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

Two Rocks Weather Records (ASN00009183)

Record envelope, standing records and threshold days for Two Rocks (ASN00009183), Australia, with 38 years of record.

Key Facts for Two Rocks

  • Two Rocks (ASN00009183) is a weather station in Australia at -31.50 latitude and 115.59 longitude, 20 m (66 ft) above sea level.
  • The station reports from 1975 to 2012, 38 years of record.
  • 0 records set at Two Rocks still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Two Rocks set a daily record precipitation of 38.0 mm (1.5 in) on 20 June 2012.

About the Station

  • Location: Australia, -31.50 latitude, 115.59 longitude.
  • Elevation: 20 m (66 ft).
  • Period of record: 1975 to 2012, 38 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Two Rocks, with 2026 drawn through them The band shows the record high and record low for each calendar day at Two Rocks. 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 Two Rocks. 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 Two Rocks, 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 Two Rocks by the year they were set 0 records at Two Rocks still stand. 00000000000
0 records at Two Rocks still stand.
Standing records at Two Rocks by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 116.8 mm (4.6 in)
Record daily precipitation for each month at Two Rocks The wettest day on record for each calendar month at Two Rocks. The most was 116.8 mm (4.6 in) on 9 February 1992. 050100150 Jan: 69.6 mm (2.7 in), 29 January 1990 Jan Feb: 116.8 mm (4.6 in), 9 February 1992 Feb Mar: 42.0 mm (1.7 in), 30 March 2003 Mar Apr: 32.6 mm (1.3 in), 17 April 2002 Apr May: 68.4 mm (2.7 in), 25 May 1981 May Jun: 61.4 mm (2.4 in), 4 June 2005 Jun Jul: 64.4 mm (2.5 in), 30 July 2001 Jul Aug: 60.4 mm (2.4 in), 4 August 1994 Aug Sep: 47.2 mm (1.9 in), 22 September 1985 Sep Oct: 67.8 mm (2.7 in), 18 October 1995 Oct Nov: 34.2 mm (1.3 in), 5 November 1991 Nov Dec: 24.6 mm (1.0 in), 25 December 1991 Dec
The wettest day on record for each calendar month at Two Rocks. The most was 116.8 mm (4.6 in) on 9 February 1992.
Record daily precipitation for each month at Two Rocks
MonthRecord daily precipitation (mm)Date
Jan69.6 mm (2.7 in)29 January 1990
Feb116.8 mm (4.6 in)9 February 1992
Mar42.0 mm (1.7 in)30 March 2003
Apr32.6 mm (1.3 in)17 April 2002
May68.4 mm (2.7 in)25 May 1981
Jun61.4 mm (2.4 in)4 June 2005
Jul64.4 mm (2.5 in)30 July 2001
Aug60.4 mm (2.4 in)4 August 1994
Sep47.2 mm (1.9 in)22 September 1985
Oct67.8 mm (2.7 in)18 October 1995
Nov34.2 mm (1.3 in)5 November 1991
Dec24.6 mm (1.0 in)25 December 1991

Latest Records

20
Latest records at Two Rocks
DateStationRecordValueBeat old record byOld record stoodSignificance
20 June 2012Two Rocks, AUdaily rain38.0 mm (1.5 in)17.8 mm (0.7 in)16 years28 of 100 (Routine)
7 June 2012Two Rocks, AUdaily rain21.4 mm (0.8 in)3.0 mm (0.12 in)7 years8 of 100 (Routine)
5 May 2012Two Rocks, AUdaily rain6.2 mm (0.24 in)1.4 mm (0.06 in)26 years11 of 100 (Routine)
30 April 2012Two Rocks, AUdaily rain18.6 mm (0.7 in)10.8 mm (0.4 in)5 years20 of 100 (Routine)
29 April 2012Two Rocks, AUdaily rain16.4 mm (0.6 in)5.8 mm (0.23 in)12 years15 of 100 (Routine)
4 February 2012Two Rocks, AUdaily rain (Tie)0.4 mm (0.02 in)tie16 years2 of 100 (Routine)
3 February 2012Two Rocks, AUdaily rain43.6 mm (1.7 in)43.6 mm (1.7 in)36 years40 of 100 (Notable)
2 February 2012Two Rocks, AUdaily rain23.4 mm (0.9 in)19.2 mm (0.8 in)8 years17 of 100 (Routine)
27 January 2012Two Rocks, AUdaily rain2.0 mm (0.08 in)1.8 mm (0.07 in)16 years9 of 100 (Routine)
4 January 2012Two Rocks, AUdaily rain3.2 mm (0.13 in)2.6 mm (0.10 in)0 years5 of 100 (Routine)
30 December 2011Two Rocks, AUdaily rain5.8 mm (0.23 in)0.6 mm (0.02 in)30 years13 of 100 (Routine)
13 December 2011Two Rocks, AUdaily rain6.2 mm (0.24 in)4.6 mm (0.18 in)14 years20 of 100 (Routine)
7 December 2011Two Rocks, AUdaily rain20.2 mm (0.8 in)15.0 mm (0.6 in)0 years20 of 100 (Routine)
6 December 2011Two Rocks, AUdaily rain17.8 mm (0.7 in)16.0 mm (0.6 in)4 years20 of 100 (Routine)
4 November 2011Two Rocks, AUdaily rain (Tie)6.6 mm (0.26 in)tie24 years2 of 100 (Routine)
27 October 2011Two Rocks, AUdaily rain9.0 mm (0.35 in)0.8 mm (0.03 in)8 years6 of 100 (Routine)
25 October 2011Two Rocks, AUdaily rain25.6 mm (1.0 in)14.2 mm (0.6 in)2 years26 of 100 (Routine)
18 September 2011Two Rocks, AUdaily rain18.2 mm (0.7 in)6.1 mm (0.24 in)34 years20 of 100 (Routine)
2 September 2011Two Rocks, AUdaily rain15.4 mm (0.6 in)4.6 mm (0.18 in)12 years13 of 100 (Routine)
22 August 2011Two Rocks, AUdaily rain (Tie)22.0 mm (0.9 in)tie8 years1 of 100 (Routine)

Extremes by Year

1975 to 2012
Yearly extremes at Two Rocks: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)116.8 mm (4.6 in)199243.0 mm (1.7 in)34
Wettest five days (Rx5day)130.9 mm (5.2 in)198174.1 mm (2.9 in)34
Longest dry spell (CDD)104 days197944 days34

Wettest day (Rx1day)

Wettest day (Rx1day) at Two Rocks by year The wettest day of the year at Two Rocks, 1975 to 2012. The record is 116.8 mm (4.6 in) in 1992, marked on the chart; the median year is 43.0 mm (1.7 in). 0501001501980199020002010Record: 116.8 mm (4.6 in) in 1992
The wettest day of the year at Two Rocks, 1975 to 2012. The record is 116.8 mm (4.6 in) in 1992, marked on the chart; the median year is 43.0 mm (1.7 in).
Wettest day (Rx1day) at Two Rocks by year
YearWettest day (Rx1day)
19751.1 mm (0.04 in)
197646.4 mm (1.8 in)
197732.7 mm (1.3 in)
197851.6 mm (2.0 in)
197952.3 mm (2.1 in)
198030.2 mm (1.2 in)
198168.4 mm (2.7 in)
198547.2 mm (1.9 in)
198645.6 mm (1.8 in)
198853.8 mm (2.1 in)
198937.6 mm (1.5 in)
199069.6 mm (2.7 in)
199134.2 mm (1.3 in)
1992116.8 mm (4.6 in)
199364.6 mm (2.5 in)
199460.4 mm (2.4 in)
199567.8 mm (2.7 in)
199631.8 mm (1.3 in)
199730.2 mm (1.2 in)
199844.8 mm (1.8 in)
199952.2 mm (2.1 in)
200040.0 mm (1.6 in)
200164.4 mm (2.5 in)
200233.6 mm (1.3 in)
200342.0 mm (1.7 in)
200426.6 mm (1.0 in)
200561.4 mm (2.4 in)
200641.6 mm (1.6 in)
200728.4 mm (1.1 in)
200834.6 mm (1.4 in)
200925.2 mm (1.0 in)
201042.4 mm (1.7 in)
201138.2 mm (1.5 in)
201243.6 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Two Rocks by year The wettest five days of the year at Two Rocks, 1975 to 2012. The record is 130.9 mm (5.2 in) in 1981, marked on the chart; the median year is 74.1 mm (2.9 in). 0501001501980199020002010Record: 130.9 mm (5.2 in) in 1981
The wettest five days of the year at Two Rocks, 1975 to 2012. The record is 130.9 mm (5.2 in) in 1981, marked on the chart; the median year is 74.1 mm (2.9 in).
Wettest five days (Rx5day) at Two Rocks by year
YearWettest five days (Rx5day)
19751.1 mm (0.04 in)
197675.7 mm (3.0 in)
197753.2 mm (2.1 in)
1978104.4 mm (4.1 in)
197999.2 mm (3.9 in)
198073.8 mm (2.9 in)
1981130.9 mm (5.2 in)
198568.6 mm (2.7 in)
198698.8 mm (3.9 in)
198868.4 mm (2.7 in)
198973.0 mm (2.9 in)
199078.4 mm (3.1 in)
199185.4 mm (3.4 in)
1992119.0 mm (4.7 in)
199389.6 mm (3.5 in)
199482.1 mm (3.2 in)
199582.8 mm (3.3 in)
199675.2 mm (3.0 in)
199762.4 mm (2.5 in)
199891.6 mm (3.6 in)
199952.2 mm (2.1 in)
200058.8 mm (2.3 in)
200174.4 mm (2.9 in)
200271.2 mm (2.8 in)
200382.6 mm (3.3 in)
200462.4 mm (2.5 in)
200594.4 mm (3.7 in)
200649.6 mm (2.0 in)
200767.0 mm (2.6 in)
200872.0 mm (2.8 in)
200967.6 mm (2.7 in)
201052.4 mm (2.1 in)
201189.2 mm (3.5 in)
201267.4 mm (2.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Two Rocks by year The longest dry spell of the year at Two Rocks, 1975 to 2012. The record is 104 days in 1979, marked on the chart; the median year is 44 days. 02550751001251980199020002010Record: 104 days in 1979
The longest dry spell of the year at Two Rocks, 1975 to 2012. The record is 104 days in 1979, marked on the chart; the median year is 44 days.
Longest dry spell (CDD) at Two Rocks by year
YearLongest dry spell (CDD)
197521 days
197643 days
197764 days
197838 days
1979104 days
198062 days
198148 days
198524 days
198638 days
198848 days
198941 days
199024 days
199155 days
199238 days
199338 days
199444 days
199553 days
199644 days
199754 days
199845 days
199964 days
200031 days
200140 days
200240 days
200336 days
200462 days
200586 days
200638 days
200749 days
200836 days
200944 days
201057 days
201167 days
201261 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

30 years, 1976 to 2011

A day with at least 42.4 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 115.3 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Two Rocks: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years42.4 mm (1.7 in)
5 years57.7 mm (2.3 in)
10 years69.3 mm (2.7 in)
25 years86.0 mm (3.4 in)
50 years100.0 mm (3.9 in)Longer than the 30 years of record
100 years115.3 mm (4.5 in)Longer than the 30 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, 30 years of values from 1976 to 2011.

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: 116.8 mm (4.6 in) in 1992; 69.6 mm (2.7 in) in 1990; 67.8 mm (2.7 in) in 1995.

Download the Data

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