Extreme rain in Australia, 4 to 12 December 2021

Name: Extreme rain in Australia, 4 to 12 December 2021
Start: 2021-12-04
End: 2021-12-12
Location: Australia

Extreme rain in Australia, 4 to 12 December 2021: 168 records at 160 stations, peak on 10 December 2021. Closed.

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

Key Facts

Extreme rain in Australia, 4 to 12 December 2021 set or tied 168 station records at 160 stations.
It ran from 4 December 2021 to 12 December 2021 (9 days) and its peak day was 10 December 2021.
Status: closed.
Nimmitabel Wastewater Treatmen set a daily record precipitation of 70.0 mm (2.8 in) on 10 December 2021.
The busiest day was 10 December 2021 with 88 records.
The oldest broken record in the ranked list had stood for 131 years.

Footprint

4 to 12 December 2021

The area covered by Extreme rain in Australia, 4 to 12 December 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, 4 to 12 December 2021: stations that set records in the event
Station	Type	Value	Date
Nimmitabel Wastewater Treatmen	Record daily precipitation	70.0 mm (2.8 in)	2021-12-10
Bendalong Stp	Record daily precipitation	249.0 mm (9.8 in)	2021-12-10
Batemans Bay - Buckenbowra	Record daily precipitation	200.0 mm (7.9 in)	2021-12-10
Marlo	Record daily precipitation	40.1 mm (1.6 in)	2021-12-10
Candelo Post Office	Record daily precipitation	124.0 mm (4.9 in)	2021-12-09
Tumut (Wattle Cres)	Record daily precipitation	142.0 mm (5.6 in)	2021-12-10
Bettowynd (Condry)	Record daily precipitation	82.0 mm (3.2 in)	2021-12-10
Bobin (Bobin Creek)	Record daily precipitation	154.8 mm (6.1 in)	2021-12-09
Brogo (Hawks Head Road)	Record daily precipitation	190.0 mm (7.5 in)	2021-12-10
Lower Boro (Calderwood)	Record daily precipitation	87.2 mm (3.4 in)	2021-12-10
Snowball	Record daily precipitation	87.0 mm (3.4 in)	2021-12-10
Majors Creek (the Old School)	Record daily precipitation	83.0 mm (3.3 in)	2021-12-10
Cooma (Myalla)	Record daily precipitation	87.6 mm (3.4 in)	2021-12-10
Berridale (Myack Street)	Record daily precipitation	58.2 mm (2.3 in)	2021-12-10
Wulgulmerang (Pleasant View)	Record daily precipitation	60.0 mm (2.4 in)	2021-12-10
Avoca Beach Bowling Club	Record daily precipitation	92.0 mm (3.6 in)	2021-12-10
Countegany (Gaerloch)	Record daily precipitation	116.5 mm (4.6 in)	2021-12-10
Bungonia (Inverary Park)	Record daily precipitation	62.0 mm (2.4 in)	2021-12-10
Cooma Airport AWS	Record daily precipitation	64.6 mm (2.5 in)	2021-12-10
Monto Township	Record daily precipitation	56.6 mm (2.2 in)	2021-12-06

Records per Day

Peak day 88

Records set or tied each day from 4 December 2021 to 12 December 2021. The most in one day was 88 on 10 December 2021.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 4 to 12 December 2021 ranked by margin
Bendalong Stp, 12-10	106.8 mm (4.2 in)
Candelo Post Office, 12-09	87.9 mm (3.5 in)
Avoca Beach Bowling Club, 12-10	75.0 mm (3.0 in)
Batemans Bay - Buckenbowra, 12-10	70.0 mm (2.8 in)
Snowball, 12-10	68.4 mm (2.7 in)
Brogo (Hawks Head Road), 12-10	65.5 mm (2.6 in)
Majors Creek (the Old School), 12-10	57.8 mm (2.3 in)
Nimmitabel Wastewater Treatmen, 12-10	50.2 mm (2.0 in)
Cooma Airport AWS, 12-10	47.2 mm (1.9 in)
Berridale (Myack Street), 12-10	44.0 mm (1.7 in)
Bettowynd (Condry), 12-10	43.1 mm (1.7 in)
Countegany (Gaerloch), 12-10	42.1 mm (1.7 in)
Wulgulmerang (Pleasant View), 12-10	40.4 mm (1.6 in)
Bobin (Bobin Creek), 12-09	39.2 mm (1.5 in)
Monto Township, 12-06	36.8 mm (1.4 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

168 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, 4 to 12 December 2021
Margin (mm)	Years the old record stood
50	111
107	58
70	61
27	111
88	51
34	9
43	51
39	58
66	51
20	61
68	19
58	19
23	51
44	32
40	32
75	27
42	51
16	131
47	32
37	59
66	22
16	87
13	96
168	16
26	51
27	7
19	51
39	32
5	99
3	111
15	51
21	7
3	104
10	90
40	22
19	51
16	51
19	36
29	22
46	16
8	74
16	51
2	91
17	36
3	88
13	51
18	51
11	51
8	56
13	71
31	27
14	51
31	22
25	51
15	51
21	19
35	10
2	51
14	51
25	12
9	50
1	70
3	56
18	19
21	22
6	51
5	56
6	51
12	51
11	48
15	36
19	19
7	51
18	7
1	62
5	48
6	48
6	51
2	51
17	28
25	11
10	7
5	39
27	7
8	28
7	51
12	7
7	30
11	36
9	28
6	56
13	27
8	32
5	51
11	27
7	32
30	11
3	51
8	27
4	51
14	16
8	16
2	51
13	22
2	51
18	24
8	36
28	4
17	16
2	48
4	27
1	51
5	32
5	20
2	48
3	46
2	32
9	32
6	32
0	51
3	7
18	12
6	36
7	32
1	36
7	35
3	40
4	28
5	36
5	28
6	20
3	32
13	16
4	36
25	12
5	28
6	19
3	36
1	7
4	38
3	19
1	32
3	32
2	28
1	32
5	16
9	6
3	14
4	19
4	12
3	16
2	26
4	22
6	16
6	12
11	0
1	32
3	16
5	16
1	27
1	16
1	20
2	22
1	16
3	14
3	14
3	7
2	7

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 4 to 12 December 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, 4 to 12 December 2021 (this event)	168 records

Every Record Set

20 of 168

Every record set or tied during Extreme rain in Australia, 4 to 12 December 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-12-06	Monto Township	Record daily precipitation	56.6 mm (2.2 in)	36.8 mm (1.4 in)	59	52 of 100 (Notable)
2021-12-09	Candelo Post Office	Record daily precipitation	124.0 mm (4.9 in)	87.9 mm (3.5 in)	51	65 of 100 (Major)
2021-12-09	Bobin (Bobin Creek)	Record daily precipitation	154.8 mm (6.1 in)	39.2 mm (1.5 in)	58	62 of 100 (Major)
2021-12-10	Nimmitabel Wastewater Treatmen	Record daily precipitation	70.0 mm (2.8 in)	50.2 mm (2.0 in)	111	80 of 100 (Exceptional)
2021-12-10	Bendalong Stp	Record daily precipitation	249.0 mm (9.8 in)	106.8 mm (4.2 in)	58	75 of 100 (Major)
2021-12-10	Batemans Bay - Buckenbowra	Record daily precipitation	200.0 mm (7.9 in)	70.0 mm (2.8 in)	61	75 of 100 (Major)
2021-12-10	Marlo	Record daily precipitation	40.1 mm (1.6 in)	27.4 mm (1.1 in)	111	66 of 100 (Major)
2021-12-10	Tumut (Wattle Cres)	Record daily precipitation	142.0 mm (5.6 in)	34.0 mm (1.3 in)	9	64 of 100 (Major)
2021-12-10	Bettowynd (Condry)	Record daily precipitation	82.0 mm (3.2 in)	43.1 mm (1.7 in)	51	63 of 100 (Major)
2021-12-10	Brogo (Hawks Head Road)	Record daily precipitation	190.0 mm (7.5 in)	65.5 mm (2.6 in)	51	61 of 100 (Major)
2021-12-10	Lower Boro (Calderwood)	Record daily precipitation	87.2 mm (3.4 in)	20.1 mm (0.8 in)	61	58 of 100 (Notable)
2021-12-10	Snowball	Record daily precipitation	87.0 mm (3.4 in)	68.4 mm (2.7 in)	19	55 of 100 (Notable)
2021-12-10	Majors Creek (the Old School)	Record daily precipitation	83.0 mm (3.3 in)	57.8 mm (2.3 in)	19	55 of 100 (Notable)
2021-12-10	Cooma (Myalla)	Record daily precipitation	87.6 mm (3.4 in)	22.8 mm (0.9 in)	51	55 of 100 (Notable)
2021-12-10	Berridale (Myack Street)	Record daily precipitation	58.2 mm (2.3 in)	44.0 mm (1.7 in)	32	54 of 100 (Notable)
2021-12-10	Wulgulmerang (Pleasant View)	Record daily precipitation	60.0 mm (2.4 in)	40.4 mm (1.6 in)	32	54 of 100 (Notable)
2021-12-10	Avoca Beach Bowling Club	Record daily precipitation	92.0 mm (3.6 in)	75.0 mm (3.0 in)	27	53 of 100 (Notable)
2021-12-10	Countegany (Gaerloch)	Record daily precipitation	116.5 mm (4.6 in)	42.1 mm (1.7 in)	51	53 of 100 (Notable)
2021-12-10	Bungonia (Inverary Park)	Record daily precipitation	62.0 mm (2.4 in)	15.5 mm (0.6 in)	131	53 of 100 (Notable)
2021-12-10	Cooma Airport AWS	Record daily precipitation	64.6 mm (2.5 in)	47.2 mm (1.9 in)	32	53 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 168 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.

Date	Records
2021-12-04	1
2021-12-05	2
2021-12-06	1
2021-12-07	4
2021-12-08	18
2021-12-09	42
2021-12-10	88
2021-12-11	11
2021-12-12	1

Margin (mm)	Years the old record stood
50	111
107	58
70	61
27	111
88	51
34	9
43	51
39	58
66	51
20	61
68	19
58	19
23	51
44	32
40	32
75	27
42	51
16	131
47	32
37	59
66	22
16	87
13	96
168	16
26	51
27	7
19	51
39	32
5	99
3	111
15	51
21	7
3	104
10	90
40	22
19	51
16	51
19	36
29	22
46	16
8	74
16	51
2	91
17	36
3	88
13	51
18	51
11	51
8	56
13	71
31	27
14	51
31	22
25	51
15	51
21	19
35	10
2	51
14	51
25	12
9	50
1	70
3	56
18	19
21	22
6	51
5	56
6	51
12	51
11	48
15	36
19	19
7	51
18	7
1	62
5	48
6	48
6	51
2	51
17	28
25	11
10	7
5	39
27	7
8	28
7	51
12	7
7	30
11	36
9	28
6	56
13	27
8	32
5	51
11	27
7	32
30	11
3	51
8	27
4	51
14	16
8	16
2	51
13	22
2	51
18	24
8	36
28	4
17	16
2	48
4	27
1	51
5	32
5	20
2	48
3	46
2	32
9	32
6	32
0	51
3	7
18	12
6	36
7	32
1	36
7	35
3	40
4	28
5	36
5	28
6	20
3	32
13	16
4	36
25	12
5	28
6	19
3	36
1	7
4	38
3	19
1	32
3	32
2	28
1	32
5	16
9	6
3	14
4	19
4	12
3	16
2	26
4	22
6	16
6	12
11	0
1	32
3	16
5	16
1	27
1	16
1	20
2	22
1	16
3	14
3	14
3	7
2	7

Margin (mm)	Years the old record stood
50	111
107	58
70	61
27	111
88	51
34	9
43	51
39	58
66	51
20	61
68	19
58	19
23	51
44	32
40	32
75	27
42	51
16	131
47	32
37	59
66	22
16	87
13	96
168	16
26	51
27	7
19	51
39	32
5	99
3	111
15	51
21	7
3	104
10	90
40	22
19	51
16	51
19	36
29	22
46	16
8	74
16	51
2	91
17	36
3	88
13	51
18	51
11	51
8	56
13	71
31	27
14	51
31	22
25	51
15	51
21	19
35	10
2	51
14	51
25	12
9	50
1	70
3	56
18	19
21	22
6	51
5	56
6	51
12	51
11	48
15	36
19	19
7	51
18	7
1	62
5	48
6	48
6	51
2	51
17	28
25	11
10	7
5	39
27	7
8	28
7	51
12	7
7	30
11	36
9	28
6	56
13	27
8	32
5	51
11	27
7	32
30	11
3	51
8	27
4	51
14	16
8	16
2	51
13	22
2	51
18	24
8	36
28	4
17	16
2	48
4	27
1	51
5	32
5	20
2	48
3	46
2	32
9	32
6	32
0	51
3	7
18	12
6	36
7	32
1	36
7	35
3	40
4	28
5	36
5	28
6	20
3	32
13	16
4	36
25	12
5	28
6	19
3	36
1	7
4	38
3	19
1	32
3	32
2	28
1	32
5	16
9	6
3	14
4	19
4	12
3	16
2	26
4	22
6	16
6	12
11	0
1	32
3	16
5	16
1	27
1	16
1	20
2	22
1	16
3	14
3	14
3	7
2	7

Margin (mm)	Years the old record stood
50	111
107	58
70	61
27	111
88	51
34	9
43	51
39	58
66	51
20	61
68	19
58	19
23	51
44	32
40	32
75	27
42	51
16	131
47	32
37	59
66	22
16	87
13	96
168	16
26	51
27	7
19	51
39	32
5	99
3	111
15	51
21	7
3	104
10	90
40	22
19	51
16	51
19	36
29	22
46	16
8	74
16	51
2	91
17	36
3	88
13	51
18	51
11	51
8	56
13	71
31	27
14	51
31	22
25	51
15	51
21	19
35	10
2	51
14	51
25	12
9	50
1	70
3	56
18	19
21	22
6	51
5	56
6	51
12	51
11	48
15	36
19	19
7	51
18	7
1	62
5	48
6	48
6	51
2	51
17	28
25	11
10	7
5	39
27	7
8	28
7	51
12	7
7	30
11	36
9	28
6	56
13	27
8	32
5	51
11	27
7	32
30	11
3	51
8	27
4	51
14	16
8	16
2	51
13	22
2	51
18	24
8	36
28	4
17	16
2	48
4	27
1	51
5	32
5	20
2	48
3	46
2	32
9	32
6	32
0	51
3	7
18	12
6	36
7	32
1	36
7	35
3	40
4	28
5	36
5	28
6	20
3	32
13	16
4	36
25	12
5	28
6	19
3	36
1	7
4	38
3	19
1	32
3	32
2	28
1	32
5	16
9	6
3	14
4	19
4	12
3	16
2	26
4	22
6	16
6	12
11	0
1	32
3	16
5	16
1	27
1	16
1	20
2	22
1	16
3	14
3	14
3	7
2	7