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Built 2026-10-17 (17 October 2026)

Immarna Weather Records (ASN00018145)

Record envelope, standing records and threshold days for Immarna (ASN00018145), Australia, with 64 years of record.

Key Facts for Immarna

  • Immarna (ASN00018145) is a weather station in Australia at -30.50 latitude and 132.15 longitude, 213 m (700 ft) above sea level.
  • The station reports from 1918 to 1981, 64 years of record.
  • 0 records set at Immarna still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Immarna set a daily record precipitation of 11.6 mm (0.5 in) on 12 November 1981.

About the Station

  • Location: Australia, -30.50 latitude, 132.15 longitude.
  • Elevation: 213 m (700 ft).
  • Period of record: 1918 to 1981, 64 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Immarna, with 2026 drawn through them The band shows the record high and record low for each calendar day at Immarna. 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 Immarna. 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 Immarna, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
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Juln/an/an/an/a
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Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

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

Wettest Day of Each Month

Feb: 76.2 mm (3.0 in)
Record daily precipitation for each month at Immarna The wettest day on record for each calendar month at Immarna. The most was 76.2 mm (3.0 in) on 28 February 1921. 020406080 Jan: 36.8 mm (1.4 in), 30 January 1942 Jan Feb: 76.2 mm (3.0 in), 28 February 1921 Feb Mar: 69.9 mm (2.8 in), 31 March 1940 Mar Apr: 34.3 mm (1.4 in), 9 April 1961 Apr May: 49.3 mm (1.9 in), 26 May 1936 May Jun: 50.8 mm (2.0 in), 15 June 1955 Jun Jul: 24.1 mm (0.9 in), 16 July 1973 Jul Aug: 36.6 mm (1.4 in), 18 August 1943 Aug Sep: 49.0 mm (1.9 in), 26 September 1964 Sep Oct: 46.5 mm (1.8 in), 14 October 1964 Oct Nov: 58.4 mm (2.3 in), 27 November 1958 Nov Dec: 47.0 mm (1.9 in), 19 December 1950 Dec
The wettest day on record for each calendar month at Immarna. The most was 76.2 mm (3.0 in) on 28 February 1921.
Record daily precipitation for each month at Immarna
MonthRecord daily precipitation (mm)Date
Jan36.8 mm (1.4 in)30 January 1942
Feb76.2 mm (3.0 in)28 February 1921
Mar69.9 mm (2.8 in)31 March 1940
Apr34.3 mm (1.4 in)9 April 1961
May49.3 mm (1.9 in)26 May 1936
Jun50.8 mm (2.0 in)15 June 1955
Jul24.1 mm (0.9 in)16 July 1973
Aug36.6 mm (1.4 in)18 August 1943
Sep49.0 mm (1.9 in)26 September 1964
Oct46.5 mm (1.8 in)14 October 1964
Nov58.4 mm (2.3 in)27 November 1958
Dec47.0 mm (1.9 in)19 December 1950

Latest Records

20
Latest records at Immarna
DateStationRecordValueBeat old record byOld record stoodSignificance
12 November 1981Immarna, AUdaily rain11.6 mm (0.5 in)1.4 mm (0.06 in)10 years10 of 100 (Routine)
23 June 1981Immarna, AUdaily rain9.8 mm (0.39 in)2.8 mm (0.11 in)6 years11 of 100 (Routine)
25 March 1981Immarna, AUdaily rain8.5 mm (0.33 in)6.7 mm (0.26 in)36 years20 of 100 (Routine)
24 March 1981Immarna, AUdaily rain16.4 mm (0.6 in)1.4 mm (0.06 in)39 years18 of 100 (Routine)
13 February 1981Immarna, AUdaily rain54.0 mm (2.1 in)40.0 mm (1.6 in)14 years42 of 100 (Notable)
3 February 1981Immarna, AUdaily rain9.4 mm (0.37 in)6.4 mm (0.25 in)28 years19 of 100 (Routine)
9 January 1981Immarna, AUdaily rain17.2 mm (0.7 in)17.2 mm (0.7 in)62 years20 of 100 (Routine)
2 December 1980Immarna, AUdaily rain30.6 mm (1.2 in)3.9 mm (0.15 in)14 years14 of 100 (Routine)
4 November 1980Immarna, AUdaily rain48.0 mm (1.9 in)32.3 mm (1.3 in)38 years53 of 100 (Notable)
27 July 1980Immarna, AUdaily rain23.0 mm (0.9 in)13.9 mm (0.5 in)9 years20 of 100 (Routine)
30 May 1980Immarna, AUdaily rain22.5 mm (0.9 in)13.6 mm (0.5 in)18 years20 of 100 (Routine)
19 November 1979Immarna, AUdaily rain7.1 mm (0.28 in)1.1 mm (0.04 in)2 years7 of 100 (Routine)
24 September 1979Immarna, AUdaily rain40.2 mm (1.6 in)32.6 mm (1.3 in)16 years51 of 100 (Notable)
2 September 1979Immarna, AUdaily rain19.6 mm (0.8 in)4.4 mm (0.17 in)22 years18 of 100 (Routine)
21 August 1979Immarna, AUdaily rain11.8 mm (0.5 in)3.7 mm (0.15 in)37 years20 of 100 (Routine)
25 May 1979Immarna, AUdaily rain10.0 mm (0.4 in)2.4 mm (0.09 in)29 years18 of 100 (Routine)
24 May 1979Immarna, AUdaily rain28.0 mm (1.1 in)19.1 mm (0.8 in)5 years39 of 100 (Notable)
1 May 1979Immarna, AUdaily rain14.0 mm (0.6 in)11.2 mm (0.4 in)5 years20 of 100 (Routine)
24 April 1979Immarna, AUdaily rain26.0 mm (1.0 in)15.8 mm (0.6 in)24 years40 of 100 (Notable)
2 January 1979Immarna, AUdaily rain0.2 mm (0.01 in)0.2 mm (0.01 in)60 years20 of 100 (Routine)

Extremes by Year

1918 to 1981
Yearly extremes at Immarna: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)76.2 mm (3.0 in)192126.4 mm (1.0 in)63
Wettest five days (Rx5day)128.6 mm (5.1 in)193739.2 mm (1.5 in)62
Longest dry spell (CDD)126 days196553 days63

Wettest day (Rx1day)

Wettest day (Rx1day) at Immarna by year The wettest day of the year at Immarna, 1918 to 1981. The record is 76.2 mm (3.0 in) in 1921, marked on the chart; the median year is 26.4 mm (1.0 in). 0204060801920194019601980Record: 76.2 mm (3.0 in) in 1921
The wettest day of the year at Immarna, 1918 to 1981. The record is 76.2 mm (3.0 in) in 1921, marked on the chart; the median year is 26.4 mm (1.0 in).
Wettest day (Rx1day) at Immarna by year
YearWettest day (Rx1day)
191821.6 mm (0.9 in)
191928.4 mm (1.1 in)
192016.5 mm (0.6 in)
192176.2 mm (3.0 in)
192231.8 mm (1.3 in)
192314.7 mm (0.6 in)
192436.8 mm (1.4 in)
192525.4 mm (1.0 in)
192612.2 mm (0.5 in)
192711.7 mm (0.5 in)
192822.1 mm (0.9 in)
192911.4 mm (0.4 in)
193034.3 mm (1.4 in)
193135.6 mm (1.4 in)
193233.5 mm (1.3 in)
193322.9 mm (0.9 in)
193412.7 mm (0.5 in)
193526.4 mm (1.0 in)
193649.3 mm (1.9 in)
193738.1 mm (1.5 in)
193828.4 mm (1.1 in)
193918.5 mm (0.7 in)
194069.9 mm (2.8 in)
194119.8 mm (0.8 in)
194238.1 mm (1.5 in)
194336.6 mm (1.4 in)
194412.7 mm (0.5 in)
194540.6 mm (1.6 in)
194640.6 mm (1.6 in)
19478.9 mm (0.35 in)
194819.1 mm (0.8 in)
194921.6 mm (0.9 in)
195047.0 mm (1.9 in)
195119.3 mm (0.8 in)
195216.8 mm (0.7 in)
195317.3 mm (0.7 in)
195413.2 mm (0.5 in)
195550.8 mm (2.0 in)
195634.3 mm (1.4 in)
19578.9 mm (0.35 in)
195858.4 mm (2.3 in)
195920.3 mm (0.8 in)
196024.9 mm (1.0 in)
196134.3 mm (1.4 in)
196225.4 mm (1.0 in)
196319.1 mm (0.8 in)
196449.0 mm (1.9 in)
196516.0 mm (0.6 in)
196626.7 mm (1.1 in)
196731.8 mm (1.3 in)
196838.9 mm (1.5 in)
196925.4 mm (1.0 in)
197017.8 mm (0.7 in)
197124.1 mm (0.9 in)
197214.2 mm (0.6 in)
197334.3 mm (1.4 in)
197439.0 mm (1.5 in)
197556.0 mm (2.2 in)
197652.0 mm (2.0 in)
19780.0 mm (0.00 in)
197940.2 mm (1.6 in)
198048.0 mm (1.9 in)
198154.0 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Immarna by year The wettest five days of the year at Immarna, 1918 to 1981. The record is 128.6 mm (5.1 in) in 1937, marked on the chart; the median year is 39.2 mm (1.5 in). 0501001501920194019601980Record: 128.6 mm (5.1 in) in 1937
The wettest five days of the year at Immarna, 1918 to 1981. The record is 128.6 mm (5.1 in) in 1937, marked on the chart; the median year is 39.2 mm (1.5 in).
Wettest five days (Rx5day) at Immarna by year
YearWettest five days (Rx5day)
191828.7 mm (1.1 in)
191930.5 mm (1.2 in)
192030.3 mm (1.2 in)
1921101.8 mm (4.0 in)
192234.3 mm (1.4 in)
192314.7 mm (0.6 in)
192436.8 mm (1.4 in)
192538.6 mm (1.5 in)
192612.2 mm (0.5 in)
192726.6 mm (1.0 in)
192822.1 mm (0.9 in)
192912.7 mm (0.5 in)
193041.7 mm (1.6 in)
193151.6 mm (2.0 in)
193233.5 mm (1.3 in)
193329.8 mm (1.2 in)
193421.8 mm (0.9 in)
193531.5 mm (1.2 in)
193656.9 mm (2.2 in)
1937128.6 mm (5.1 in)
193842.9 mm (1.7 in)
193959.2 mm (2.3 in)
194077.5 mm (3.1 in)
194143.1 mm (1.7 in)
194252.9 mm (2.1 in)
194345.7 mm (1.8 in)
194426.7 mm (1.1 in)
194562.0 mm (2.4 in)
194642.1 mm (1.7 in)
194711.5 mm (0.5 in)
194826.7 mm (1.1 in)
194933.8 mm (1.3 in)
195047.0 mm (1.9 in)
195121.1 mm (0.8 in)
195221.2 mm (0.8 in)
195326.4 mm (1.0 in)
195420.4 mm (0.8 in)
1955100.4 mm (4.0 in)
195643.2 mm (1.7 in)
195717.5 mm (0.7 in)
195876.7 mm (3.0 in)
195926.4 mm (1.0 in)
196025.6 mm (1.0 in)
196140.7 mm (1.6 in)
196243.2 mm (1.7 in)
196336.1 mm (1.4 in)
196494.9 mm (3.7 in)
196518.5 mm (0.7 in)
196673.6 mm (2.9 in)
196755.4 mm (2.2 in)
196839.7 mm (1.6 in)
196944.2 mm (1.7 in)
197021.6 mm (0.9 in)
197130.7 mm (1.2 in)
197231.7 mm (1.2 in)
197344.0 mm (1.7 in)
197446.0 mm (1.8 in)
197590.0 mm (3.5 in)
197652.0 mm (2.0 in)
1978n/a
197958.7 mm (2.3 in)
198055.1 mm (2.2 in)
198164.9 mm (2.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Immarna by year The longest dry spell of the year at Immarna, 1918 to 1981. The record is 126 days in 1965, marked on the chart; the median year is 53 days. 0501001501920194019601980Record: 126 days in 1965
The longest dry spell of the year at Immarna, 1918 to 1981. The record is 126 days in 1965, marked on the chart; the median year is 53 days.
Longest dry spell (CDD) at Immarna by year
YearLongest dry spell (CDD)
191840 days
191942 days
192048 days
192153 days
192292 days
192349 days
192445 days
192545 days
192675 days
192749 days
192868 days
192978 days
193048 days
193147 days
193240 days
193344 days
193452 days
193532 days
193698 days
1937115 days
193865 days
193946 days
194052 days
194131 days
194227 days
194343 days
194478 days
194559 days
194657 days
194775 days
194893 days
194950 days
195098 days
195161 days
195251 days
195359 days
195475 days
195554 days
1956105 days
195778 days
195853 days
195951 days
196043 days
196197 days
196273 days
1963120 days
196494 days
1965126 days
196647 days
196779 days
196848 days
196940 days
1970121 days
197173 days
197277 days
197340 days
197477 days
197550 days
197646 days
19784 days
197954 days
198034 days
198153 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

57 years, 1920 to 1981

A day with at least 28.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 80.8 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Immarna: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years28.0 mm (1.1 in)
5 years41.7 mm (1.6 in)
10 years50.9 mm (2.0 in)
25 years62.8 mm (2.5 in)
50 years71.7 mm (2.8 in)
100 years80.8 mm (3.2 in)Longer than the 57 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, 57 years of values from 1920 to 1981.

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: 76.2 mm (3.0 in) in 1921; 69.9 mm (2.8 in) in 1940; 58.4 mm (2.3 in) in 1958.

Download the Data

  • Data for Immarna standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Immarna 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).