Extreme rain in Australia, 9 to 12 April 2020

Name: Extreme rain in Australia, 9 to 12 April 2020
Start: 2020-04-09
End: 2020-04-12
Location: Australia

Extreme rain in Australia, 9 to 12 April 2020: 134 records at 131 stations, peak on 10 April 2020. Closed.

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

Key Facts

Extreme rain in Australia, 9 to 12 April 2020 set or tied 134 station records at 131 stations.
It ran from 9 April 2020 to 12 April 2020 (4 days) and its peak day was 10 April 2020.
Status: closed.
Dunedoo Post Office set a daily record precipitation of 65.2 mm (2.6 in) on 10 April 2020.
The busiest day was 10 April 2020 with 66 records.
The oldest broken record in the ranked list had stood for 133 years.

Footprint

9 to 12 April 2020

The area covered by Extreme rain in Australia, 9 to 12 April 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 12 April 2020: stations that set records in the event
Station	Type	Value	Date
Dunedoo Post Office	Record daily precipitation	65.2 mm (2.6 in)	2020-04-10
Gilgandra (Wallumburrawang)	Record daily precipitation	72.2 mm (2.8 in)	2020-04-10
Coolah (Binnia St)	Record daily precipitation	50.6 mm (2.0 in)	2020-04-10
Conargo (Puckawidgee)	Record daily precipitation	36.0 mm (1.4 in)	2020-04-10
Nymagee (Balowra)	Record daily precipitation	33.0 mm (1.3 in)	2020-04-10
Garema (Forest Lodge)	Record daily precipitation	53.0 mm (2.1 in)	2020-04-10
Elong Elong (Bendeela St)	Record daily precipitation	50.0 mm (2.0 in)	2020-04-10
Coonabarabran (Namoi Street)	Record daily precipitation	50.4 mm (2.0 in)	2020-04-10
Leadville (Moreton Bay)	Record daily precipitation	62.6 mm (2.5 in)	2020-04-10
Marra Creek (Womboin)	Record daily precipitation	44.4 mm (1.7 in)	2020-04-10
Curban (Ercildoune)	Record daily precipitation	61.0 mm (2.4 in)	2020-04-10
Grenfell (Corowood)	Record daily precipitation	57.8 mm (2.3 in)	2020-04-10
Willow Tree (Yarrabah)	Record daily precipitation	29.0 mm (1.1 in)	2020-04-11
Gilgandra (Chelmsford Ave)	Record daily precipitation	53.4 mm (2.1 in)	2020-04-09
Mendooran Post Office	Record daily precipitation	64.0 mm (2.5 in)	2020-04-10
Grenfell (Quondong Rd)	Record daily precipitation	36.8 mm (1.4 in)	2020-04-10
Koorawatha (Boorowa Street)	Record daily precipitation	25.5 mm (1.0 in)	2020-04-10
Willow Tree (Valais)	Record daily precipitation	27.2 mm (1.1 in)	2020-04-11
Whitton (Conapaira St)	Record daily precipitation	24.0 mm (0.9 in)	2020-04-10
Wanganella General Store	Record daily precipitation	23.0 mm (0.9 in)	2020-04-10

Records per Day

Peak day 66

Records set or tied each day from 9 April 2020 to 12 April 2020. The most in one day was 66 on 10 April 2020.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 9 to 12 April 2020 ranked by margin
Gilgandra (Wallumburrawang), 04-10	57.0 mm (2.2 in)
Dunedoo Post Office, 04-10	50.5 mm (2.0 in)
Leadville (Moreton Bay), 04-10	46.6 mm (1.8 in)
Curban (Ercildoune), 04-10	46.4 mm (1.8 in)
Garema (Forest Lodge), 04-10	45.2 mm (1.8 in)
Grenfell (Corowood), 04-10	37.2 mm (1.5 in)
Coolah (Binnia St), 04-10	32.3 mm (1.3 in)
Elong Elong (Bendeela St), 04-10	31.7 mm (1.2 in)
Coonabarabran (Namoi Street), 04-10	24.7 mm (1.0 in)
Conargo (Puckawidgee), 04-10	23.8 mm (0.9 in)
Marra Creek (Womboin), 04-10	22.8 mm (0.9 in)
Gilgandra (Chelmsford Ave), 04-09	22.7 mm (0.9 in)
Nymagee (Balowra), 04-10	20.3 mm (0.8 in)
Willow Tree (Yarrabah), 04-11	14.8 mm (0.6 in)
Willow Tree (Valais), 04-11	13.2 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

134 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 12 April 2020
Margin (mm)	Years the old record stood
51	68
57	68
32	129
24	88
20	115
45	46
32	76
25	124
47	31
23	129
46	30
37	50
15	104
23	75
1	128
12	104
11	115
13	120
10	104
8	132
10	115
11	88
29	31
19	36
12	90
9	88
4	104
14	76
19	46
21	50
4	133
9	88
30	46
11	68
20	50
27	30
13	67
16	58
0	96
18	46
26	31
19	37
12	60
9	57
19	30
20	32
18	50
1	77
16	31
10	46
18	31
10	46
13	30
2	68
12	50
1	68
1	76
7	42
10	50
12	32
11	32
9	42
16	22
7	50
10	30
0	55
8	31
14	32
10	46
9	42
6	50
12	12
12	9
7	30
2	58
3	56
11	30
9	32
9	31
12	9
3	53
1	56
11	9
16	4
8	32
5	32
5	31
5	32
2	32
11	31
15	3
4	42
13	6
2	46
6	32
4	32
4	31
4	31
1	46
0	42
3	31
8	15
7	22
17	3
3	31
3	32
4	30
1	30
5	9
7	9
2	33
7	6
1	31
1	32
6	9
1	30
3	6
7	4
1	9
4	9
0	4
1	9
2	22
5	9
4	9
2	9
3	9
1	6
0	9
2	6
4	3
1	12
1	9
1	5

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 9 to 12 April 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 12 April 2020 (this event)	134 records

Every Record Set

20 of 134

Every record set or tied during Extreme rain in Australia, 9 to 12 April 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-04-09	Gilgandra (Chelmsford Ave)	Record daily precipitation	53.4 mm (2.1 in)	22.7 mm (0.9 in)	75	50 of 100 (Notable)
2020-04-10	Dunedoo Post Office	Record daily precipitation	65.2 mm (2.6 in)	50.5 mm (2.0 in)	68	70 of 100 (Major)
2020-04-10	Gilgandra (Wallumburrawang)	Record daily precipitation	72.2 mm (2.8 in)	57.0 mm (2.2 in)	68	70 of 100 (Major)
2020-04-10	Coolah (Binnia St)	Record daily precipitation	50.6 mm (2.0 in)	32.3 mm (1.3 in)	129	66 of 100 (Major)
2020-04-10	Conargo (Puckawidgee)	Record daily precipitation	36.0 mm (1.4 in)	23.8 mm (0.9 in)	88	64 of 100 (Major)
2020-04-10	Nymagee (Balowra)	Record daily precipitation	33.0 mm (1.3 in)	20.3 mm (0.8 in)	115	58 of 100 (Notable)
2020-04-10	Garema (Forest Lodge)	Record daily precipitation	53.0 mm (2.1 in)	45.2 mm (1.8 in)	46	58 of 100 (Notable)
2020-04-10	Elong Elong (Bendeela St)	Record daily precipitation	50.0 mm (2.0 in)	31.7 mm (1.2 in)	76	57 of 100 (Notable)
2020-04-10	Coonabarabran (Namoi Street)	Record daily precipitation	50.4 mm (2.0 in)	24.7 mm (1.0 in)	124	56 of 100 (Notable)
2020-04-10	Leadville (Moreton Bay)	Record daily precipitation	62.6 mm (2.5 in)	46.6 mm (1.8 in)	31	55 of 100 (Notable)
2020-04-10	Marra Creek (Womboin)	Record daily precipitation	44.4 mm (1.7 in)	22.8 mm (0.9 in)	129	53 of 100 (Notable)
2020-04-10	Curban (Ercildoune)	Record daily precipitation	61.0 mm (2.4 in)	46.4 mm (1.8 in)	30	53 of 100 (Notable)
2020-04-10	Grenfell (Corowood)	Record daily precipitation	57.8 mm (2.3 in)	37.2 mm (1.5 in)	50	53 of 100 (Notable)
2020-04-10	Mendooran Post Office	Record daily precipitation	64.0 mm (2.5 in)	0.8 mm (0.03 in)	128	50 of 100 (Notable)
2020-04-10	Grenfell (Quondong Rd)	Record daily precipitation	36.8 mm (1.4 in)	11.9 mm (0.5 in)	104	50 of 100 (Notable)
2020-04-10	Koorawatha (Boorowa Street)	Record daily precipitation	25.5 mm (1.0 in)	10.0 mm (0.4 in)	104	49 of 100 (Notable)
2020-04-10	Whitton (Conapaira St)	Record daily precipitation	24.0 mm (0.9 in)	10.8 mm (0.4 in)	115	20 of 100 (Routine)
2020-04-10	Wanganella General Store	Record daily precipitation	23.0 mm (0.9 in)	8.0 mm (0.31 in)	132	20 of 100 (Routine)
2020-04-11	Willow Tree (Yarrabah)	Record daily precipitation	29.0 mm (1.1 in)	14.8 mm (0.6 in)	104	51 of 100 (Notable)
2020-04-11	Willow Tree (Valais)	Record daily precipitation	27.2 mm (1.1 in)	13.2 mm (0.5 in)	120	49 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 134 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
51	68
57	68
32	129
24	88
20	115
45	46
32	76
25	124
47	31
23	129
46	30
37	50
15	104
23	75
1	128
12	104
11	115
13	120
10	104
8	132
10	115
11	88
29	31
19	36
12	90
9	88
4	104
14	76
19	46
21	50
4	133
9	88
30	46
11	68
20	50
27	30
13	67
16	58
0	96
18	46
26	31
19	37
12	60
9	57
19	30
20	32
18	50
1	77
16	31
10	46
18	31
10	46
13	30
2	68
12	50
1	68
1	76
7	42
10	50
12	32
11	32
9	42
16	22
7	50
10	30
0	55
8	31
14	32
10	46
9	42
6	50
12	12
12	9
7	30
2	58
3	56
11	30
9	32
9	31
12	9
3	53
1	56
11	9
16	4
8	32
5	32
5	31
5	32
2	32
11	31
15	3
4	42
13	6
2	46
6	32
4	32
4	31
4	31
1	46
0	42
3	31
8	15
7	22
17	3
3	31
3	32
4	30
1	30
5	9
7	9
2	33
7	6
1	31
1	32
6	9
1	30
3	6
7	4
1	9
4	9
0	4
1	9
2	22
5	9
4	9
2	9
3	9
1	6
0	9
2	6
4	3
1	12
1	9
1	5

Margin (mm)	Years the old record stood
51	68
57	68
32	129
24	88
20	115
45	46
32	76
25	124
47	31
23	129
46	30
37	50
15	104
23	75
1	128
12	104
11	115
13	120
10	104
8	132
10	115
11	88
29	31
19	36
12	90
9	88
4	104
14	76
19	46
21	50
4	133
9	88
30	46
11	68
20	50
27	30
13	67
16	58
0	96
18	46
26	31
19	37
12	60
9	57
19	30
20	32
18	50
1	77
16	31
10	46
18	31
10	46
13	30
2	68
12	50
1	68
1	76
7	42
10	50
12	32
11	32
9	42
16	22
7	50
10	30
0	55
8	31
14	32
10	46
9	42
6	50
12	12
12	9
7	30
2	58
3	56
11	30
9	32
9	31
12	9
3	53
1	56
11	9
16	4
8	32
5	32
5	31
5	32
2	32
11	31
15	3
4	42
13	6
2	46
6	32
4	32
4	31
4	31
1	46
0	42
3	31
8	15
7	22
17	3
3	31
3	32
4	30
1	30
5	9
7	9
2	33
7	6
1	31
1	32
6	9
1	30
3	6
7	4
1	9
4	9
0	4
1	9
2	22
5	9
4	9
2	9
3	9
1	6
0	9
2	6
4	3
1	12
1	9
1	5

Margin (mm)	Years the old record stood
51	68
57	68
32	129
24	88
20	115
45	46
32	76
25	124
47	31
23	129
46	30
37	50
15	104
23	75
1	128
12	104
11	115
13	120
10	104
8	132
10	115
11	88
29	31
19	36
12	90
9	88
4	104
14	76
19	46
21	50
4	133
9	88
30	46
11	68
20	50
27	30
13	67
16	58
0	96
18	46
26	31
19	37
12	60
9	57
19	30
20	32
18	50
1	77
16	31
10	46
18	31
10	46
13	30
2	68
12	50
1	68
1	76
7	42
10	50
12	32
11	32
9	42
16	22
7	50
10	30
0	55
8	31
14	32
10	46
9	42
6	50
12	12
12	9
7	30
2	58
3	56
11	30
9	32
9	31
12	9
3	53
1	56
11	9
16	4
8	32
5	32
5	31
5	32
2	32
11	31
15	3
4	42
13	6
2	46
6	32
4	32
4	31
4	31
1	46
0	42
3	31
8	15
7	22
17	3
3	31
3	32
4	30
1	30
5	9
7	9
2	33
7	6
1	31
1	32
6	9
1	30
3	6
7	4
1	9
4	9
0	4
1	9
2	22
5	9
4	9
2	9
3	9
1	6
0	9
2	6
4	3
1	12
1	9
1	5