Extreme rain in Australia, 22 to 28 August 2021

Name: Extreme rain in Australia, 22 to 28 August 2021
Start: 2021-08-22
End: 2021-08-28
Location: Australia

Extreme rain in Australia, 22 to 28 August 2021: 192 records at 171 stations, peak on 24 August 2021. Closed.

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

Key Facts

Extreme rain in Australia, 22 to 28 August 2021 set or tied 192 station records at 171 stations.
It ran from 22 August 2021 to 28 August 2021 (7 days) and its peak day was 24 August 2021.
Status: closed.
Manildra (George St) set a daily record precipitation of 46.4 mm (1.8 in) on 24 August 2021.
The busiest day was 24 August 2021 with 126 records.
The oldest broken record in the ranked list had stood for 139 years.

Footprint

22 to 28 August 2021

The area covered by Extreme rain in Australia, 22 to 28 August 2021 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Extreme rain in Australia, 22 to 28 August 2021: stations that set records in the event
Station	Type	Value	Date
Manildra (George St)	Record daily precipitation	46.4 mm (1.8 in)	2021-08-24
Bonang	Record daily precipitation	42.6 mm (1.7 in)	2021-08-26
Dandaloo (Tyrie Homestead)	Record daily precipitation	30.0 mm (1.2 in)	2021-08-23
Gooloogong Post Office	Record daily precipitation	32.0 mm (1.3 in)	2021-08-23
Nerriga Composite	Record daily precipitation	39.0 mm (1.5 in)	2021-08-24
Marlo	Record daily precipitation	25.6 mm (1.0 in)	2021-08-26
Cudal Post Office	Record daily precipitation	36.8 mm (1.4 in)	2021-08-24
Eugowra Post Office	Record daily precipitation	34.4 mm (1.4 in)	2021-08-24
Prospect Reservoir	Record daily precipitation	35.0 mm (1.4 in)	2021-08-24
Bettowynd (Condry)	Record daily precipitation	39.0 mm (1.5 in)	2021-08-24
Dellicknora (Tellicura)	Record daily precipitation	25.0 mm (1.0 in)	2021-08-26
Bete Bolong (Russells Estate)	Record daily precipitation	39.8 mm (1.6 in)	2021-08-26
Watagan Central	Record daily precipitation	63.0 mm (2.5 in)	2021-08-24
Marrickville Golf Club	Record daily precipitation	32.0 mm (1.3 in)	2021-08-24
Charleyong	Record daily precipitation	42.6 mm (1.7 in)	2021-08-24
Collarenebri (Dunumbral)	Record daily precipitation	17.5 mm (0.7 in)	2021-08-24
Green Cape Lighthouse	Record daily precipitation	24.2 mm (1.0 in)	2021-08-24
Giffard	Record daily precipitation	22.0 mm (0.9 in)	2021-08-27

Records per Day

Peak day 126

Records set or tied each day from 22 August 2021 to 28 August 2021. The most in one day was 126 on 24 August 2021.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 22 to 28 August 2021 ranked by margin
Watagan Central, 08-24	29.0 mm (1.1 in)
Manildra (George St), 08-24	27.6 mm (1.1 in)
Bete Bolong (Russells Estate), 08-26	25.2 mm (1.0 in)
Charleyong, 08-24	22.8 mm (0.9 in)
Dandaloo (Tyrie Homestead), 08-23	18.8 mm (0.7 in)
Bonang, 08-26	18.7 mm (0.7 in)
Nerriga Composite, 08-24	15.6 mm (0.6 in)
Gooloogong Post Office, 08-23	15.2 mm (0.6 in)
Eugowra Post Office, 08-24	14.3 mm (0.6 in)
Giffard, 08-27	12.1 mm (0.5 in)
Marlo, 08-26	9.6 mm (0.38 in)
Prospect Reservoir, 08-24	9.1 mm (0.36 in)
Bettowynd (Condry), 08-24	8.5 mm (0.33 in)
Cudal Post Office, 08-24	8.4 mm (0.33 in)
Green Cape Lighthouse, 08-24	7.7 mm (0.30 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

192 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, 22 to 28 August 2021
Margin (mm)	Years the old record stood
28	72
12	96
19	95
19	76
15	82
16	100
10	102
8	100
8	103
7	102
14	66
9	110
9	110
7	92
5	106
5	95
25	31
29	56
4	110
23	64
7	82
22	48
10	66
5	110
24	56
18	52
18	48
18	74
11	74
21	56
10	56
1	139
16	58
55	6
7	83
13	74
3	84
5	76
14	36
26	23
7	51
11	48
32	64
21	32
2	82
6	68
7	64
17	44
5	74
3	83
8	38
2	74
0	82
15	22
19	6
12	44
10	32
5	37
8	38
3	72
12	54
18	60
1	68
9	52
15	28
18	18
10	32
1	71
23	18
14	6
20	4
6	64
8	22
8	52
8	58
0	47
13	36
7	51
8	60
7	48
6	56
15	18
10	18
18	8
6	38
13	28
1	51
1	51
6	52
6	44
7	60
8	51
9	18
1	24
2	56
0	60
7	51
16	18
9	18
31	4
24	32
12	4
9	32
0	56
6	18
8	52
1	52
20	32
5	38
12	4
10	18
16	3
14	32
20	18
20	8
10	15
10	18
2	52
22	18
17	32
12	6
10	32
9	6
8	18
6	18
8	28
4	22
7	6
8	18
14	32
10	18
1	44
7	18
20	7
3	32
3	18
8	6
9	32
6	18
7	8
23	4
13	4
7	20
7	32
6	32
5	15
11	6
3	36
7	32
17	18
6	6
7	19
8	23
1	18
15	18
1	36
0	18
7	6
5	18
9	12
11	18
2	32
2	31
1	15
3	6
8	6
5	18
8	4
5	32
1	18
4	6
3	18
1	32
3	6
6	18
1	18
5	8
1	31
5	18
2	18
2	18
2	18
2	12
2	18
12	6
3	6
2	4
4	19
1	8
1	6
7	6
1	4

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 22 to 28 August 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, 22 to 28 August 2021 (this event)	192 records

Every Record Set

20 of 192

Every record set or tied during Extreme rain in Australia, 22 to 28 August 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-08-23	Dandaloo (Tyrie Homestead)	Record daily precipitation	30.0 mm (1.2 in)	18.8 mm (0.7 in)	76	55 of 100 (Notable)
2021-08-23	Gooloogong Post Office	Record daily precipitation	32.0 mm (1.3 in)	15.2 mm (0.6 in)	82	54 of 100 (Notable)
2021-08-24	Manildra (George St)	Record daily precipitation	46.4 mm (1.8 in)	27.6 mm (1.1 in)	72	66 of 100 (Major)
2021-08-24	Nerriga Composite	Record daily precipitation	39.0 mm (1.5 in)	15.6 mm (0.6 in)	100	52 of 100 (Notable)
2021-08-24	Cudal Post Office	Record daily precipitation	36.8 mm (1.4 in)	8.4 mm (0.33 in)	100	51 of 100 (Notable)
2021-08-24	Eugowra Post Office	Record daily precipitation	34.4 mm (1.4 in)	14.3 mm (0.6 in)	66	48 of 100 (Notable)
2021-08-24	Prospect Reservoir	Record daily precipitation	35.0 mm (1.4 in)	9.1 mm (0.36 in)	110	48 of 100 (Notable)
2021-08-24	Bettowynd (Condry)	Record daily precipitation	39.0 mm (1.5 in)	8.5 mm (0.33 in)	110	46 of 100 (Notable)
2021-08-24	Marlo	Record daily precipitation	34.8 mm (1.4 in)	6.9 mm (0.27 in)	92	46 of 100 (Notable)
2021-08-24	Watagan Central	Record daily precipitation	63.0 mm (2.5 in)	29.0 mm (1.1 in)	56	44 of 100 (Notable)
2021-08-24	Marrickville Golf Club	Record daily precipitation	32.0 mm (1.3 in)	3.8 mm (0.15 in)	110	43 of 100 (Notable)
2021-08-24	Charleyong	Record daily precipitation	42.6 mm (1.7 in)	22.8 mm (0.9 in)	64	43 of 100 (Notable)
2021-08-24	Collarenebri (Dunumbral)	Record daily precipitation	17.5 mm (0.7 in)	4.5 mm (0.18 in)	106	20 of 100 (Routine)
2021-08-24	Green Cape Lighthouse	Record daily precipitation	24.2 mm (1.0 in)	7.7 mm (0.30 in)	103	20 of 100 (Routine)
2021-08-26	Bonang	Record daily precipitation	42.6 mm (1.7 in)	18.7 mm (0.7 in)	95	58 of 100 (Notable)
2021-08-26	Marlo	Record daily precipitation	25.6 mm (1.0 in)	9.6 mm (0.38 in)	102	52 of 100 (Notable)
2021-08-26	Dellicknora (Tellicura)	Record daily precipitation	25.0 mm (1.0 in)	4.7 mm (0.19 in)	95	45 of 100 (Notable)
2021-08-26	Bete Bolong (Russells Estate)	Record daily precipitation	39.8 mm (1.6 in)	25.2 mm (1.0 in)	31	45 of 100 (Notable)
2021-08-27	Giffard	Record daily precipitation	22.0 mm (0.9 in)	12.1 mm (0.5 in)	96	20 of 100 (Routine)
2021-08-28	Marlo	Record daily precipitation	21.0 mm (0.8 in)	7.0 mm (0.28 in)	102	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 192 records the event counts. The counts above use the full total.

Related Headlines

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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.

Date	Records
2021-08-22	1
2021-08-23	13
2021-08-24	126
2021-08-25	33
2021-08-26	12
2021-08-27	6
2021-08-28	1

Margin (mm)	Years the old record stood
28	72
12	96
19	95
19	76
15	82
16	100
10	102
8	100
8	103
7	102
14	66
9	110
9	110
7	92
5	106
5	95
25	31
29	56
4	110
23	64
7	82
22	48
10	66
5	110
24	56
18	52
18	48
18	74
11	74
21	56
10	56
1	139
16	58
55	6
7	83
13	74
3	84
5	76
14	36
26	23
7	51
11	48
32	64
21	32
2	82
6	68
7	64
17	44
5	74
3	83
8	38
2	74
0	82
15	22
19	6
12	44
10	32
5	37
8	38
3	72
12	54
18	60
1	68
9	52
15	28
18	18
10	32
1	71
23	18
14	6
20	4
6	64
8	22
8	52
8	58
0	47
13	36
7	51
8	60
7	48
6	56
15	18
10	18
18	8
6	38
13	28
1	51
1	51
6	52
6	44
7	60
8	51
9	18
1	24
2	56
0	60
7	51
16	18
9	18
31	4
24	32
12	4
9	32
0	56
6	18
8	52
1	52
20	32
5	38
12	4
10	18
16	3
14	32
20	18
20	8
10	15
10	18
2	52
22	18
17	32
12	6
10	32
9	6
8	18
6	18
8	28
4	22
7	6
8	18
14	32
10	18
1	44
7	18
20	7
3	32
3	18
8	6
9	32
6	18
7	8
23	4
13	4
7	20
7	32
6	32
5	15
11	6
3	36
7	32
17	18
6	6
7	19
8	23
1	18
15	18
1	36
0	18
7	6
5	18
9	12
11	18
2	32
2	31
1	15
3	6
8	6
5	18
8	4
5	32
1	18
4	6
3	18
1	32
3	6
6	18
1	18
5	8
1	31
5	18
2	18
2	18
2	18
2	12
2	18
12	6
3	6
2	4
4	19
1	8
1	6
7	6
1	4

Margin (mm)	Years the old record stood
28	72
12	96
19	95
19	76
15	82
16	100
10	102
8	100
8	103
7	102
14	66
9	110
9	110
7	92
5	106
5	95
25	31
29	56
4	110
23	64
7	82
22	48
10	66
5	110
24	56
18	52
18	48
18	74
11	74
21	56
10	56
1	139
16	58
55	6
7	83
13	74
3	84
5	76
14	36
26	23
7	51
11	48
32	64
21	32
2	82
6	68
7	64
17	44
5	74
3	83
8	38
2	74
0	82
15	22
19	6
12	44
10	32
5	37
8	38
3	72
12	54
18	60
1	68
9	52
15	28
18	18
10	32
1	71
23	18
14	6
20	4
6	64
8	22
8	52
8	58
0	47
13	36
7	51
8	60
7	48
6	56
15	18
10	18
18	8
6	38
13	28
1	51
1	51
6	52
6	44
7	60
8	51
9	18
1	24
2	56
0	60
7	51
16	18
9	18
31	4
24	32
12	4
9	32
0	56
6	18
8	52
1	52
20	32
5	38
12	4
10	18
16	3
14	32
20	18
20	8
10	15
10	18
2	52
22	18
17	32
12	6
10	32
9	6
8	18
6	18
8	28
4	22
7	6
8	18
14	32
10	18
1	44
7	18
20	7
3	32
3	18
8	6
9	32
6	18
7	8
23	4
13	4
7	20
7	32
6	32
5	15
11	6
3	36
7	32
17	18
6	6
7	19
8	23
1	18
15	18
1	36
0	18
7	6
5	18
9	12
11	18
2	32
2	31
1	15
3	6
8	6
5	18
8	4
5	32
1	18
4	6
3	18
1	32
3	6
6	18
1	18
5	8
1	31
5	18
2	18
2	18
2	18
2	12
2	18
12	6
3	6
2	4
4	19
1	8
1	6
7	6
1	4

Margin (mm)	Years the old record stood
28	72
12	96
19	95
19	76
15	82
16	100
10	102
8	100
8	103
7	102
14	66
9	110
9	110
7	92
5	106
5	95
25	31
29	56
4	110
23	64
7	82
22	48
10	66
5	110
24	56
18	52
18	48
18	74
11	74
21	56
10	56
1	139
16	58
55	6
7	83
13	74
3	84
5	76
14	36
26	23
7	51
11	48
32	64
21	32
2	82
6	68
7	64
17	44
5	74
3	83
8	38
2	74
0	82
15	22
19	6
12	44
10	32
5	37
8	38
3	72
12	54
18	60
1	68
9	52
15	28
18	18
10	32
1	71
23	18
14	6
20	4
6	64
8	22
8	52
8	58
0	47
13	36
7	51
8	60
7	48
6	56
15	18
10	18
18	8
6	38
13	28
1	51
1	51
6	52
6	44
7	60
8	51
9	18
1	24
2	56
0	60
7	51
16	18
9	18
31	4
24	32
12	4
9	32
0	56
6	18
8	52
1	52
20	32
5	38
12	4
10	18
16	3
14	32
20	18
20	8
10	15
10	18
2	52
22	18
17	32
12	6
10	32
9	6
8	18
6	18
8	28
4	22
7	6
8	18
14	32
10	18
1	44
7	18
20	7
3	32
3	18
8	6
9	32
6	18
7	8
23	4
13	4
7	20
7	32
6	32
5	15
11	6
3	36
7	32
17	18
6	6
7	19
8	23
1	18
15	18
1	36
0	18
7	6
5	18
9	12
11	18
2	32
2	31
1	15
3	6
8	6
5	18
8	4
5	32
1	18
4	6
3	18
1	32
3	6
6	18
1	18
5	8
1	31
5	18
2	18
2	18
2	18
2	12
2	18
12	6
3	6
2	4
4	19
1	8
1	6
7	6
1	4