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Data as of 2025-12-31
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Built 2026-10-15 (15 October 2026)

Rocklands Reservoir Weather Records (ASN00079052)

Record envelope, standing records and threshold days for Rocklands Reservoir (ASN00079052), Australia, with 63 years of record.

Key Facts for Rocklands Reservoir

  • Rocklands Reservoir (ASN00079052) is a weather station in Australia at -37.23 latitude and 141.96 longitude, 220 m (722 ft) above sea level.
  • The station reports from 1948 to 2010, 63 years of record.
  • 0 records set at Rocklands Reservoir still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Rocklands Reservoir set a daily record precipitation of 23.0 mm (0.9 in) on 30 June 2010.

About the Station

  • Location: Australia, -37.23 latitude, 141.96 longitude.
  • Elevation: 220 m (722 ft).
  • Period of record: 1948 to 2010, 63 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Rocklands Reservoir, with 2026 drawn through them The band shows the record high and record low for each calendar day at Rocklands Reservoir. 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 Rocklands Reservoir. 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 Rocklands Reservoir, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

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

Wettest Day of Each Month

Feb: 118.1 mm (4.6 in)
Record daily precipitation for each month at Rocklands Reservoir The wettest day on record for each calendar month at Rocklands Reservoir. The most was 118.1 mm (4.6 in) on 7 February 1957. 050100150 Jan: 112.3 mm (4.4 in), 25 January 1952 Jan Feb: 118.1 mm (4.6 in), 7 February 1957 Feb Mar: 34.4 mm (1.4 in), 28 March 1990 Mar Apr: 97.4 mm (3.8 in), 23 April 1980 Apr May: 50.2 mm (2.0 in), 5 May 1988 May Jun: 40.6 mm (1.6 in), 6 June 1995 Jun Jul: 29.6 mm (1.2 in), 8 July 1993 Jul Aug: 47.8 mm (1.9 in), 1 August 1958 Aug Sep: 36.4 mm (1.4 in), 23 September 1998 Sep Oct: 57.4 mm (2.3 in), 11 October 1948 Oct Nov: 45.7 mm (1.8 in), 18 November 1964 Nov Dec: 47.5 mm (1.9 in), 12 December 1954 Dec
The wettest day on record for each calendar month at Rocklands Reservoir. The most was 118.1 mm (4.6 in) on 7 February 1957.
Record daily precipitation for each month at Rocklands Reservoir
MonthRecord daily precipitation (mm)Date
Jan112.3 mm (4.4 in)25 January 1952
Feb118.1 mm (4.6 in)7 February 1957
Mar34.4 mm (1.4 in)28 March 1990
Apr97.4 mm (3.8 in)23 April 1980
May50.2 mm (2.0 in)5 May 1988
Jun40.6 mm (1.6 in)6 June 1995
Jul29.6 mm (1.2 in)8 July 1993
Aug47.8 mm (1.9 in)1 August 1958
Sep36.4 mm (1.4 in)23 September 1998
Oct57.4 mm (2.3 in)11 October 1948
Nov45.7 mm (1.8 in)18 November 1964
Dec47.5 mm (1.9 in)12 December 1954

Latest Records

20
Latest records at Rocklands Reservoir
DateStationRecordValueBeat old record byOld record stoodSignificance
30 June 2010Rocklands Reservoir, AUdaily rain23.0 mm (0.9 in)12.1 mm (0.5 in)56 years20 of 100 (Routine)
12 February 2010Rocklands Reservoir, AUdaily rain10.4 mm (0.4 in)0.8 mm (0.03 in)6 years7 of 100 (Routine)
13 January 2010Rocklands Reservoir, AUdaily rain9.4 mm (0.37 in)0.5 mm (0.02 in)36 years17 of 100 (Routine)
18 December 2009Rocklands Reservoir, AUdaily rain17.2 mm (0.7 in)10.8 mm (0.4 in)48 years20 of 100 (Routine)
29 August 2009Rocklands Reservoir, AUdaily rain25.0 mm (1.0 in)12.4 mm (0.5 in)7 years33 of 100 (Routine)
11 July 2009Rocklands Reservoir, AUdaily rain14.4 mm (0.6 in)5.4 mm (0.21 in)3 years18 of 100 (Routine)
2 July 2009Rocklands Reservoir, AUdaily rain11.2 mm (0.4 in)1.2 mm (0.05 in)19 years13 of 100 (Routine)
25 May 2009Rocklands Reservoir, AUdaily rain29.0 mm (1.1 in)11.0 mm (0.4 in)34 years34 of 100 (Routine)
14 March 2009Rocklands Reservoir, AUdaily rain12.0 mm (0.5 in)1.6 mm (0.06 in)52 years20 of 100 (Routine)
4 March 2009Rocklands Reservoir, AUdaily rain4.2 mm (0.17 in)0.4 mm (0.02 in)50 years20 of 100 (Routine)
13 December 2008Rocklands Reservoir, AUdaily rain47.0 mm (1.9 in)32.3 mm (1.3 in)43 years58 of 100 (Notable)
7 July 2008Rocklands Reservoir, AUdaily rain16.6 mm (0.7 in)2.1 mm (0.08 in)52 years20 of 100 (Routine)
19 January 2008Rocklands Reservoir, AUdaily rain31.8 mm (1.3 in)23.8 mm (0.9 in)0 years32 of 100 (Routine)
4 November 2007Rocklands Reservoir, AUdaily rain28.4 mm (1.1 in)9.2 mm (0.36 in)16 years25 of 100 (Routine)
17 August 2007Rocklands Reservoir, AUdaily rain18.8 mm (0.7 in)6.0 mm (0.24 in)22 years20 of 100 (Routine)
30 May 2007Rocklands Reservoir, AUdaily rain23.8 mm (0.9 in)3.0 mm (0.12 in)8 years13 of 100 (Routine)
28 April 2007Rocklands Reservoir, AUdaily rain27.4 mm (1.1 in)6.8 mm (0.27 in)46 years28 of 100 (Routine)
20 January 2007Rocklands Reservoir, AUdaily rain48.4 mm (1.9 in)21.4 mm (0.8 in)28 years38 of 100 (Notable)
19 January 2007Rocklands Reservoir, AUdaily rain8.0 mm (0.31 in)6.5 mm (0.26 in)49 years20 of 100 (Routine)
7 January 2007Rocklands Reservoir, AUdaily rain21.4 mm (0.8 in)11.4 mm (0.4 in)24 years20 of 100 (Routine)

Extremes by Year

1948 to 2010
Yearly extremes at Rocklands Reservoir: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)118.1 mm (4.6 in)195733.2 mm (1.3 in)63
Wettest five days (Rx5day)143.8 mm (5.7 in)198056.4 mm (2.2 in)63
Longest dry spell (CDD)46 days197028 days63

Wettest day (Rx1day)

Wettest day (Rx1day) at Rocklands Reservoir by year The wettest day of the year at Rocklands Reservoir, 1948 to 2010. The record is 118.1 mm (4.6 in) in 1957, marked on the chart; the median year is 33.2 mm (1.3 in). 050100150196019802000Record: 118.1 mm (4.6 in) in 1957
The wettest day of the year at Rocklands Reservoir, 1948 to 2010. The record is 118.1 mm (4.6 in) in 1957, marked on the chart; the median year is 33.2 mm (1.3 in).
Wettest day (Rx1day) at Rocklands Reservoir by year
YearWettest day (Rx1day)
194857.4 mm (2.3 in)
194938.4 mm (1.5 in)
195021.3 mm (0.8 in)
195129.2 mm (1.1 in)
1952112.3 mm (4.4 in)
195326.4 mm (1.0 in)
195447.5 mm (1.9 in)
195545.0 mm (1.8 in)
195624.1 mm (0.9 in)
1957118.1 mm (4.6 in)
195847.8 mm (1.9 in)
195936.8 mm (1.4 in)
196039.9 mm (1.6 in)
196178.2 mm (3.1 in)
196223.1 mm (0.9 in)
196351.8 mm (2.0 in)
196445.7 mm (1.8 in)
196524.9 mm (1.0 in)
196661.0 mm (2.4 in)
196732.8 mm (1.3 in)
196827.9 mm (1.1 in)
196926.9 mm (1.1 in)
197033.8 mm (1.3 in)
197143.7 mm (1.7 in)
197218.0 mm (0.7 in)
197353.8 mm (2.1 in)
197440.4 mm (1.6 in)
197530.0 mm (1.2 in)
197630.0 mm (1.2 in)
197733.2 mm (1.3 in)
197838.0 mm (1.5 in)
197933.0 mm (1.3 in)
198097.4 mm (3.8 in)
198125.2 mm (1.0 in)
198222.2 mm (0.9 in)
198330.4 mm (1.2 in)
198429.0 mm (1.1 in)
198533.2 mm (1.3 in)
198629.6 mm (1.2 in)
198748.8 mm (1.9 in)
198850.2 mm (2.0 in)
198925.4 mm (1.0 in)
199034.4 mm (1.4 in)
199145.6 mm (1.8 in)
199267.2 mm (2.6 in)
199332.4 mm (1.3 in)
199428.0 mm (1.1 in)
199540.6 mm (1.6 in)
199629.4 mm (1.2 in)
199734.4 mm (1.4 in)
199836.4 mm (1.4 in)
199931.2 mm (1.2 in)
200017.6 mm (0.7 in)
200134.6 mm (1.4 in)
200231.6 mm (1.2 in)
200348.6 mm (1.9 in)
200423.0 mm (0.9 in)
200532.4 mm (1.3 in)
200620.0 mm (0.8 in)
200748.4 mm (1.9 in)
200847.0 mm (1.9 in)
200929.0 mm (1.1 in)
201023.0 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Rocklands Reservoir by year The wettest five days of the year at Rocklands Reservoir, 1948 to 2010. The record is 143.8 mm (5.7 in) in 1980, marked on the chart; the median year is 56.4 mm (2.2 in). 050100150196019802000Record: 143.8 mm (5.7 in) in 1980
The wettest five days of the year at Rocklands Reservoir, 1948 to 2010. The record is 143.8 mm (5.7 in) in 1980, marked on the chart; the median year is 56.4 mm (2.2 in).
Wettest five days (Rx5day) at Rocklands Reservoir by year
YearWettest five days (Rx5day)
194878.3 mm (3.1 in)
194975.8 mm (3.0 in)
195046.7 mm (1.8 in)
195152.9 mm (2.1 in)
1952118.4 mm (4.7 in)
195351.5 mm (2.0 in)
195458.9 mm (2.3 in)
195574.6 mm (2.9 in)
195655.9 mm (2.2 in)
1957120.1 mm (4.7 in)
195875.8 mm (3.0 in)
195946.9 mm (1.8 in)
196048.0 mm (1.9 in)
196182.0 mm (3.2 in)
196256.9 mm (2.2 in)
196397.5 mm (3.8 in)
196474.7 mm (2.9 in)
196532.8 mm (1.3 in)
196661.5 mm (2.4 in)
196735.8 mm (1.4 in)
196849.6 mm (2.0 in)
196946.4 mm (1.8 in)
197060.0 mm (2.4 in)
197164.1 mm (2.5 in)
197247.5 mm (1.9 in)
197358.6 mm (2.3 in)
1974116.6 mm (4.6 in)
197578.8 mm (3.1 in)
197644.6 mm (1.8 in)
197751.3 mm (2.0 in)
197864.6 mm (2.5 in)
197969.4 mm (2.7 in)
1980143.8 mm (5.7 in)
198157.2 mm (2.3 in)
198227.2 mm (1.1 in)
198356.4 mm (2.2 in)
198448.8 mm (1.9 in)
198561.0 mm (2.4 in)
198651.2 mm (2.0 in)
198764.0 mm (2.5 in)
198857.0 mm (2.2 in)
198952.6 mm (2.1 in)
199046.8 mm (1.8 in)
199171.0 mm (2.8 in)
199270.6 mm (2.8 in)
199350.0 mm (2.0 in)
199440.8 mm (1.6 in)
1995120.4 mm (4.7 in)
199670.8 mm (2.8 in)
199763.8 mm (2.5 in)
199842.0 mm (1.7 in)
199949.0 mm (1.9 in)
200032.8 mm (1.3 in)
200146.0 mm (1.8 in)
200232.0 mm (1.3 in)
200350.8 mm (2.0 in)
200451.2 mm (2.0 in)
200551.4 mm (2.0 in)
200632.0 mm (1.3 in)
200776.8 mm (3.0 in)
200858.0 mm (2.3 in)
200948.8 mm (1.9 in)
201030.2 mm (1.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Rocklands Reservoir by year The longest dry spell of the year at Rocklands Reservoir, 1948 to 2010. The record is 46 days in 1970, marked on the chart; the median year is 28 days. 1020304050196019802000Record: 46 days in 1970
The longest dry spell of the year at Rocklands Reservoir, 1948 to 2010. The record is 46 days in 1970, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Rocklands Reservoir by year
YearLongest dry spell (CDD)
194814 days
194929 days
195027 days
195141 days
195224 days
195337 days
195445 days
195525 days
195641 days
195718 days
195829 days
195923 days
196032 days
196127 days
196230 days
196330 days
196422 days
196528 days
196622 days
196732 days
196830 days
196933 days
197046 days
197121 days
197238 days
197315 days
197430 days
197521 days
197619 days
197717 days
197821 days
197918 days
198037 days
198122 days
198222 days
198333 days
198419 days
198528 days
198633 days
198725 days
198827 days
198923 days
199031 days
199138 days
199220 days
199328 days
199433 days
199519 days
199618 days
199721 days
199834 days
199917 days
200028 days
200131 days
200238 days
200324 days
200420 days
200528 days
200631 days
200721 days
200831 days
200938 days
201020 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

61 years, 1949 to 2009

A day with at least 34.0 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 122.4 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Rocklands Reservoir: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years34.0 mm (1.3 in)
5 years48.3 mm (1.9 in)
10 years60.7 mm (2.4 in)
25 years80.7 mm (3.2 in)
50 years99.6 mm (3.9 in)
100 years122.4 mm (4.8 in)Longer than the 61 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, 61 years of values from 1949 to 2009.

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: 118.1 mm (4.6 in) in 1957; 112.3 mm (4.4 in) in 1952; 97.4 mm (3.8 in) in 1980.

Download the Data

  • Data for Rocklands Reservoir standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Rocklands Reservoir 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 . Last revised (2025-12-31).