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

Circle Valley Post Office Weather Records (ASN00012016)

Record envelope, standing records and threshold days for Circle Valley Post Office (ASN00012016), Australia, with 50 years of record.

Key Facts for Circle Valley Post Office

  • Circle Valley Post Office (ASN00012016) is a weather station in Australia at -33.08 latitude and 121.75 longitude, n/a above sea level.
  • The station reports from 1918 to 1967, 50 years of record.
  • 0 records set at Circle Valley Post Office still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Circle Valley Post Office set a daily record precipitation of 30.7 mm (1.2 in) on 17 August 1967.

About the Station

  • Location: Australia, -33.08 latitude, 121.75 longitude.
  • Elevation: n/a.
  • Period of record: 1918 to 1967, 50 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

Wettest Day of Each Month

Jan: 114.3 mm (4.5 in)
Record daily precipitation for each month at Circle Valley Post Office The wettest day on record for each calendar month at Circle Valley Post Office. The most was 114.3 mm (4.5 in) on 12 January 1939. 050100150 Jan: 114.3 mm (4.5 in), 12 January 1939 Jan Feb: 71.1 mm (2.8 in), 23 February 1948 Feb Mar: 30.5 mm (1.2 in), 30 March 1955 Mar Apr: 50.8 mm (2.0 in), 17 April 1961 Apr May: 43.2 mm (1.7 in), 18 May 1944 May Jun: 53.8 mm (2.1 in), 27 June 1966 Jun Jul: 28.4 mm (1.1 in), 11 July 1962 Jul Aug: 40.6 mm (1.6 in), 11 August 1931 Aug Sep: 37.1 mm (1.5 in), 13 September 1959 Sep Oct: 36.3 mm (1.4 in), 24 October 1932 Oct Nov: 40.4 mm (1.6 in), 5 November 1965 Nov Dec: 42.2 mm (1.7 in), 3 December 1959 Dec
The wettest day on record for each calendar month at Circle Valley Post Office. The most was 114.3 mm (4.5 in) on 12 January 1939.
Record daily precipitation for each month at Circle Valley Post Office
MonthRecord daily precipitation (mm)Date
Jan114.3 mm (4.5 in)12 January 1939
Feb71.1 mm (2.8 in)23 February 1948
Mar30.5 mm (1.2 in)30 March 1955
Apr50.8 mm (2.0 in)17 April 1961
May43.2 mm (1.7 in)18 May 1944
Jun53.8 mm (2.1 in)27 June 1966
Jul28.4 mm (1.1 in)11 July 1962
Aug40.6 mm (1.6 in)11 August 1931
Sep37.1 mm (1.5 in)13 September 1959
Oct36.3 mm (1.4 in)24 October 1932
Nov40.4 mm (1.6 in)5 November 1965
Dec42.2 mm (1.7 in)3 December 1959

Latest Records

20
Latest records at Circle Valley Post Office
DateStationRecordValueBeat old record byOld record stoodSignificance
17 August 1967Circle Valley Post Office, AUdaily rain30.7 mm (1.2 in)25.6 mm (1.0 in)24 years52 of 100 (Notable)
9 August 1967Circle Valley Post Office, AUdaily rain11.7 mm (0.5 in)6.4 mm (0.25 in)45 years20 of 100 (Routine)
8 July 1967Circle Valley Post Office, AUdaily rain9.9 mm (0.39 in)2.3 mm (0.09 in)6 years13 of 100 (Routine)
24 May 1967Circle Valley Post Office, AUdaily rain23.9 mm (0.9 in)7.4 mm (0.29 in)4 years19 of 100 (Routine)
17 May 1967Circle Valley Post Office, AUdaily rain9.9 mm (0.39 in)2.3 mm (0.09 in)28 years17 of 100 (Routine)
20 April 1967Circle Valley Post Office, AUdaily rain9.4 mm (0.37 in)2.5 mm (0.10 in)36 years19 of 100 (Routine)
9 October 1966Circle Valley Post Office, AUdaily rain12.2 mm (0.5 in)3.8 mm (0.15 in)8 years13 of 100 (Routine)
7 September 1966Circle Valley Post Office, AUdaily rain4.8 mm (0.19 in)0.2 mm (0.01 in)5 years5 of 100 (Routine)
25 August 1966Circle Valley Post Office, AUdaily rain6.4 mm (0.25 in)0.6 mm (0.02 in)35 years15 of 100 (Routine)
21 July 1966Circle Valley Post Office, AUdaily rain18.0 mm (0.7 in)8.9 mm (0.35 in)7 years20 of 100 (Routine)
27 June 1966Circle Valley Post Office, AUmonthly rain53.8 mm (2.1 in)26.1 mm (1.0 in)35 years64 of 100 (Major)
19 February 1966Circle Valley Post Office, AUdaily rain4.8 mm (0.19 in)0.5 mm (0.02 in)4 years5 of 100 (Routine)
3 January 1966Circle Valley Post Office, AUdaily rain38.4 mm (1.5 in)28.2 mm (1.1 in)36 years35 of 100 (Notable)
2 January 1966Circle Valley Post Office, AUdaily rain15.2 mm (0.6 in)11.4 mm (0.4 in)11 years15 of 100 (Routine)
5 November 1965Circle Valley Post Office, AUmonthly rain40.4 mm (1.6 in)2.8 mm (0.11 in)27 years26 of 100 (Routine)
10 August 1965Circle Valley Post Office, AUdaily rain21.1 mm (0.8 in)14.7 mm (0.6 in)6 years20 of 100 (Routine)
20 July 1965Circle Valley Post Office, AUdaily rain8.6 mm (0.34 in)1.5 mm (0.06 in)39 years18 of 100 (Routine)
26 June 1965Circle Valley Post Office, AUdaily rain7.6 mm (0.30 in)0.7 mm (0.03 in)19 years10 of 100 (Routine)
25 June 1965Circle Valley Post Office, AUdaily rain7.9 mm (0.31 in)2.3 mm (0.09 in)22 years15 of 100 (Routine)
20 June 1965Circle Valley Post Office, AUdaily rain19.6 mm (0.8 in)4.9 mm (0.19 in)6 years16 of 100 (Routine)

Extremes by Year

1918 to 1967
Yearly extremes at Circle Valley Post Office: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)114.3 mm (4.5 in)193929.5 mm (1.2 in)40
Wettest five days (Rx5day)141.2 mm (5.6 in)193941.8 mm (1.6 in)40
Longest dry spell (CDD)87 days195440 days40

Wettest day (Rx1day)

Wettest day (Rx1day) at Circle Valley Post Office by year The wettest day of the year at Circle Valley Post Office, 1918 to 1967. The record is 114.3 mm (4.5 in) in 1939, marked on the chart; the median year is 29.5 mm (1.2 in). 05010015019201930194019501960Record: 114.3 mm (4.5 in) in 1939
The wettest day of the year at Circle Valley Post Office, 1918 to 1967. The record is 114.3 mm (4.5 in) in 1939, marked on the chart; the median year is 29.5 mm (1.2 in).
Wettest day (Rx1day) at Circle Valley Post Office by year
YearWettest day (Rx1day)
191815.2 mm (0.6 in)
191950.3 mm (2.0 in)
192023.4 mm (0.9 in)
192134.3 mm (1.4 in)
192516.3 mm (0.6 in)
192639.4 mm (1.6 in)
192927.9 mm (1.1 in)
193027.4 mm (1.1 in)
193140.6 mm (1.6 in)
193236.3 mm (1.4 in)
193325.4 mm (1.0 in)
193442.2 mm (1.7 in)
193516.3 mm (0.6 in)
193626.4 mm (1.0 in)
193737.6 mm (1.5 in)
193866.0 mm (2.6 in)
1939114.3 mm (4.5 in)
194022.1 mm (0.9 in)
194119.1 mm (0.8 in)
194222.9 mm (0.9 in)
194331.8 mm (1.3 in)
194443.2 mm (1.7 in)
194525.4 mm (1.0 in)
194619.3 mm (0.8 in)
194724.4 mm (1.0 in)
194871.1 mm (2.8 in)
195413.7 mm (0.5 in)
195530.5 mm (1.2 in)
195611.4 mm (0.4 in)
195714.0 mm (0.6 in)
195845.2 mm (1.8 in)
195942.2 mm (1.7 in)
196020.3 mm (0.8 in)
196177.7 mm (3.1 in)
196228.4 mm (1.1 in)
196350.8 mm (2.0 in)
196421.6 mm (0.9 in)
196540.4 mm (1.6 in)
196653.8 mm (2.1 in)
196730.7 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Circle Valley Post Office by year The wettest five days of the year at Circle Valley Post Office, 1918 to 1967. The record is 141.2 mm (5.6 in) in 1939, marked on the chart; the median year is 41.8 mm (1.6 in). 05010015019201930194019501960Record: 141.2 mm (5.6 in) in 1939
The wettest five days of the year at Circle Valley Post Office, 1918 to 1967. The record is 141.2 mm (5.6 in) in 1939, marked on the chart; the median year is 41.8 mm (1.6 in).
Wettest five days (Rx5day) at Circle Valley Post Office by year
YearWettest five days (Rx5day)
191828.1 mm (1.1 in)
191960.2 mm (2.4 in)
192033.6 mm (1.3 in)
192150.8 mm (2.0 in)
192526.5 mm (1.0 in)
192659.6 mm (2.3 in)
192934.7 mm (1.4 in)
193043.2 mm (1.7 in)
193161.7 mm (2.4 in)
193241.9 mm (1.6 in)
193333.8 mm (1.3 in)
193451.6 mm (2.0 in)
193526.4 mm (1.0 in)
193632.5 mm (1.3 in)
193741.7 mm (1.6 in)
1938104.6 mm (4.1 in)
1939141.2 mm (5.6 in)
194032.8 mm (1.3 in)
194133.8 mm (1.3 in)
194241.1 mm (1.6 in)
194391.5 mm (3.6 in)
194456.6 mm (2.2 in)
194529.0 mm (1.1 in)
194633.6 mm (1.3 in)
194731.4 mm (1.2 in)
194878.2 mm (3.1 in)
195419.9 mm (0.8 in)
195577.5 mm (3.1 in)
195619.6 mm (0.8 in)
195727.9 mm (1.1 in)
195852.3 mm (2.1 in)
195956.4 mm (2.2 in)
196041.4 mm (1.6 in)
1961103.1 mm (4.1 in)
196238.9 mm (1.5 in)
196356.2 mm (2.2 in)
196442.1 mm (1.7 in)
196553.9 mm (2.1 in)
196655.3 mm (2.2 in)
196733.2 mm (1.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Circle Valley Post Office by year The longest dry spell of the year at Circle Valley Post Office, 1918 to 1967. The record is 87 days in 1954, marked on the chart; the median year is 40 days. 02040608010019201930194019501960Record: 87 days in 1954
The longest dry spell of the year at Circle Valley Post Office, 1918 to 1967. The record is 87 days in 1954, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Circle Valley Post Office by year
YearLongest dry spell (CDD)
191831 days
191938 days
192051 days
192144 days
192521 days
192636 days
192925 days
193052 days
193148 days
193252 days
193342 days
193444 days
193531 days
193641 days
193727 days
193835 days
193936 days
194046 days
194136 days
194236 days
194325 days
194459 days
194572 days
194668 days
194733 days
194846 days
195487 days
195544 days
195648 days
195761 days
195833 days
195928 days
196022 days
196151 days
196236 days
196316 days
196427 days
196544 days
196662 days
196727 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

33 years, 1919 to 1966

A day with at least 29.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 95.4 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Circle Valley Post Office: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years29.1 mm (1.1 in)
5 years43.4 mm (1.7 in)
10 years54.1 mm (2.1 in)
25 years69.3 mm (2.7 in)
50 years81.8 mm (3.2 in)Longer than the 33 years of record
100 years95.4 mm (3.8 in)Longer than the 33 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, 33 years of values from 1919 to 1966.

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: 77.7 mm (3.1 in) in 1961; 71.1 mm (2.8 in) in 1948; 66.0 mm (2.6 in) in 1938.

Download the Data

  • Data for Circle Valley Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Circle Valley Post Office 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).