Extreme rain in Australia, 9 to 11 November 2020

Name: Extreme rain in Australia, 9 to 11 November 2020
Start: 2020-11-09
End: 2020-11-11
Location: Australia

Extreme rain in Australia, 9 to 11 November 2020: 123 records at 121 stations, peak on 10 November 2020. Closed.

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

Key Facts

Extreme rain in Australia, 9 to 11 November 2020 set or tied 123 station records at 121 stations.
It ran from 9 November 2020 to 11 November 2020 (3 days) and its peak day was 10 November 2020.
Status: closed.
Denmark set a daily record precipitation of 42.0 mm (1.7 in) on 10 November 2020.
The busiest day was 10 November 2020 with 107 records.
The oldest broken record in the ranked list had stood for 112 years.

Footprint

9 to 11 November 2020

The area covered by Extreme rain in Australia, 9 to 11 November 2020 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, 9 to 11 November 2020: stations that set records in the event
Station	Type	Value	Date
Denmark	Record daily precipitation	42.0 mm (1.7 in)	2020-11-10
Chidlow	Record daily precipitation	36.6 mm (1.4 in)	2020-11-10
Pardelup	Record daily precipitation	30.0 mm (1.2 in)	2020-11-10
Denbarker	Record daily precipitation	38.4 mm (1.5 in)	2020-11-10
Glengarren	Record daily precipitation	41.4 mm (1.6 in)	2020-11-10
Mundaring	Record daily precipitation	63.4 mm (2.5 in)	2020-11-10
Bickley	Record daily precipitation	59.2 mm (2.3 in)	2020-11-10
Lower Chittering	Record daily precipitation	30.0 mm (1.2 in)	2020-11-10
Wilgarrup	Record daily precipitation	31.0 mm (1.2 in)	2020-11-10
Jarrahdale	Record daily precipitation	38.4 mm (1.5 in)	2020-11-10
Denmark Agric. School	Record daily precipitation	36.5 mm (1.4 in)	2020-11-10
Araluen	Record daily precipitation	40.4 mm (1.6 in)	2020-11-09
Serpentine	Record daily precipitation	32.2 mm (1.3 in)	2020-11-10
Vermeulen	Record daily precipitation	37.4 mm (1.5 in)	2020-11-10
Albany	Record daily precipitation	30.0 mm (1.2 in)	2020-11-10
Goomalling	Record daily precipitation	20.0 mm (0.8 in)	2020-11-09
Lake Nammen	Record daily precipitation	19.4 mm (0.8 in)	2020-11-10
Innadong	Record daily precipitation	17.4 mm (0.7 in)	2020-11-10
Northam	Record daily precipitation	17.2 mm (0.7 in)	2020-11-10
The Warriups	Record daily precipitation	23.0 mm (0.9 in)	2020-11-10

Records per Day

Peak day 107

Records set or tied each day from 9 November 2020 to 11 November 2020. The most in one day was 107 on 10 November 2020.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 9 to 11 November 2020 ranked by margin
Bickley, 11-10	39.2 mm (1.5 in)
Denmark Agric. School, 11-10	25.9 mm (1.0 in)
Denbarker, 11-10	25.4 mm (1.0 in)
Glengarren, 11-10	25.2 mm (1.0 in)
Denmark, 11-10	21.9 mm (0.9 in)
Chidlow, 11-10	21.9 mm (0.9 in)
Vermeulen, 11-10	18.8 mm (0.7 in)
Pardelup, 11-10	17.8 mm (0.7 in)
Jarrahdale, 11-10	17.6 mm (0.7 in)
Wilgarrup, 11-10	15.0 mm (0.6 in)
Araluen, 11-09	15.0 mm (0.6 in)
Lake Nammen, 11-10	13.8 mm (0.5 in)
Serpentine, 11-10	12.4 mm (0.5 in)
Northam, 11-10	12.1 mm (0.5 in)
Lower Chittering, 11-10	12.0 mm (0.5 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

123 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, 9 to 11 November 2020
Margin (mm)	Years the old record stood
22	96
22	96
10	104
12	74
18	49
25	41
25	44
6	71
39	16
12	66
5	96
5	112
15	41
18	44
26	10
15	58
12	44
14	44
19	41
12	49
24	16
3	96
12	44
5	51
21	16
17	9
11	44
4	81
9	44
5	74
6	70
15	44
10	44
4	81
15	10
11	41
2	81
2	81
17	27
1	88
9	49
16	41
2	81
10	44
9	41
14	27
10	44
0	87
14	44
13	10
6	41
10	41
9	32
17	10
5	36
11	10
5	35
6	49
6	41
6	41
11	10
3	58
12	3
4	49
9	10
3	49
6	41
6	41
11	10
13	10
4	49
3	44
8	16
10	16
9	41
3	49
6	44
7	44
5	44
1	36
2	36
9	10
1	44
4	36
8	41
7	41
2	36
0	58
5	27
9	27
8	16
6	44
1	49
0	49
5	41
0	49
6	10
1	49
3	41
7	27
2	49
8	10
6	27
2	41
5	36
3	16
6	16
5	10
1	41
1	44
0	44
6	9
5	16
2	10
4	10
6	16
1	10
6	16
3	8
3	16
2	16
0	16
0	16

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 9 to 11 November 2020 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, 9 to 11 November 2020 (this event)	123 records

Every Record Set

20 of 123

Every record set or tied during Extreme rain in Australia, 9 to 11 November 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-11-09	Araluen	Record daily precipitation	40.4 mm (1.6 in)	15.0 mm (0.6 in)	58	44 of 100 (Notable)
2020-11-09	Goomalling	Record daily precipitation	20.0 mm (0.8 in)	10.3 mm (0.4 in)	104	20 of 100 (Routine)
2020-11-10	Denmark	Record daily precipitation	42.0 mm (1.7 in)	21.9 mm (0.9 in)	96	76 of 100 (Major)
2020-11-10	Chidlow	Record daily precipitation	36.6 mm (1.4 in)	21.9 mm (0.9 in)	96	70 of 100 (Major)
2020-11-10	Pardelup	Record daily precipitation	30.0 mm (1.2 in)	17.8 mm (0.7 in)	49	57 of 100 (Notable)
2020-11-10	Denbarker	Record daily precipitation	38.4 mm (1.5 in)	25.4 mm (1.0 in)	41	55 of 100 (Notable)
2020-11-10	Glengarren	Record daily precipitation	41.4 mm (1.6 in)	25.2 mm (1.0 in)	44	52 of 100 (Notable)
2020-11-10	Mundaring	Record daily precipitation	63.4 mm (2.5 in)	6.2 mm (0.24 in)	71	49 of 100 (Notable)
2020-11-10	Bickley	Record daily precipitation	59.2 mm (2.3 in)	39.2 mm (1.5 in)	16	49 of 100 (Notable)
2020-11-10	Lower Chittering	Record daily precipitation	30.0 mm (1.2 in)	12.0 mm (0.5 in)	66	48 of 100 (Notable)
2020-11-10	Wilgarrup	Record daily precipitation	31.0 mm (1.2 in)	15.0 mm (0.6 in)	41	46 of 100 (Notable)
2020-11-10	Jarrahdale	Record daily precipitation	38.4 mm (1.5 in)	17.6 mm (0.7 in)	44	45 of 100 (Notable)
2020-11-10	Denmark Agric. School	Record daily precipitation	36.5 mm (1.4 in)	25.9 mm (1.0 in)	10	45 of 100 (Notable)
2020-11-10	Serpentine	Record daily precipitation	32.2 mm (1.3 in)	12.4 mm (0.5 in)	44	44 of 100 (Notable)
2020-11-10	Vermeulen	Record daily precipitation	37.4 mm (1.5 in)	18.8 mm (0.7 in)	41	43 of 100 (Notable)
2020-11-10	Albany	Record daily precipitation	30.0 mm (1.2 in)	12.0 mm (0.5 in)	49	42 of 100 (Notable)
2020-11-10	Lake Nammen	Record daily precipitation	19.4 mm (0.8 in)	13.8 mm (0.5 in)	44	20 of 100 (Routine)
2020-11-10	Innadong	Record daily precipitation	17.4 mm (0.7 in)	4.7 mm (0.19 in)	96	20 of 100 (Routine)
2020-11-10	Northam	Record daily precipitation	17.2 mm (0.7 in)	12.1 mm (0.5 in)	74	20 of 100 (Routine)
2020-11-10	The Warriups	Record daily precipitation	23.0 mm (0.9 in)	5.0 mm (0.20 in)	112	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 123 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
22	96
22	96
10	104
12	74
18	49
25	41
25	44
6	71
39	16
12	66
5	96
5	112
15	41
18	44
26	10
15	58
12	44
14	44
19	41
12	49
24	16
3	96
12	44
5	51
21	16
17	9
11	44
4	81
9	44
5	74
6	70
15	44
10	44
4	81
15	10
11	41
2	81
2	81
17	27
1	88
9	49
16	41
2	81
10	44
9	41
14	27
10	44
0	87
14	44
13	10
6	41
10	41
9	32
17	10
5	36
11	10
5	35
6	49
6	41
6	41
11	10
3	58
12	3
4	49
9	10
3	49
6	41
6	41
11	10
13	10
4	49
3	44
8	16
10	16
9	41
3	49
6	44
7	44
5	44
1	36
2	36
9	10
1	44
4	36
8	41
7	41
2	36
0	58
5	27
9	27
8	16
6	44
1	49
0	49
5	41
0	49
6	10
1	49
3	41
7	27
2	49
8	10
6	27
2	41
5	36
3	16
6	16
5	10
1	41
1	44
0	44
6	9
5	16
2	10
4	10
6	16
1	10
6	16
3	8
3	16
2	16
0	16
0	16

Margin (mm)	Years the old record stood
22	96
22	96
10	104
12	74
18	49
25	41
25	44
6	71
39	16
12	66
5	96
5	112
15	41
18	44
26	10
15	58
12	44
14	44
19	41
12	49
24	16
3	96
12	44
5	51
21	16
17	9
11	44
4	81
9	44
5	74
6	70
15	44
10	44
4	81
15	10
11	41
2	81
2	81
17	27
1	88
9	49
16	41
2	81
10	44
9	41
14	27
10	44
0	87
14	44
13	10
6	41
10	41
9	32
17	10
5	36
11	10
5	35
6	49
6	41
6	41
11	10
3	58
12	3
4	49
9	10
3	49
6	41
6	41
11	10
13	10
4	49
3	44
8	16
10	16
9	41
3	49
6	44
7	44
5	44
1	36
2	36
9	10
1	44
4	36
8	41
7	41
2	36
0	58
5	27
9	27
8	16
6	44
1	49
0	49
5	41
0	49
6	10
1	49
3	41
7	27
2	49
8	10
6	27
2	41
5	36
3	16
6	16
5	10
1	41
1	44
0	44
6	9
5	16
2	10
4	10
6	16
1	10
6	16
3	8
3	16
2	16
0	16
0	16

Margin (mm)	Years the old record stood
22	96
22	96
10	104
12	74
18	49
25	41
25	44
6	71
39	16
12	66
5	96
5	112
15	41
18	44
26	10
15	58
12	44
14	44
19	41
12	49
24	16
3	96
12	44
5	51
21	16
17	9
11	44
4	81
9	44
5	74
6	70
15	44
10	44
4	81
15	10
11	41
2	81
2	81
17	27
1	88
9	49
16	41
2	81
10	44
9	41
14	27
10	44
0	87
14	44
13	10
6	41
10	41
9	32
17	10
5	36
11	10
5	35
6	49
6	41
6	41
11	10
3	58
12	3
4	49
9	10
3	49
6	41
6	41
11	10
13	10
4	49
3	44
8	16
10	16
9	41
3	49
6	44
7	44
5	44
1	36
2	36
9	10
1	44
4	36
8	41
7	41
2	36
0	58
5	27
9	27
8	16
6	44
1	49
0	49
5	41
0	49
6	10
1	49
3	41
7	27
2	49
8	10
6	27
2	41
5	36
3	16
6	16
5	10
1	41
1	44
0	44
6	9
5	16
2	10
4	10
6	16
1	10
6	16
3	8
3	16
2	16
0	16
0	16