Extreme rain in Australia, 26 September to 8 October 2021

Name: Extreme rain in Australia, 26 September to 8 October 2021
Start: 2021-09-26
End: 2021-10-08
Location: Australia

Extreme rain in Australia, 26 September to 8 October 2021: 566 records at 496 stations, peak on 30 September 2021. Closed.

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

Key Facts

Extreme rain in Australia, 26 September to 8 October 2021 set or tied 566 station records at 496 stations.
It ran from 26 September 2021 to 8 October 2021 (13 days) and its peak day was 30 September 2021.
Status: closed.
Madalya set a daily record precipitation of 74.6 mm (2.9 in) on 30 September 2021.
The busiest day was 30 September 2021 with 242 records.
The oldest broken record in the ranked list had stood for 147 years.

Footprint

26 September to 8 October 2021

The area covered by Extreme rain in Australia, 26 September to 8 October 2021 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Extreme rain in Australia, 26 September to 8 October 2021: stations that set records in the event
Station	Type	Value	Date
Madalya	Record daily precipitation	74.6 mm (2.9 in)	2021-09-30
Tambar Springs Post Office	Record daily precipitation	47.8 mm (1.9 in)	2021-09-30
Ultima (Post Office)	Record daily precipitation	50.6 mm (2.0 in)	2021-09-30
Nyngan (Canonbar)	Record daily precipitation	64.4 mm (2.5 in)	2021-09-30
Cranbrook (Cranbrook House)	Record daily precipitation	50.0 mm (2.0 in)	2021-10-01
Hordern Vale	Record daily precipitation	77.0 mm (3.0 in)	2021-09-30
Murray Bridge Comparison	Record daily precipitation	33.3 mm (1.3 in)	2021-09-30
Carabost	Record daily precipitation	37.8 mm (1.5 in)	2021-09-29
Cathcart (Mount Darragh)	Record daily precipitation	65.0 mm (2.6 in)	2021-09-30
Bonshaw (Campbell St)	Record daily precipitation	44.6 mm (1.8 in)	2021-09-30
Eugowra Post Office	Record daily precipitation	49.4 mm (1.9 in)	2021-09-30
Hillston Airport	Record daily precipitation	41.2 mm (1.6 in)	2021-09-29
Pallamallawa Post Office	Record daily precipitation	63.4 mm (2.5 in)	2021-09-30
Greenethorpe (Iandra)	Record daily precipitation	43.3 mm (1.7 in)	2021-09-30
Carnarvon Station	Record daily precipitation	38.2 mm (1.5 in)	2021-10-01
Great Western (Seppelt)	Record daily precipitation	29.5 mm (1.2 in)	2021-10-04
Tailem Bend (River Downs)	Record daily precipitation	54.2 mm (2.1 in)	2021-09-30
Kellevie	Record daily precipitation	50.0 mm (2.0 in)	2021-10-01
Yalgogrin North (Roloma)	Record daily precipitation	39.0 mm (1.5 in)	2021-09-29
Epping	Record daily precipitation	56.0 mm (2.2 in)	2021-10-01

Records per Day

Peak day 242

Records set or tied each day from 26 September 2021 to 8 October 2021. The most in one day was 242 on 30 September 2021.

Records per day during Extreme rain in Australia, 26 September to 8 October 2021
Date	Records
2021-09-26	1
2021-09-27	11
2021-09-28	13
2021-09-29	45
2021-09-30	242
2021-10-01	155
2021-10-02	52
2021-10-03	10
2021-10-04	11
2021-10-05	14
2021-10-06	6
2021-10-07	5
2021-10-08	1

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 26 September to 8 October 2021 ranked by margin
Madalya, 09-30	47.9 mm (1.9 in)
Cathcart (Mount Darragh), 09-30	39.6 mm (1.6 in)
Tambar Springs Post Office, 09-30	37.6 mm (1.5 in)
Pallamallawa Post Office, 09-30	36.2 mm (1.4 in)
Cranbrook (Cranbrook House), 10-01	35.8 mm (1.4 in)
Ultima (Post Office), 09-30	29.3 mm (1.2 in)
Hordern Vale, 09-30	28.0 mm (1.1 in)
Carnarvon Station, 10-01	28.0 mm (1.1 in)
Bonshaw (Campbell St), 09-30	27.8 mm (1.1 in)
Tailem Bend (River Downs), 09-30	27.6 mm (1.1 in)
Carabost, 09-29	23.6 mm (0.9 in)
Nyngan (Canonbar), 09-30	23.0 mm (0.9 in)
Eugowra Post Office, 09-30	21.7 mm (0.9 in)
Kellevie, 10-01	21.3 mm (0.8 in)
Hillston Airport, 09-29	20.4 mm (0.8 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

500 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 September to 8 October 2021
Margin (mm)	Years the old record stood
48	104
38	100
29	92
23	86
36	79
28	51
15	92
40	80
24	123
28	94
22	128
36	48
20	78
28	94
18	128
17	112
28	24
21	88
18	92
18	94
29	54
20	58
18	78
23	35
16	78
31	24
23	88
15	115
32	52
22	46
63	5
23	50
13	116
18	88
17	45
10	115
23	68
9	98
9	42
11	92
16	88
24	42
8	125
12	94
31	22
13	68
18	68
24	31
22	88
10	115
28	38
25	52
9	80
21	40
56	10
15	88
8	115
16	52
17	48
29	46
7	92
23	22
9	94
13	46
11	147
10	114
7	125
42	38
8	94
40	10
42	52
24	35
18	50
24	22
7	94
12	46
5	115
24	48
5	104
5	99
9	90
19	50
15	50
3	111
41	0
31	40
6	121
10	88
22	55
10	88
9	96
19	35
29	8
3	92
8	71
27	48
3	128
9	74
7	80
7	80
4	110
14	40
3	104
16	42
29	4
4	92
5	91
20	28
4	92
5	80
19	71
9	88
3	100
19	48
20	34
5	94
4	92
2	104
7	74
2	110
9	68
5	84
9	47
20	22
27	24
19	52
31	46
2	120
13	46
3	94
11	40
6	88
3	94
1	110
19	42
19	38
3	92
15	42
2	92
4	87
0	108
2	94
4	88
15	48
5	78
12	55
6	64
8	72
5	71
39	35
10	56
28	39
20	44
1	92
5	68
1	92
19	24
17	50
10	55
1	92
4	83
18	34
17	10
12	0
19	16
10	68
7	64
9	31
6	64
4	86
11	63
9	56
15	35
1	87
4	80
6	58
7	63
14	55
11	46
21	43
2	86
11	55
15	52
13	48
11	48
8	46
12	39
25	23
9	46
12	38
17	42
9	52
11	52
13	52
14	24
26	22
4	68
4	68
10	50
21	24

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 26 September to 8 October 2021 compared with similar events
Extreme rain in United States and Mexico, 23 February to 15 March 2019	2,223 records
Extreme rain in United States, 3 to 19 January 2024	2,133 records
Extreme rain in Australia, 7 to 26 March 2021	2,099 records
Extreme rain in United States and Mexico, 29 September to 19 October 2018	1,970 records
Extreme rain in United States, 19 December 2022 to 13 January 2023	1,941 records
Extreme rain in Australia, 26 September to 8 October 2021 (this event)	566 records

Every Record Set

20 of 566

Every record set or tied during Extreme rain in Australia, 26 September to 8 October 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-09-29	Carabost	Record daily precipitation	37.8 mm (1.5 in)	23.6 mm (0.9 in)	123	67 of 100 (Major)
2021-09-29	Hillston Airport	Record daily precipitation	41.2 mm (1.6 in)	20.4 mm (0.8 in)	78	64 of 100 (Major)
2021-09-29	Yalgogrin North (Roloma)	Record daily precipitation	39.0 mm (1.5 in)	18.2 mm (0.7 in)	92	61 of 100 (Major)
2021-09-30	Madalya	Record daily precipitation	74.6 mm (2.9 in)	47.9 mm (1.9 in)	104	80 of 100 (Exceptional)
2021-09-30	Tambar Springs Post Office	Record daily precipitation	47.8 mm (1.9 in)	37.6 mm (1.5 in)	100	79 of 100 (Major)
2021-09-30	Ultima (Post Office)	Record daily precipitation	50.6 mm (2.0 in)	29.3 mm (1.2 in)	92	77 of 100 (Major)
2021-09-30	Nyngan (Canonbar)	Record daily precipitation	64.4 mm (2.5 in)	23.0 mm (0.9 in)	86	76 of 100 (Major)
2021-09-30	Hordern Vale	Record daily precipitation	77.0 mm (3.0 in)	28.0 mm (1.1 in)	51	71 of 100 (Major)
2021-09-30	Murray Bridge Comparison	Record daily precipitation	33.3 mm (1.3 in)	15.3 mm (0.6 in)	92	70 of 100 (Major)
2021-09-30	Cathcart (Mount Darragh)	Record daily precipitation	65.0 mm (2.6 in)	39.6 mm (1.6 in)	80	67 of 100 (Major)
2021-09-30	Bonshaw (Campbell St)	Record daily precipitation	44.6 mm (1.8 in)	27.8 mm (1.1 in)	94	66 of 100 (Major)
2021-09-30	Eugowra Post Office	Record daily precipitation	49.4 mm (1.9 in)	21.7 mm (0.9 in)	128	66 of 100 (Major)
2021-09-30	Pallamallawa Post Office	Record daily precipitation	63.4 mm (2.5 in)	36.2 mm (1.4 in)	48	64 of 100 (Major)
2021-09-30	Greenethorpe (Iandra)	Record daily precipitation	43.3 mm (1.7 in)	17.9 mm (0.7 in)	128	63 of 100 (Major)
2021-09-30	Tailem Bend (River Downs)	Record daily precipitation	54.2 mm (2.1 in)	27.6 mm (1.1 in)	24	62 of 100 (Major)
2021-10-01	Cranbrook (Cranbrook House)	Record daily precipitation	50.0 mm (2.0 in)	35.8 mm (1.4 in)	79	73 of 100 (Major)
2021-10-01	Carnarvon Station	Record daily precipitation	38.2 mm (1.5 in)	28.0 mm (1.1 in)	94	63 of 100 (Major)
2021-10-01	Kellevie	Record daily precipitation	50.0 mm (2.0 in)	21.3 mm (0.8 in)	88	62 of 100 (Major)
2021-10-01	Epping	Record daily precipitation	56.0 mm (2.2 in)	17.9 mm (0.7 in)	94	61 of 100 (Major)
2021-10-04	Great Western (Seppelt)	Record daily precipitation	29.5 mm (1.2 in)	17.3 mm (0.7 in)	112	63 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 566 records the event counts. The counts above use the full total.

Related Headlines

Third party news, headline and link only

Download the Data

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.

Margin (mm)	Years the old record stood
48	104
38	100
29	92
23	86
36	79
28	51
15	92
40	80
24	123
28	94
22	128
36	48
20	78
28	94
18	128
17	112
28	24
21	88
18	92
18	94
29	54
20	58
18	78
23	35
16	78
31	24
23	88
15	115
32	52
22	46
63	5
23	50
13	116
18	88
17	45
10	115
23	68
9	98
9	42
11	92
16	88
24	42
8	125
12	94
31	22
13	68
18	68
24	31
22	88
10	115
28	38
25	52
9	80
21	40
56	10
15	88
8	115
16	52
17	48
29	46
7	92
23	22
9	94
13	46
11	147
10	114
7	125
42	38
8	94
40	10
42	52
24	35
18	50
24	22
7	94
12	46
5	115
24	48
5	104
5	99
9	90
19	50
15	50
3	111
41	0
31	40
6	121
10	88
22	55
10	88
9	96
19	35
29	8
3	92
8	71
27	48
3	128
9	74
7	80
7	80
4	110
14	40
3	104
16	42
29	4
4	92
5	91
20	28
4	92
5	80
19	71
9	88
3	100
19	48
20	34
5	94
4	92
2	104
7	74
2	110
9	68
5	84
9	47
20	22
27	24
19	52
31	46
2	120
13	46
3	94
11	40
6	88
3	94
1	110
19	42
19	38
3	92
15	42
2	92
4	87
0	108
2	94
4	88
15	48
5	78
12	55
6	64
8	72
5	71
39	35
10	56
28	39
20	44
1	92
5	68
1	92
19	24
17	50
10	55
1	92
4	83
18	34
17	10
12	0
19	16
10	68
7	64
9	31
6	64
4	86
11	63
9	56
15	35
1	87
4	80
6	58
7	63
14	55
11	46
21	43
2	86
11	55
15	52
13	48
11	48
8	46
12	39
25	23
9	46
12	38
17	42
9	52
11	52
13	52
14	24
26	22
4	68
4	68
10	50
21	24

Margin (mm)	Years the old record stood
48	104
38	100
29	92
23	86
36	79
28	51
15	92
40	80
24	123
28	94
22	128
36	48
20	78
28	94
18	128
17	112
28	24
21	88
18	92
18	94
29	54
20	58
18	78
23	35
16	78
31	24
23	88
15	115
32	52
22	46
63	5
23	50
13	116
18	88
17	45
10	115
23	68
9	98
9	42
11	92
16	88
24	42
8	125
12	94
31	22
13	68
18	68
24	31
22	88
10	115
28	38
25	52
9	80
21	40
56	10
15	88
8	115
16	52
17	48
29	46
7	92
23	22
9	94
13	46
11	147
10	114
7	125
42	38
8	94
40	10
42	52
24	35
18	50
24	22
7	94
12	46
5	115
24	48
5	104
5	99
9	90
19	50
15	50
3	111
41	0
31	40
6	121
10	88
22	55
10	88
9	96
19	35
29	8
3	92
8	71
27	48
3	128
9	74
7	80
7	80
4	110
14	40
3	104
16	42
29	4
4	92
5	91
20	28
4	92
5	80
19	71
9	88
3	100
19	48
20	34
5	94
4	92
2	104
7	74
2	110
9	68
5	84
9	47
20	22
27	24
19	52
31	46
2	120
13	46
3	94
11	40
6	88
3	94
1	110
19	42
19	38
3	92
15	42
2	92
4	87
0	108
2	94
4	88
15	48
5	78
12	55
6	64
8	72
5	71
39	35
10	56
28	39
20	44
1	92
5	68
1	92
19	24
17	50
10	55
1	92
4	83
18	34
17	10
12	0
19	16
10	68
7	64
9	31
6	64
4	86
11	63
9	56
15	35
1	87
4	80
6	58
7	63
14	55
11	46
21	43
2	86
11	55
15	52
13	48
11	48
8	46
12	39
25	23
9	46
12	38
17	42
9	52
11	52
13	52
14	24
26	22
4	68
4	68
10	50
21	24

Margin (mm)	Years the old record stood
48	104
38	100
29	92
23	86
36	79
28	51
15	92
40	80
24	123
28	94
22	128
36	48
20	78
28	94
18	128
17	112
28	24
21	88
18	92
18	94
29	54
20	58
18	78
23	35
16	78
31	24
23	88
15	115
32	52
22	46
63	5
23	50
13	116
18	88
17	45
10	115
23	68
9	98
9	42
11	92
16	88
24	42
8	125
12	94
31	22
13	68
18	68
24	31
22	88
10	115
28	38
25	52
9	80
21	40
56	10
15	88
8	115
16	52
17	48
29	46
7	92
23	22
9	94
13	46
11	147
10	114
7	125
42	38
8	94
40	10
42	52
24	35
18	50
24	22
7	94
12	46
5	115
24	48
5	104
5	99
9	90
19	50
15	50
3	111
41	0
31	40
6	121
10	88
22	55
10	88
9	96
19	35
29	8
3	92
8	71
27	48
3	128
9	74
7	80
7	80
4	110
14	40
3	104
16	42
29	4
4	92
5	91
20	28
4	92
5	80
19	71
9	88
3	100
19	48
20	34
5	94
4	92
2	104
7	74
2	110
9	68
5	84
9	47
20	22
27	24
19	52
31	46
2	120
13	46
3	94
11	40
6	88
3	94
1	110
19	42
19	38
3	92
15	42
2	92
4	87
0	108
2	94
4	88
15	48
5	78
12	55
6	64
8	72
5	71
39	35
10	56
28	39
20	44
1	92
5	68
1	92
19	24
17	50
10	55
1	92
4	83
18	34
17	10
12	0
19	16
10	68
7	64
9	31
6	64
4	86
11	63
9	56
15	35
1	87
4	80
6	58
7	63
14	55
11	46
21	43
2	86
11	55
15	52
13	48
11	48
8	46
12	39
25	23
9	46
12	38
17	42
9	52
11	52
13	52
14	24
26	22
4	68
4	68
10	50
21	24