Extreme rain in Australia, 17 to 20 December 2017

Name: Extreme rain in Australia, 17 to 20 December 2017
Start: 2017-12-17
End: 2017-12-20
Location: Australia

Extreme rain in Australia, 17 to 20 December 2017: 168 records at 120 stations, peak on 18 December 2017. Closed.

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

Key Facts

Extreme rain in Australia, 17 to 20 December 2017 set or tied 168 station records at 120 stations.
It ran from 17 December 2017 to 20 December 2017 (4 days) and its peak day was 18 December 2017.
Status: closed.
Rosa Brook set a daily record precipitation of 37.0 mm (1.5 in) on 18 December 2017.
The busiest day was 18 December 2017 with 95 records.
The oldest broken record in the ranked list had stood for 106 years.

Footprint

17 to 20 December 2017

The area covered by Extreme rain in Australia, 17 to 20 December 2017 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, 17 to 20 December 2017: stations that set records in the event
Station	Type	Value	Date
Rosa Brook	Record daily precipitation	37.0 mm (1.5 in)	2017-12-18
Forest Grove	Record daily precipitation	30.4 mm (1.2 in)	2017-12-18
Serpentine	Record daily precipitation	28.6 mm (1.1 in)	2017-12-18
Dwellingup	Record daily precipitation	35.6 mm (1.4 in)	2017-12-18
Northcliffe	Record daily precipitation	38.4 mm (1.5 in)	2017-12-18
Jarrahdale	Record daily precipitation	35.6 mm (1.4 in)	2017-12-18
Pemberton	Record daily precipitation	41.1 mm (1.6 in)	2017-12-18
Alexandra Bridge	Record daily precipitation	31.8 mm (1.3 in)	2017-12-18
Walters Farm	Record daily precipitation	37.6 mm (1.5 in)	2017-12-18
Mount Helena	Record daily precipitation	29.0 mm (1.1 in)	2017-12-18
Maida Vale	Record daily precipitation	21.6 mm (0.9 in)	2017-12-18
Cape Leeuwin	Record daily precipitation	20.6 mm (0.8 in)	2017-12-18
Warner Glen	Record daily precipitation	20.0 mm (0.8 in)	2017-12-18
Redmond	Record daily precipitation	22.0 mm (0.9 in)	2017-12-18
Kirup	Record daily precipitation	19.7 mm (0.8 in)	2017-12-18
Aston Downs	Record daily precipitation	23.0 mm (0.9 in)	2017-12-18
The Wold - Lowden	Record daily precipitation	22.4 mm (0.9 in)	2017-12-18
Kalgan River	Record daily precipitation	22.0 mm (0.9 in)	2017-12-19
Albany Airport	Record daily precipitation	21.8 mm (0.9 in)	2017-12-19
Dalyup Park	Record daily precipitation	15.4 mm (0.6 in)	2017-12-19

Records per Day

Peak day 95

Records set or tied each day from 17 December 2017 to 20 December 2017. The most in one day was 95 on 18 December 2017.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Australia, 17 to 20 December 2017 ranked by margin
Walters Farm, 12-18	32.4 mm (1.3 in)
Alexandra Bridge, 12-18	27.8 mm (1.1 in)
Northcliffe, 12-18	24.0 mm (0.9 in)
Pemberton, 12-18	23.9 mm (0.9 in)
Mount Helena, 12-18	23.8 mm (0.9 in)
Rosa Brook, 12-18	22.3 mm (0.9 in)
Aston Downs, 12-18	20.0 mm (0.8 in)
Dwellingup, 12-18	19.9 mm (0.8 in)
Forest Grove, 12-18	19.0 mm (0.7 in)
Serpentine, 12-18	18.4 mm (0.7 in)
The Wold - Lowden, 12-18	18.2 mm (0.7 in)
Maida Vale, 12-18	17.4 mm (0.7 in)
Redmond, 12-18	17.4 mm (0.7 in)
Cape Leeuwin, 12-18	14.8 mm (0.6 in)
Albany Airport, 12-19	14.7 mm (0.6 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, 17 to 20 December 2017
Margin (mm)	Years the old record stood
22	86
19	86
18	80
20	80
14	86
15	64
24	32
14	80
17	32
9	100
24	14
17	52
15	52
28	10
32	10
24	10
6	86
18	14
13	52
20	32
2	106
10	86
22	10
6	76
13	52
1	100
7	64
1	100
16	14
9	52
1	100
15	52
3	88
11	52
17	32
14	10
5	80
4	76
4	76
0	92
1	80
3	76
4	64
1	86
4	64
1	80
4	52
1	76
3	64
3	72
3	64
11	30
16	10
16	32
26	14
13	10
10	39
11	16
13	14
13	10
17	10
17	10
6	42
1	56
12	14
7	32
14	10
3	52
3	52
1	64
1	64
1	33
0	64
14	10
5	46
11	10
7	11
4	28
8	10
11	10
3	52
3	52
3	48
3	39
9	10
7	11
6	10
9	16
3	39
10	10
10	4
6	16
6	14
1	48
7	10
4	28
2	40
6	10
9	10
2	44
7	10
1	48
3	40
6	10
6	14
6	10
8	16
10	14
2	39
0	39
4	14
1	39
12	10
3	10
5	16
6	10
6	4
6	16
5	14
2	14
4	16
4	16
5	20
2	30
4	10
1	14
4	10
3	10
3	10
2	16
2	10
1	32
5	16
1	24
1	28
3	10
3	16
3	16
3	14
0	28
3	10
1	14
0	22
2	16
4	10
4	10
5	10
2	10
2	10
1	10
2	10
2	10
0	14
1	14
3	16
2	16
2	10
1	16
3	10
1	10
1	14
0	16
0	16
0	16
2	11
1	12
1	4
0	3

Compared With Other Events

Station records per event

Station records in Extreme rain in Australia, 17 to 20 December 2017 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, 17 to 20 December 2017 (this event)	168 records

Every Record Set

20 of 168

Every record set or tied during Extreme rain in Australia, 17 to 20 December 2017, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2017-12-18	Rosa Brook	Record daily precipitation	37.0 mm (1.5 in)	22.3 mm (0.9 in)	86	74 of 100 (Major)
2017-12-18	Forest Grove	Record daily precipitation	30.4 mm (1.2 in)	19.0 mm (0.7 in)	86	66 of 100 (Major)
2017-12-18	Serpentine	Record daily precipitation	28.6 mm (1.1 in)	18.4 mm (0.7 in)	80	61 of 100 (Major)
2017-12-18	Dwellingup	Record daily precipitation	35.6 mm (1.4 in)	19.9 mm (0.8 in)	80	59 of 100 (Notable)
2017-12-18	Northcliffe	Record daily precipitation	38.4 mm (1.5 in)	24.0 mm (0.9 in)	32	56 of 100 (Notable)
2017-12-18	Jarrahdale	Record daily precipitation	35.6 mm (1.4 in)	14.0 mm (0.6 in)	80	53 of 100 (Notable)
2017-12-18	Pemberton	Record daily precipitation	41.1 mm (1.6 in)	23.9 mm (0.9 in)	14	50 of 100 (Notable)
2017-12-18	Alexandra Bridge	Record daily precipitation	31.8 mm (1.3 in)	27.8 mm (1.1 in)	10	47 of 100 (Notable)
2017-12-18	Walters Farm	Record daily precipitation	37.6 mm (1.5 in)	32.4 mm (1.3 in)	10	47 of 100 (Notable)
2017-12-18	Mount Helena	Record daily precipitation	29.0 mm (1.1 in)	23.8 mm (0.9 in)	10	46 of 100 (Notable)
2017-12-18	Maida Vale	Record daily precipitation	21.6 mm (0.9 in)	17.4 mm (0.7 in)	32	20 of 100 (Routine)
2017-12-18	Cape Leeuwin	Record daily precipitation	20.6 mm (0.8 in)	14.8 mm (0.6 in)	64	20 of 100 (Routine)
2017-12-18	Warner Glen	Record daily precipitation	20.0 mm (0.8 in)	13.4 mm (0.5 in)	52	20 of 100 (Routine)
2017-12-18	Redmond	Record daily precipitation	22.0 mm (0.9 in)	17.4 mm (0.7 in)	52	20 of 100 (Routine)
2017-12-18	Kirup	Record daily precipitation	19.7 mm (0.8 in)	13.9 mm (0.5 in)	86	20 of 100 (Routine)
2017-12-18	Aston Downs	Record daily precipitation	23.0 mm (0.9 in)	20.0 mm (0.8 in)	32	20 of 100 (Routine)
2017-12-18	The Wold - Lowden	Record daily precipitation	22.4 mm (0.9 in)	18.2 mm (0.7 in)	14	20 of 100 (Routine)
2017-12-19	Kalgan River	Record daily precipitation	22.0 mm (0.9 in)	6.3 mm (0.25 in)	86	20 of 100 (Routine)
2017-12-19	Albany Airport	Record daily precipitation	21.8 mm (0.9 in)	14.7 mm (0.6 in)	52	20 of 100 (Routine)
2017-12-19	Dalyup Park	Record daily precipitation	15.4 mm (0.6 in)	9.0 mm (0.35 in)	100	20 of 100 (Routine)

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

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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.

Margin (mm)	Years the old record stood
22	86
19	86
18	80
20	80
14	86
15	64
24	32
14	80
17	32
9	100
24	14
17	52
15	52
28	10
32	10
24	10
6	86
18	14
13	52
20	32
2	106
10	86
22	10
6	76
13	52
1	100
7	64
1	100
16	14
9	52
1	100
15	52
3	88
11	52
17	32
14	10
5	80
4	76
4	76
0	92
1	80
3	76
4	64
1	86
4	64
1	80
4	52
1	76
3	64
3	72
3	64
11	30
16	10
16	32
26	14
13	10
10	39
11	16
13	14
13	10
17	10
17	10
6	42
1	56
12	14
7	32
14	10
3	52
3	52
1	64
1	64
1	33
0	64
14	10
5	46
11	10
7	11
4	28
8	10
11	10
3	52
3	52
3	48
3	39
9	10
7	11
6	10
9	16
3	39
10	10
10	4
6	16
6	14
1	48
7	10
4	28
2	40
6	10
9	10
2	44
7	10
1	48
3	40
6	10
6	14
6	10
8	16
10	14
2	39
0	39
4	14
1	39
12	10
3	10
5	16
6	10
6	4
6	16
5	14
2	14
4	16
4	16
5	20
2	30
4	10
1	14
4	10
3	10
3	10
2	16
2	10
1	32
5	16
1	24
1	28
3	10
3	16
3	16
3	14
0	28
3	10
1	14
0	22
2	16
4	10
4	10
5	10
2	10
2	10
1	10
2	10
2	10
0	14
1	14
3	16
2	16
2	10
1	16
3	10
1	10
1	14
0	16
0	16
0	16
2	11
1	12
1	4
0	3

Margin (mm)	Years the old record stood
22	86
19	86
18	80
20	80
14	86
15	64
24	32
14	80
17	32
9	100
24	14
17	52
15	52
28	10
32	10
24	10
6	86
18	14
13	52
20	32
2	106
10	86
22	10
6	76
13	52
1	100
7	64
1	100
16	14
9	52
1	100
15	52
3	88
11	52
17	32
14	10
5	80
4	76
4	76
0	92
1	80
3	76
4	64
1	86
4	64
1	80
4	52
1	76
3	64
3	72
3	64
11	30
16	10
16	32
26	14
13	10
10	39
11	16
13	14
13	10
17	10
17	10
6	42
1	56
12	14
7	32
14	10
3	52
3	52
1	64
1	64
1	33
0	64
14	10
5	46
11	10
7	11
4	28
8	10
11	10
3	52
3	52
3	48
3	39
9	10
7	11
6	10
9	16
3	39
10	10
10	4
6	16
6	14
1	48
7	10
4	28
2	40
6	10
9	10
2	44
7	10
1	48
3	40
6	10
6	14
6	10
8	16
10	14
2	39
0	39
4	14
1	39
12	10
3	10
5	16
6	10
6	4
6	16
5	14
2	14
4	16
4	16
5	20
2	30
4	10
1	14
4	10
3	10
3	10
2	16
2	10
1	32
5	16
1	24
1	28
3	10
3	16
3	16
3	14
0	28
3	10
1	14
0	22
2	16
4	10
4	10
5	10
2	10
2	10
1	10
2	10
2	10
0	14
1	14
3	16
2	16
2	10
1	16
3	10
1	10
1	14
0	16
0	16
0	16
2	11
1	12
1	4
0	3

Margin (mm)	Years the old record stood
22	86
19	86
18	80
20	80
14	86
15	64
24	32
14	80
17	32
9	100
24	14
17	52
15	52
28	10
32	10
24	10
6	86
18	14
13	52
20	32
2	106
10	86
22	10
6	76
13	52
1	100
7	64
1	100
16	14
9	52
1	100
15	52
3	88
11	52
17	32
14	10
5	80
4	76
4	76
0	92
1	80
3	76
4	64
1	86
4	64
1	80
4	52
1	76
3	64
3	72
3	64
11	30
16	10
16	32
26	14
13	10
10	39
11	16
13	14
13	10
17	10
17	10
6	42
1	56
12	14
7	32
14	10
3	52
3	52
1	64
1	64
1	33
0	64
14	10
5	46
11	10
7	11
4	28
8	10
11	10
3	52
3	52
3	48
3	39
9	10
7	11
6	10
9	16
3	39
10	10
10	4
6	16
6	14
1	48
7	10
4	28
2	40
6	10
9	10
2	44
7	10
1	48
3	40
6	10
6	14
6	10
8	16
10	14
2	39
0	39
4	14
1	39
12	10
3	10
5	16
6	10
6	4
6	16
5	14
2	14
4	16
4	16
5	20
2	30
4	10
1	14
4	10
3	10
3	10
2	16
2	10
1	32
5	16
1	24
1	28
3	10
3	16
3	16
3	14
0	28
3	10
1	14
0	22
2	16
4	10
4	10
5	10
2	10
2	10
1	10
2	10
2	10
0	14
1	14
3	16
2	16
2	10
1	16
3	10
1	10
1	14
0	16
0	16
0	16
2	11
1	12
1	4
0	3