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Omanama Weather Records (ASN00041078)

Record envelope, standing records and threshold days for Omanama (ASN00041078), Australia, with 38 years of record.

Key Facts for Omanama

  • Omanama (ASN00041078) is a weather station in Australia at -28.40 latitude and 151.30 longitude, 314 m (1,030 ft) above sea level.
  • The station reports from 1911 to 1948, 38 years of record.
  • 0 records set at Omanama still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Omanama set a daily record precipitation of 19.3 mm (0.8 in) on 1 November 1948.

About the Station

  • Location: Australia, -28.40 latitude, 151.30 longitude.
  • Elevation: 314 m (1,030 ft).
  • Period of record: 1911 to 1948, 38 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

All-Time Record Progression

2 new records
When Omanama set new all-time records 2 all-time records were set at Omanama between 24 January 1947 and 31 March 1947. Each dot is a new record. Record daily precipitation24 January 1947: Record daily precipitation 114.3 mm (4.5 in)31 March 1947: Record daily precipitation 128.3 mm (5.1 in)
2 all-time records were set at Omanama between 24 January 1947 and 31 March 1947. Each dot is a new record.
When Omanama set new all-time records
DateKindDetail
1947-01-24Record daily precipitationRecord daily precipitation 114.3 mm (4.5 in)
1947-03-31Record daily precipitationRecord daily precipitation 128.3 mm (5.1 in)

Wettest Day of Each Month

Mar: 128.3 mm (5.1 in)
Record daily precipitation for each month at Omanama The wettest day on record for each calendar month at Omanama. The most was 128.3 mm (5.1 in) on 31 March 1947. 050100150 Jan: 114.3 mm (4.5 in), 24 January 1947 Jan Feb: 61.2 mm (2.4 in), 25 February 1925 Feb Mar: 128.3 mm (5.1 in), 31 March 1947 Mar Apr: 84.6 mm (3.3 in), 8 April 1916 Apr May: 72.6 mm (2.9 in), 3 May 1948 May Jun: 66.5 mm (2.6 in), 22 June 1913 Jun Jul: 63.8 mm (2.5 in), 23 July 1921 Jul Aug: 50.8 mm (2.0 in), 31 August 1943 Aug Sep: 55.9 mm (2.2 in), 17 September 1917 Sep Oct: 57.2 mm (2.3 in), 2 October 1933 Oct Nov: 71.6 mm (2.8 in), 7 November 1943 Nov Dec: 86.9 mm (3.4 in), 20 December 1934 Dec
The wettest day on record for each calendar month at Omanama. The most was 128.3 mm (5.1 in) on 31 March 1947.
Record daily precipitation for each month at Omanama
MonthRecord daily precipitation (mm)Date
Jan114.3 mm (4.5 in)24 January 1947
Feb61.2 mm (2.4 in)25 February 1925
Mar128.3 mm (5.1 in)31 March 1947
Apr84.6 mm (3.3 in)8 April 1916
May72.6 mm (2.9 in)3 May 1948
Jun66.5 mm (2.6 in)22 June 1913
Jul63.8 mm (2.5 in)23 July 1921
Aug50.8 mm (2.0 in)31 August 1943
Sep55.9 mm (2.2 in)17 September 1917
Oct57.2 mm (2.3 in)2 October 1933
Nov71.6 mm (2.8 in)7 November 1943
Dec86.9 mm (3.4 in)20 December 1934

Latest Records

20
Latest records at Omanama
DateStationRecordValueBeat old record byOld record stoodSignificance
1 November 1948Omanama, AUdaily rain19.3 mm (0.8 in)5.1 mm (0.20 in)36 years16 of 100 (Routine)
29 October 1948Omanama, AUdaily rain13.5 mm (0.5 in)6.4 mm (0.25 in)30 years17 of 100 (Routine)
25 September 1948Omanama, AUdaily rain15.2 mm (0.6 in)5.0 mm (0.20 in)24 years14 of 100 (Routine)
19 August 1948Omanama, AUdaily rain16.3 mm (0.6 in)8.2 mm (0.32 in)24 years18 of 100 (Routine)
16 June 1948Omanama, AUdaily rain44.7 mm (1.8 in)23.6 mm (0.9 in)13 years25 of 100 (Routine)
15 June 1948Omanama, AUdaily rain49.0 mm (1.9 in)29.9 mm (1.2 in)21 years33 of 100 (Routine)
3 May 1948Omanama, AUmonthly rain72.6 mm (2.9 in)5.3 mm (0.21 in)9 years19 of 100 (Routine)
2 May 1948Omanama, AUdaily rain33.8 mm (1.3 in)32.3 mm (1.3 in)15 years37 of 100 (Notable)
1 May 1948Omanama, AUdaily rain14.7 mm (0.6 in)5.6 mm (0.22 in)17 years13 of 100 (Routine)
30 April 1948Omanama, AUdaily rain (Tie)3.0 mm (0.12 in)tie17 years2 of 100 (Routine)
29 April 1948Omanama, AUdaily rain7.6 mm (0.30 in)5.6 mm (0.22 in)11 years9 of 100 (Routine)
7 March 1948Omanama, AUdaily rain17.5 mm (0.7 in)10.6 mm (0.4 in)27 years17 of 100 (Routine)
28 February 1948Omanama, AUdaily rain20.1 mm (0.8 in)8.7 mm (0.34 in)33 years19 of 100 (Routine)
24 February 1948Omanama, AUdaily rain14.0 mm (0.6 in)1.3 mm (0.05 in)30 years12 of 100 (Routine)
11 December 1947Omanama, AUdaily rain71.1 mm (2.8 in)20.3 mm (0.8 in)29 years25 of 100 (Routine)
3 December 1947Omanama, AUdaily rain29.7 mm (1.2 in)2.3 mm (0.09 in)20 years10 of 100 (Routine)
2 December 1947Omanama, AUdaily rain23.1 mm (0.9 in)15.7 mm (0.6 in)17 years19 of 100 (Routine)
30 November 1947Omanama, AUdaily rain33.8 mm (1.3 in)23.6 mm (0.9 in)28 years27 of 100 (Routine)
4 November 1947Omanama, AUdaily rain18.3 mm (0.7 in)9.7 mm (0.38 in)12 years12 of 100 (Routine)
16 October 1947Omanama, AUdaily rain25.4 mm (1.0 in)9.4 mm (0.37 in)12 years14 of 100 (Routine)

Extremes by Year

1911 to 1948
Yearly extremes at Omanama: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)128.3 mm (5.1 in)194755.4 mm (2.2 in)38
Wettest five days (Rx5day)133.4 mm (5.3 in)194785.9 mm (3.4 in)38
Longest dry spell (CDD)153 days194444 days38

Wettest day (Rx1day)

Wettest day (Rx1day) at Omanama by year The wettest day of the year at Omanama, 1911 to 1948. The record is 128.3 mm (5.1 in) in 1947, marked on the chart; the median year is 55.4 mm (2.2 in). 050100150192019301940Record: 128.3 mm (5.1 in) in 1947
The wettest day of the year at Omanama, 1911 to 1948. The record is 128.3 mm (5.1 in) in 1947, marked on the chart; the median year is 55.4 mm (2.2 in).
Wettest day (Rx1day) at Omanama by year
YearWettest day (Rx1day)
191117.8 mm (0.7 in)
191250.8 mm (2.0 in)
191366.5 mm (2.6 in)
191447.8 mm (1.9 in)
191525.4 mm (1.0 in)
191684.6 mm (3.3 in)
191755.9 mm (2.2 in)
191841.9 mm (1.6 in)
191959.9 mm (2.4 in)
192041.9 mm (1.6 in)
192163.8 mm (2.5 in)
192242.4 mm (1.7 in)
192353.3 mm (2.1 in)
192450.3 mm (2.0 in)
192561.2 mm (2.4 in)
192660.5 mm (2.4 in)
192763.2 mm (2.5 in)
192845.5 mm (1.8 in)
192955.4 mm (2.2 in)
193047.2 mm (1.9 in)
193153.6 mm (2.1 in)
193247.0 mm (1.9 in)
193385.1 mm (3.4 in)
193486.9 mm (3.4 in)
193539.9 mm (1.6 in)
193644.5 mm (1.8 in)
193768.3 mm (2.7 in)
193867.3 mm (2.6 in)
193953.3 mm (2.1 in)
194075.7 mm (3.0 in)
194164.5 mm (2.5 in)
194247.0 mm (1.9 in)
194371.6 mm (2.8 in)
194450.8 mm (2.0 in)
194555.4 mm (2.2 in)
194655.9 mm (2.2 in)
1947128.3 mm (5.1 in)
194872.6 mm (2.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Omanama by year The wettest five days of the year at Omanama, 1911 to 1948. The record is 133.4 mm (5.3 in) in 1947, marked on the chart; the median year is 85.9 mm (3.4 in). 050100150192019301940Record: 133.4 mm (5.3 in) in 1947
The wettest five days of the year at Omanama, 1911 to 1948. The record is 133.4 mm (5.3 in) in 1947, marked on the chart; the median year is 85.9 mm (3.4 in).
Wettest five days (Rx5day) at Omanama by year
YearWettest five days (Rx5day)
191132.0 mm (1.3 in)
191292.2 mm (3.6 in)
191374.4 mm (2.9 in)
191462.5 mm (2.5 in)
191547.3 mm (1.9 in)
1916105.4 mm (4.1 in)
1917102.9 mm (4.1 in)
191847.0 mm (1.9 in)
191982.9 mm (3.3 in)
192056.6 mm (2.2 in)
1921102.8 mm (4.0 in)
192262.5 mm (2.5 in)
192355.2 mm (2.2 in)
192490.6 mm (3.6 in)
192567.8 mm (2.7 in)
192677.8 mm (3.1 in)
192790.4 mm (3.6 in)
192857.2 mm (2.3 in)
1929107.5 mm (4.2 in)
193068.1 mm (2.7 in)
193185.2 mm (3.4 in)
193286.6 mm (3.4 in)
1933128.5 mm (5.1 in)
1934118.1 mm (4.6 in)
193569.1 mm (2.7 in)
193664.9 mm (2.6 in)
1937126.0 mm (5.0 in)
193894.4 mm (3.7 in)
193973.4 mm (2.9 in)
194091.7 mm (3.6 in)
194175.7 mm (3.0 in)
194293.5 mm (3.7 in)
1943129.3 mm (5.1 in)
194461.1 mm (2.4 in)
194588.2 mm (3.5 in)
1946114.3 mm (4.5 in)
1947133.4 mm (5.3 in)
1948131.7 mm (5.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Omanama by year The longest dry spell of the year at Omanama, 1911 to 1948. The record is 153 days in 1944, marked on the chart; the median year is 44 days. 050100150200192019301940Record: 153 days in 1944
The longest dry spell of the year at Omanama, 1911 to 1948. The record is 153 days in 1944, marked on the chart; the median year is 44 days.
Longest dry spell (CDD) at Omanama by year
YearLongest dry spell (CDD)
191141 days
191270 days
191352 days
191462 days
191569 days
191654 days
191779 days
191834 days
191943 days
192031 days
192141 days
192288 days
192331 days
192435 days
192532 days
192650 days
192771 days
192855 days
192926 days
193027 days
193126 days
193230 days
193339 days
193440 days
1935121 days
193651 days
193744 days
193857 days
193961 days
194069 days
194162 days
194227 days
194351 days
1944153 days
194544 days
194632 days
194725 days
194832 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, 1912 to 1948

A day with at least 56.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 96.1 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Omanama: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years56.2 mm (2.2 in)
5 years69.2 mm (2.7 in)
10 years76.8 mm (3.0 in)
25 years85.3 mm (3.4 in)
50 years91.0 mm (3.6 in)Longer than the 33 years of record
100 years96.1 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 1912 to 1948.

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: 86.9 mm (3.4 in) in 1934; 85.1 mm (3.4 in) in 1933; 84.6 mm (3.3 in) in 1916.

Download the Data

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