 days
201830 days
201960 days
202023 days
202124 days
202226 days
202329 days
202426 days
202520 days
202638 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

52 years, 1969 to 2025

A day with at least 64.0 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 119.8 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Copeton Dam: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.0 mm (2.5 in)
5 years81.6 mm (3.2 in)
10 years92.1 mm (3.6 in)
25 years104.2 mm (4.1 in)
50 years112.3 mm (4.4 in)
100 years119.8 mm (4.7 in)Longer than the 52 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, 52 years of values from 1969 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: 131.0 mm (5.2 in) in 1976; 113.4 mm (4.5 in) in 2004; 98.8 mm (3.9 in) in 1985.

Download the Data

  • Data for Copeton Dam standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Copeton Dam 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 . Last revised (2026-10-12).