Extreme rain in Australia, 3 to 9 September 2018

Name: Extreme rain in Australia, 3 to 9 September 2018
Start: 2018-09-03
End: 2018-09-09
Location: Australia

Extreme rain in Australia, 3 to 9 September 2018: 243 records at 238 stations, peak on 7 September 2018. Closed.

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

Key Facts

Extreme rain in Australia, 3 to 9 September 2018 set or tied 243 station records at 238 stations.
It ran from 3 September 2018 to 9 September 2018 (7 days) and its peak day was 7 September 2018.
Status: closed.
Woodburn Post Office set a daily record precipitation of 26.6 mm (1.0 in) on 4 September 2018.
The busiest day was 7 September 2018 with 129 records.
The oldest broken record in the ranked list had stood for 131 years.

Footprint

3 to 9 September 2018

The area covered by Extreme rain in Australia, 3 to 9 September 2018 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, 3 to 9 September 2018: stations that set records in the event
Station	Type	Value	Date
Woodburn Post Office	Record daily precipitation	26.6 mm (1.0 in)	2018-09-04
Tarcutta Post Office	Record daily precipitation	26.6 mm (1.0 in)	2018-09-07
Bankstown Airport AWS	Record daily precipitation	67.0 mm (2.6 in)	2018-09-08
Wantabadgery	Record daily precipitation	26.0 mm (1.0 in)	2018-09-07
Walwa	Record daily precipitation	29.0 mm (1.1 in)	2018-09-07
Katoomba (Murri St)	Record daily precipitation	27.0 mm (1.1 in)	2018-09-04
Delungra (Pearsby Hall)	Record daily precipitation	28.6 mm (1.1 in)	2018-09-08
Yamba Pilot Station	Record daily precipitation	30.4 mm (1.2 in)	2018-09-05
Ainslie Tyson St	Record daily precipitation	25.6 mm (1.0 in)	2018-09-07
Nymboida (Armidale Road)	Record daily precipitation	25.4 mm (1.0 in)	2018-09-08
Wollomombi (Wallamumbi)	Record daily precipitation	18.0 mm (0.7 in)	2018-09-04
Canberra Forestry	Record daily precipitation	24.6 mm (1.0 in)	2018-09-06
Hill End Post Office	Record daily precipitation	22.2 mm (0.9 in)	2018-09-07
Tombong (Hillcrest)	Record daily precipitation	10.4 mm (0.4 in)	2018-09-07
Connorville (Lake River)	Record daily precipitation	21.0 mm (0.8 in)	2018-09-07
Pioneer (Main Road)	Record daily precipitation	21.2 mm (0.8 in)	2018-09-07
Campbell Town (Greenhill)	Record daily precipitation	17.0 mm (0.7 in)	2018-09-07
Miena Dam	Record daily precipitation	23.6 mm (0.9 in)	2018-09-07
Mt Alford	Record daily precipitation	19.0 mm (0.7 in)	2018-09-08
Centennial Park	Record daily precipitation	24.0 mm (0.9 in)	2018-09-08

Records per Day

Peak day 129

Records set or tied each day from 3 September 2018 to 9 September 2018. The most in one day was 129 on 7 September 2018.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 3 to 9 September 2018 ranked by margin
Bankstown Airport AWS, 09-08	51.0 mm (2.0 in)
Ainslie Tyson St, 09-07	14.9 mm (0.6 in)
Woodburn Post Office, 09-04	14.7 mm (0.6 in)
Nymboida (Armidale Road), 09-08	13.7 mm (0.5 in)
Connorville (Lake River), 09-07	10.3 mm (0.4 in)
Delungra (Pearsby Hall), 09-08	9.5 mm (0.37 in)
Canberra Forestry, 09-06	9.4 mm (0.37 in)
Campbell Town (Greenhill), 09-07	9.4 mm (0.37 in)
Katoomba (Murri St), 09-04	8.5 mm (0.33 in)
Miena Dam, 09-07	7.6 mm (0.30 in)
Tarcutta Post Office, 09-07	7.3 mm (0.29 in)
Mt Alford, 09-08	7.1 mm (0.28 in)
Centennial Park, 09-08	6.7 mm (0.26 in)
Wantabadgery, 09-07	6.2 mm (0.24 in)
Walwa, 09-07	5.9 mm (0.23 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

243 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, 3 to 9 September 2018
Margin (mm)	Years the old record stood
8	103
15	95
7	97
51	11
7	101
6	97
6	131
9	123
10	81
7	108
3	104
5	95
6	97
9	69
4	101
15	53
9	76
10	69
5	95
14	56
3	108
10	76
37	12
17	60
3	95
12	53
6	84
11	75
1	112
1	126
0	127
1	97
1	97
0	97
2	95
1	97
0	97
6	69
32	35
5	75
9	53
8	64
10	52
19	48
2	81
0	84
5	69
10	53
12	53
15	59
7	52
0	75
5	53
11	53
24	9
7	71
13	36
8	40
11	40
17	39
4	53
15	39
3	53
12	25
2	60
6	52
4	52
22	33
11	40
11	40
2	64
11	39
16	8
11	41
10	40
19	12
15	39
11	39
9	40
9	36
14	29
4	47
17	8
4	52
16	11
8	44
17	12
1	53
1	53
1	53
2	53
13	16
5	53
8	35
7	35
10	48
1	52
8	29
4	40
6	39
10	39
11	35
3	40
12	29
9	31
5	53
10	12
9	35
1	56
11	43
10	39
10	32
2	45
3	35
8	40
12	28
16	12
2	53
4	40
2	52
7	35
0	40
2	35
1	40
1	40
18	8
2	53
8	25
1	53
1	52
0	52
1	52
4	35
2	35
21	9
13	12
16	8
2	48
6	16
5	28
1	47
2	40
5	36
5	35
11	8
17	8
6	29
4	40
0	40
3	40
13	8
24	7
7	12
0	44
1	48
15	8
1	43
1	40
6	12
5	36
9	8
2	39
11	5
3	36
11	9
1	40
0	40
7	16
4	35
4	35
9	9
1	45
0	45
1	39
2	35
8	12
9	12
7	11
2	40
8	5
4	35
7	16
6	16
3	35
12	12
4	35
8	19
14	8
10	7
4	12
5	5
6	8
4	9
4	9
8	13
8	7
6	12
2	12
8	5
2	8

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 3 to 9 September 2018 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, 3 to 9 September 2018 (this event)	243 records

Every Record Set

20 of 243

Every record set or tied during Extreme rain in Australia, 3 to 9 September 2018, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2018-09-04	Woodburn Post Office	Record daily precipitation	26.6 mm (1.0 in)	14.7 mm (0.6 in)	95	49 of 100 (Notable)
2018-09-04	Katoomba (Murri St)	Record daily precipitation	27.0 mm (1.1 in)	8.5 mm (0.33 in)	123	46 of 100 (Notable)
2018-09-04	Wollomombi (Wallamumbi)	Record daily precipitation	18.0 mm (0.7 in)	5.3 mm (0.21 in)	95	20 of 100 (Routine)
2018-09-05	Yamba Pilot Station	Record daily precipitation	30.4 mm (1.2 in)	4.0 mm (0.16 in)	101	43 of 100 (Notable)
2018-09-06	Canberra Forestry	Record daily precipitation	24.6 mm (1.0 in)	9.4 mm (0.37 in)	76	20 of 100 (Routine)
2018-09-07	Tarcutta Post Office	Record daily precipitation	26.6 mm (1.0 in)	7.3 mm (0.29 in)	97	49 of 100 (Notable)
2018-09-07	Wantabadgery	Record daily precipitation	26.0 mm (1.0 in)	6.2 mm (0.24 in)	97	47 of 100 (Notable)
2018-09-07	Walwa	Record daily precipitation	29.0 mm (1.1 in)	5.9 mm (0.23 in)	131	47 of 100 (Notable)
2018-09-07	Ainslie Tyson St	Record daily precipitation	25.6 mm (1.0 in)	14.9 mm (0.6 in)	53	43 of 100 (Notable)
2018-09-07	Hill End Post Office	Record daily precipitation	22.2 mm (0.9 in)	5.7 mm (0.22 in)	97	20 of 100 (Routine)
2018-09-07	Tombong (Hillcrest)	Record daily precipitation	10.4 mm (0.4 in)	2.8 mm (0.11 in)	104	20 of 100 (Routine)
2018-09-07	Connorville (Lake River)	Record daily precipitation	21.0 mm (0.8 in)	10.3 mm (0.4 in)	69	20 of 100 (Routine)
2018-09-07	Pioneer (Main Road)	Record daily precipitation	21.2 mm (0.8 in)	4.7 mm (0.19 in)	95	20 of 100 (Routine)
2018-09-07	Campbell Town (Greenhill)	Record daily precipitation	17.0 mm (0.7 in)	9.4 mm (0.37 in)	69	20 of 100 (Routine)
2018-09-07	Miena Dam	Record daily precipitation	23.6 mm (0.9 in)	7.6 mm (0.30 in)	103	20 of 100 (Routine)
2018-09-08	Bankstown Airport AWS	Record daily precipitation	67.0 mm (2.6 in)	51.0 mm (2.0 in)	11	48 of 100 (Notable)
2018-09-08	Delungra (Pearsby Hall)	Record daily precipitation	28.6 mm (1.1 in)	9.5 mm (0.37 in)	81	45 of 100 (Notable)
2018-09-08	Nymboida (Armidale Road)	Record daily precipitation	25.4 mm (1.0 in)	13.7 mm (0.5 in)	56	42 of 100 (Notable)
2018-09-08	Mt Alford	Record daily precipitation	19.0 mm (0.7 in)	7.1 mm (0.28 in)	101	20 of 100 (Routine)
2018-09-08	Centennial Park	Record daily precipitation	24.0 mm (0.9 in)	6.7 mm (0.26 in)	108	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 243 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
2018-09-03	4
2018-09-04	45
2018-09-05	3
2018-09-06	9
2018-09-07	129
2018-09-08	51
2018-09-09	2

Margin (mm)	Years the old record stood
8	103
15	95
7	97
51	11
7	101
6	97
6	131
9	123
10	81
7	108
3	104
5	95
6	97
9	69
4	101
15	53
9	76
10	69
5	95
14	56
3	108
10	76
37	12
17	60
3	95
12	53
6	84
11	75
1	112
1	126
0	127
1	97
1	97
0	97
2	95
1	97
0	97
6	69
32	35
5	75
9	53
8	64
10	52
19	48
2	81
0	84
5	69
10	53
12	53
15	59
7	52
0	75
5	53
11	53
24	9
7	71
13	36
8	40
11	40
17	39
4	53
15	39
3	53
12	25
2	60
6	52
4	52
22	33
11	40
11	40
2	64
11	39
16	8
11	41
10	40
19	12
15	39
11	39
9	40
9	36
14	29
4	47
17	8
4	52
16	11
8	44
17	12
1	53
1	53
1	53
2	53
13	16
5	53
8	35
7	35
10	48
1	52
8	29
4	40
6	39
10	39
11	35
3	40
12	29
9	31
5	53
10	12
9	35
1	56
11	43
10	39
10	32
2	45
3	35
8	40
12	28
16	12
2	53
4	40
2	52
7	35
0	40
2	35
1	40
1	40
18	8
2	53
8	25
1	53
1	52
0	52
1	52
4	35
2	35
21	9
13	12
16	8
2	48
6	16
5	28
1	47
2	40
5	36
5	35
11	8
17	8
6	29
4	40
0	40
3	40
13	8
24	7
7	12
0	44
1	48
15	8
1	43
1	40
6	12
5	36
9	8
2	39
11	5
3	36
11	9
1	40
0	40
7	16
4	35
4	35
9	9
1	45
0	45
1	39
2	35
8	12
9	12
7	11
2	40
8	5
4	35
7	16
6	16
3	35
12	12
4	35
8	19
14	8
10	7
4	12
5	5
6	8
4	9
4	9
8	13
8	7
6	12
2	12
8	5
2	8

Margin (mm)	Years the old record stood
8	103
15	95
7	97
51	11
7	101
6	97
6	131
9	123
10	81
7	108
3	104
5	95
6	97
9	69
4	101
15	53
9	76
10	69
5	95
14	56
3	108
10	76
37	12
17	60
3	95
12	53
6	84
11	75
1	112
1	126
0	127
1	97
1	97
0	97
2	95
1	97
0	97
6	69
32	35
5	75
9	53
8	64
10	52
19	48
2	81
0	84
5	69
10	53
12	53
15	59
7	52
0	75
5	53
11	53
24	9
7	71
13	36
8	40
11	40
17	39
4	53
15	39
3	53
12	25
2	60
6	52
4	52
22	33
11	40
11	40
2	64
11	39
16	8
11	41
10	40
19	12
15	39
11	39
9	40
9	36
14	29
4	47
17	8
4	52
16	11
8	44
17	12
1	53
1	53
1	53
2	53
13	16
5	53
8	35
7	35
10	48
1	52
8	29
4	40
6	39
10	39
11	35
3	40
12	29
9	31
5	53
10	12
9	35
1	56
11	43
10	39
10	32
2	45
3	35
8	40
12	28
16	12
2	53
4	40
2	52
7	35
0	40
2	35
1	40
1	40
18	8
2	53
8	25
1	53
1	52
0	52
1	52
4	35
2	35
21	9
13	12
16	8
2	48
6	16
5	28
1	47
2	40
5	36
5	35
11	8
17	8
6	29
4	40
0	40
3	40
13	8
24	7
7	12
0	44
1	48
15	8
1	43
1	40
6	12
5	36
9	8
2	39
11	5
3	36
11	9
1	40
0	40
7	16
4	35
4	35
9	9
1	45
0	45
1	39
2	35
8	12
9	12
7	11
2	40
8	5
4	35
7	16
6	16
3	35
12	12
4	35
8	19
14	8
10	7
4	12
5	5
6	8
4	9
4	9
8	13
8	7
6	12
2	12
8	5
2	8

Margin (mm)	Years the old record stood
8	103
15	95
7	97
51	11
7	101
6	97
6	131
9	123
10	81
7	108
3	104
5	95
6	97
9	69
4	101
15	53
9	76
10	69
5	95
14	56
3	108
10	76
37	12
17	60
3	95
12	53
6	84
11	75
1	112
1	126
0	127
1	97
1	97
0	97
2	95
1	97
0	97
6	69
32	35
5	75
9	53
8	64
10	52
19	48
2	81
0	84
5	69
10	53
12	53
15	59
7	52
0	75
5	53
11	53
24	9
7	71
13	36
8	40
11	40
17	39
4	53
15	39
3	53
12	25
2	60
6	52
4	52
22	33
11	40
11	40
2	64
11	39
16	8
11	41
10	40
19	12
15	39
11	39
9	40
9	36
14	29
4	47
17	8
4	52
16	11
8	44
17	12
1	53
1	53
1	53
2	53
13	16
5	53
8	35
7	35
10	48
1	52
8	29
4	40
6	39
10	39
11	35
3	40
12	29
9	31
5	53
10	12
9	35
1	56
11	43
10	39
10	32
2	45
3	35
8	40
12	28
16	12
2	53
4	40
2	52
7	35
0	40
2	35
1	40
1	40
18	8
2	53
8	25
1	53
1	52
0	52
1	52
4	35
2	35
21	9
13	12
16	8
2	48
6	16
5	28
1	47
2	40
5	36
5	35
11	8
17	8
6	29
4	40
0	40
3	40
13	8
24	7
7	12
0	44
1	48
15	8
1	43
1	40
6	12
5	36
9	8
2	39
11	5
3	36
11	9
1	40
0	40
7	16
4	35
4	35
9	9
1	45
0	45
1	39
2	35
8	12
9	12
7	11
2	40
8	5
4	35
7	16
6	16
3	35
12	12
4	35
8	19
14	8
10	7
4	12
5	5
6	8
4	9
4	9
8	13
8	7
6	12
2	12
8	5
2	8