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Built 2026-10-19 (19 October 2026)

Extreme rain in Australia, 26 to 29 September 2026

Extreme rain in Australia, 26 to 29 September 2026: 56 records at 40 stations, peak on 27 September 2026. Closed.

Data as of . Last revised (2026-10-17).

Key Facts

  • Extreme rain in Australia, 26 to 29 September 2026 set or tied 56 station records at 40 stations.
  • It ran from 26 September 2026 to 29 September 2026 (4 days) and its peak day was 27 September 2026.
  • Status: closed.
  • Wattening set a monthly record daily precipitation of 55.4 mm (2.2 in) on 27 September 2026 (provisional).
  • The busiest day was 27 September 2026 with 19 records.
  • The oldest broken record in the ranked list had stood for 129 years.

Footprint

26 to 29 September 2026
Footprint of Extreme rain in Australia, 26 to 29 September 2026 The area covered by Extreme rain in Australia, 26 to 29 September 2026 is outlined, with 17 of the stations that set records marked, coloured by record type.
The area covered by Extreme rain in Australia, 26 to 29 September 2026 is outlined, with 17 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Extreme rain in Australia, 26 to 29 September 2026: stations that set records in the event
StationTypeValueDate
WatteningRecord daily precipitation55.4 mm (2.2 in)2026-09-27
EdjudinaRecord daily precipitation50.6 mm (2.0 in)2026-09-27
Kalgoorlie-Boulder AirportRecord daily precipitation29.4 mm (1.2 in)2026-09-27
Newdegate Research StationRecord daily precipitation34.0 mm (1.3 in)2026-09-28
GairdnerRecord daily precipitation52.6 mm (2.1 in)2026-09-27
RichfieldsRecord daily precipitation29.0 mm (1.1 in)2026-09-26
JacupRecord daily precipitation44.6 mm (1.8 in)2026-09-27
BolgartRecord daily precipitation28.0 mm (1.1 in)2026-09-27
MordettaRecord daily precipitation37.2 mm (1.5 in)2026-09-28
Walpole ForestryRecord daily precipitation32.8 mm (1.3 in)2026-09-29
HopetounRecord daily precipitation33.0 mm (1.3 in)2026-09-27
Friars WellRecord daily precipitation20.6 mm (0.8 in)2026-09-26
NangeenanRecord daily precipitation22.0 mm (0.9 in)2026-09-26
MainnerupRecord daily precipitation20.2 mm (0.8 in)2026-09-26
NalbarraRecord daily precipitation13.0 mm (0.5 in)2026-09-27
PullagarooRecord daily precipitation11.8 mm (0.5 in)2026-09-27
Paynes FindRecord daily precipitation9.8 mm (0.39 in)2026-09-27
BulongRecord daily precipitation20.0 mm (0.8 in)2026-09-27
Leinster AeroRecord daily precipitation18.2 mm (0.7 in)2026-09-27
Exmouth TownRecord daily precipitation9.2 mm (0.36 in)2026-09-28
Carey DownsRecord daily precipitation1.0 mm (0.04 in)2026-09-28
ArdathRecord daily precipitation19.0 mm (0.7 in)2026-09-28
BullfinchRecord daily precipitation6.5 mm (0.26 in)2026-09-28
Bulga DownsRecord daily precipitation9.0 mm (0.35 in)2026-09-28
KoolineRecord daily precipitation11.0 mm (0.4 in)2026-09-29
Learmonth AirportRecord daily precipitation11.6 mm (0.5 in)2026-09-29
Mount StuartRecord daily precipitation8.0 mm (0.31 in)2026-09-29
WilliamburyRecord daily precipitation16.0 mm (0.6 in)2026-09-29
BryahRecord daily precipitation13.2 mm (0.5 in)2026-09-29
BroomehillRecord daily precipitation11.0 mm (0.4 in)2026-09-29
Hopetoun NorthRecord daily precipitation28.8 mm (1.1 in)2026-09-27
NalyerlupRecord daily precipitation30.0 mm (1.2 in)2026-09-27
MurchisonRecord daily precipitation1.8 mm (0.07 in)2026-09-26
Mount Magnet AeroRecord daily precipitation7.2 mm (0.28 in)2026-09-27
NunileRecord daily precipitation13.2 mm (0.5 in)2026-09-27
Frankland VineyardsRecord daily precipitation9.4 mm (0.37 in)2026-09-29
Rocky GullyRecord daily precipitation18.4 mm (0.7 in)2026-09-28
Amery AcresRecord daily precipitation8.8 mm (0.35 in)2026-09-28
BunburyRecord daily precipitation10.6 mm (0.4 in)2026-09-28
Mount WalkerRecord daily precipitation5.0 mm (0.20 in)2026-09-28

Records per Day

Peak day 19
Records per day during Extreme rain in Australia, 26 to 29 September 2026 Records set or tied each day from 26 September 2026 to 29 September 2026. The most in one day was 19 on 27 September 2026. 0 5 10 15 20 09-2609-2709-2809-29
Records set or tied each day from 26 September 2026 to 29 September 2026. The most in one day was 19 on 27 September 2026.
Records per day during Extreme rain in Australia, 26 to 29 September 2026
DateRecords
2026-09-268
2026-09-2719
2026-09-2817
2026-09-2912

Top Records by Margin

Margin over the record replaced
Top records of Extreme rain in Australia, 26 to 29 September 2026 ranked by margin
Gairdner, 09-2732.8 mm (1.3 in)
Wattening, 09-2725.4 mm (1.0 in)
Newdegate Research Station, 09-2825.4 mm (1.0 in)
Kalgoorlie-Boulder Airport, 09-2719.4 mm (0.8 in)
Edjudina, 09-2715.6 mm (0.6 in)
Leinster Aero, 09-2715.0 mm (0.6 in)
Williambury, 09-2914.8 mm (0.6 in)
Leinster Aero, 09-2814.8 mm (0.6 in)
Mainnerup, 09-2614.6 mm (0.6 in)
Leinster Aero, 09-2912.6 mm (0.5 in)
Learmonth Airport, 09-2911.6 mm (0.5 in)
Kooline, 09-2911.0 mm (0.4 in)
Jacup, 09-279.8 mm (0.39 in)
Exmouth Town, 09-289.2 mm (0.36 in)
Richfields, 09-268.9 mm (0.35 in)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Extreme rain in Australia, 26 to 29 September 2026 56 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 38 75 113 150 010203040 Margin (mm) Years the old record stood
56 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Extreme rain in Australia, 26 to 29 September 2026
Margin (mm)Years the old record stood
25113
1280
1641
1540
1929
11129
2512
777
8124
597
876
334
1324
957
1552
2100
961
151
151
1022
1115
761
556
377
652
179
618
171
813
1152
161
357
617
829
731
141
339
821
347
317
217
94
68
139
329
71
329
129
127
127
024
127
49
09
29
28

Compared With Other Events

Station records per event
Station records in Extreme rain in Australia, 26 to 29 September 2026 compared with similar events
Extreme rain in United States and Mexico, 23 February to 15 March 20192,223 records
Extreme rain in United States, 3 to 19 January 20242,133 records
Extreme rain in Australia, 7 to 26 March 20212,099 records
Extreme rain in United States and Mexico, 29 September to 19 October 20181,970 records
Extreme rain in United States, 19 December 2022 to 13 January 20231,941 records
Extreme rain in Australia, 26 to 29 September 2026 (this event)56 records

Every Record Set

51 of 56
Every record set or tied during Extreme rain in Australia, 26 to 29 September 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-09-26RichfieldsRecord daily precipitation (provisional)29.0 mm (1.1 in)8.9 mm (0.35 in)6143 of 100 (Notable)
2026-09-26Friars WellRecord daily precipitation (provisional)20.6 mm (0.8 in)5.6 mm (0.22 in)1720 of 100 (Routine)
2026-09-26NangeenanRecord daily precipitation (provisional)22.0 mm (0.9 in)3.2 mm (0.13 in)1720 of 100 (Routine)
2026-09-26MainnerupRecord daily precipitation (provisional)20.2 mm (0.8 in)14.6 mm (0.6 in)5220 of 100 (Routine)
2026-09-26EdjudinaRecord daily precipitation (provisional)3.4 mm (0.13 in)1.6 mm (0.06 in)10020 of 100 (Routine)
2026-09-26Kalgoorlie-Boulder AirportRecord daily precipitation (provisional)15.6 mm (0.6 in)6.2 mm (0.24 in)5220 of 100 (Routine)
2026-09-26MurchisonRecord daily precipitation (provisional)1.8 mm (0.07 in)1.2 mm (0.05 in)3917 of 100 (Routine)
2026-09-27WatteningRecord daily precipitation (provisional)55.4 mm (2.2 in)25.4 mm (1.0 in)11390 of 100 (Exceptional)
2026-09-27EdjudinaRecord daily precipitation (provisional)50.6 mm (2.0 in)15.6 mm (0.6 in)4163 of 100 (Major)
2026-09-27Kalgoorlie-Boulder AirportRecord daily precipitation (provisional)29.4 mm (1.2 in)19.4 mm (0.8 in)2956 of 100 (Notable)
2026-09-27GairdnerRecord daily precipitation (provisional)52.6 mm (2.1 in)32.8 mm (1.3 in)447 of 100 (Notable)
2026-09-27JacupRecord daily precipitation (provisional)44.6 mm (1.8 in)9.8 mm (0.39 in)2242 of 100 (Notable)
2026-09-27BolgartRecord daily precipitation (provisional)28.0 mm (1.1 in)2.6 mm (0.10 in)7738 of 100 (Notable)
2026-09-27HopetounRecord daily precipitation (provisional)33.0 mm (1.3 in)2.8 mm (0.11 in)3925 of 100 (Routine)
2026-09-27NalbarraRecord daily precipitation (provisional)13.0 mm (0.5 in)6.9 mm (0.27 in)6120 of 100 (Routine)
2026-09-27PullagarooRecord daily precipitation (provisional)11.8 mm (0.5 in)1.1 mm (0.04 in)6120 of 100 (Routine)
2026-09-27Paynes FindRecord daily precipitation (provisional)9.8 mm (0.39 in)2.0 mm (0.08 in)1720 of 100 (Routine)
2026-09-27MainnerupRecord daily precipitation (provisional)17.6 mm (0.7 in)2.6 mm (0.10 in)4720 of 100 (Routine)
2026-09-27BulongRecord daily precipitation (provisional)20.0 mm (0.8 in)8.1 mm (0.32 in)7620 of 100 (Routine)
2026-09-27Leinster AeroRecord daily precipitation (provisional)18.2 mm (0.7 in)15.0 mm (0.6 in)120 of 100 (Routine)
2026-09-27Hopetoun NorthRecord daily precipitation (provisional)28.8 mm (1.1 in)9.4 mm (0.37 in)419 of 100 (Routine)
2026-09-27NalyerlupRecord daily precipitation (provisional)30.0 mm (1.2 in)6.0 mm (0.24 in)818 of 100 (Routine)
2026-09-27Mount Magnet AeroRecord daily precipitation (provisional)7.2 mm (0.28 in)3.2 mm (0.13 in)2917 of 100 (Routine)
2026-09-27NunileRecord daily precipitation (provisional)13.2 mm (0.5 in)2.6 mm (0.10 in)2916 of 100 (Routine)
2026-09-27MurchisonRecord daily precipitation (provisional)5.8 mm (0.23 in)1.2 mm (0.05 in)2914 of 100 (Routine)
2026-09-28Newdegate Research StationRecord daily precipitation (provisional)34.0 mm (1.3 in)25.4 mm (1.0 in)1250 of 100 (Notable)
2026-09-28MordettaRecord daily precipitation (provisional)37.2 mm (1.5 in)5.8 mm (0.23 in)1833 of 100 (Routine)
2026-09-28Exmouth TownRecord daily precipitation (provisional)9.2 mm (0.36 in)9.2 mm (0.36 in)5720 of 100 (Routine)
2026-09-28Carey DownsRecord daily precipitation (provisional)1.0 mm (0.04 in)1.0 mm (0.04 in)11520 of 100 (Routine)
2026-09-28Paynes FindRecord daily precipitation (provisional)12.2 mm (0.5 in)1.2 mm (0.05 in)4120 of 100 (Routine)
2026-09-28ArdathRecord daily precipitation (provisional)19.0 mm (0.7 in)7.1 mm (0.28 in)7720 of 100 (Routine)
2026-09-28JacupRecord daily precipitation (provisional)20.8 mm (0.8 in)7.8 mm (0.31 in)2920 of 100 (Routine)
2026-09-28BullfinchRecord daily precipitation (provisional)6.5 mm (0.26 in)0.9 mm (0.04 in)7120 of 100 (Routine)
2026-09-28Bulga DownsRecord daily precipitation (provisional)9.0 mm (0.35 in)8.0 mm (0.31 in)1320 of 100 (Routine)
2026-09-28Leinster AeroRecord daily precipitation (provisional)18.8 mm (0.7 in)14.8 mm (0.6 in)120 of 100 (Routine)
2026-09-28NunileRecord daily precipitation (provisional)7.8 mm (0.31 in)1.0 mm (0.04 in)2713 of 100 (Routine)
2026-09-28Mount Magnet AeroRecord daily precipitation (provisional)1.2 mm (0.05 in)0.6 mm (0.02 in)2712 of 100 (Routine)
2026-09-28Rocky GullyRecord daily precipitation (provisional)18.4 mm (0.7 in)4.2 mm (0.17 in)911 of 100 (Routine)
2026-09-28Amery AcresRecord daily precipitation (provisional)8.8 mm (0.35 in)0.2 mm (0.01 in)911 of 100 (Routine)
2026-09-28NalyerlupRecord daily precipitation (provisional)11.0 mm (0.4 in)2.0 mm (0.08 in)910 of 100 (Routine)
2026-09-28BunburyRecord daily precipitation (provisional)10.6 mm (0.4 in)1.8 mm (0.07 in)87 of 100 (Routine)
2026-09-28Mount WalkerRecord daily precipitation (tie) (provisional)5.0 mm (0.20 in)tie273 of 100 (Routine)
2026-09-29Walpole ForestryRecord daily precipitation (provisional)32.8 mm (1.3 in)11.0 mm (0.4 in)5231 of 100 (Routine)
2026-09-29KoolineRecord daily precipitation (provisional)11.0 mm (0.4 in)11.0 mm (0.4 in)12920 of 100 (Routine)
2026-09-29Learmonth AirportRecord daily precipitation (provisional)11.6 mm (0.5 in)11.6 mm (0.5 in)8020 of 100 (Routine)
2026-09-29Mount StuartRecord daily precipitation (provisional)8.0 mm (0.31 in)8.0 mm (0.31 in)12420 of 100 (Routine)
2026-09-29WilliamburyRecord daily precipitation (provisional)16.0 mm (0.6 in)14.8 mm (0.6 in)4020 of 100 (Routine)
2026-09-29BryahRecord daily precipitation (provisional)13.2 mm (0.5 in)13.2 mm (0.5 in)10520 of 100 (Routine)
2026-09-29BroomehillRecord daily precipitation (provisional)11.0 mm (0.4 in)4.6 mm (0.18 in)9720 of 100 (Routine)
2026-09-29Leinster AeroRecord daily precipitation (provisional)14.6 mm (0.6 in)12.6 mm (0.5 in)2420 of 100 (Routine)
2026-09-29Frankland VineyardsRecord daily precipitation (provisional)9.4 mm (0.37 in)0.4 mm (0.02 in)2412 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 51 of the 56 records the event counts. The counts above use the full total.

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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 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.