Extreme rain in Norway and Sweden, 20 to 26 September 2018

Name: Extreme rain in Norway and Sweden, 20 to 26 September 2018
Start: 2018-09-20
End: 2018-09-26
Location: Norway, Sweden

Extreme rain in Norway and Sweden, 20 to 26 September 2018: 151 records at 121 stations, peak on 25 September 2018. Closed.

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

Key Facts

Extreme rain in Norway and Sweden, 20 to 26 September 2018 set or tied 151 station records at 121 stations.
It ran from 20 September 2018 to 26 September 2018 (7 days) and its peak day was 25 September 2018.
Status: closed.
Kjobli I Snaasa set a daily record precipitation of 50.8 mm (2.0 in) on 25 September 2018.
The busiest day was 25 September 2018 with 59 records.
The oldest broken record in the ranked list had stood for 120 years.

Footprint

20 to 26 September 2018

The area covered by Extreme rain in Norway and Sweden, 20 to 26 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 Norway and Sweden, 20 to 26 September 2018: stations that set records in the event
Station	Type	Value	Date
Kjobli I Snaasa	Record daily precipitation	50.8 mm (2.0 in)	2018-09-25
Utgard	Record daily precipitation	56.8 mm (2.2 in)	2018-09-25
Susendal	Record daily precipitation	30.0 mm (1.2 in)	2018-09-25
Sandnas	Record daily precipitation	39.0 mm (1.5 in)	2018-09-25
Buran	Record daily precipitation	31.5 mm (1.2 in)	2018-09-25
Risnes I Fjotland	Record daily precipitation	64.8 mm (2.6 in)	2018-09-21
Hafslo	Record daily precipitation	48.3 mm (1.9 in)	2018-09-25
Heggeriset - Nordstrand	Record daily precipitation	44.2 mm (1.7 in)	2018-09-21
Orland	Record daily precipitation	34.1 mm (1.3 in)	2018-09-25
Vik I Sogn III	Record daily precipitation	25.2 mm (1.0 in)	2018-09-21
Norddal	Record daily precipitation	38.6 mm (1.5 in)	2018-09-22
Gronning	Record daily precipitation	56.0 mm (2.2 in)	2018-09-22
Mierkenis_A	Record daily precipitation	25.1 mm (1.0 in)	2018-09-23
Bjorheim I Ryfylke	Record daily precipitation	74.0 mm (2.9 in)	2018-09-25
Lysebotn	Record daily precipitation	56.7 mm (2.2 in)	2018-09-21
Luroy	Record daily precipitation	114.4 mm (4.5 in)	2018-09-25
Sorli	Record daily precipitation	33.9 mm (1.3 in)	2018-09-25
Afjord - Momyr	Record daily precipitation	88.9 mm (3.5 in)	2018-09-25
Overhalla - Unnset	Record daily precipitation	42.5 mm (1.7 in)	2018-09-25
Gordalen	Record daily precipitation	25.4 mm (1.0 in)	2018-09-21

Records per Day

Peak day 59

Records set or tied each day from 20 September 2018 to 26 September 2018. The most in one day was 59 on 25 September 2018.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Norway and Sweden, 20 to 26 September 2018 ranked by margin
Luroy, 09-25	43.3 mm (1.7 in)
Afjord - Momyr, 09-25	41.1 mm (1.6 in)
Gronning, 09-22	34.6 mm (1.4 in)
Bjorheim I Ryfylke, 09-25	33.5 mm (1.3 in)
Heggeriset - Nordstrand, 09-21	27.6 mm (1.1 in)
Kjobli I Snaasa, 09-25	25.6 mm (1.0 in)
Utgard, 09-25	21.4 mm (0.8 in)
Overhalla - Unnset, 09-25	21.4 mm (0.8 in)
Risnes I Fjotland, 09-21	19.6 mm (0.8 in)
Sandnas, 09-25	19.5 mm (0.8 in)
Buran, 09-25	18.7 mm (0.7 in)
Orland, 09-25	18.0 mm (0.7 in)
Gordalen, 09-21	13.1 mm (0.5 in)
Susendal, 09-25	11.5 mm (0.5 in)
Lysebotn, 09-21	8.7 mm (0.34 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

151 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 Norway and Sweden, 20 to 26 September 2018
Margin (mm)	Years the old record stood
26	107
21	36
12	99
20	57
19	47
20	80
0	120
18	57
28	13
7	99
8	96
34	25
35	32
5	96
9	92
43	39
3	67
41	35
21	35
13	64
22	36
0	111
26	43
3	84
28	43
40	15
5	59
8	53
18	32
25	25
13	52
8	23
18	35
23	39
35	15
16	24
28	23
26	11
23	27
16	39
10	35
17	43
10	3
7	9
16	19
14	48
14	43
14	45
18	35
12	45
7	45
12	27
6	24
20	8
29	23
9	44
7	31
8	43
7	27
3	48
31	23
7	24
7	52
26	23
24	15
15	11
11	45
10	48
12	23
5	35
12	8
13	39
10	44
8	39
22	20
8	7
9	35
11	19
20	15
6	24
3	55
2	35
7	32
7	13
3	44
1	5
3	45
3	44
6	23
6	35
5	32
6	24
1	48
7	39
12	19
1	49
6	29
4	24
0	48
8	19
0	36
4	27
1	36
4	31
2	35
5	16
9	25
1	48
1	47
0	47
7	15
6	13
7	28
1	44
11	15
5	15
0	24
2	32
8	23
5	19
5	36
6	7
2	35
8	15
7	3
0	36
3	24
14	8
2	27
3	24
9	19
3	0
7	23
5	4
3	24
0	24
6	15
2	27
7	15
3	3
5	8
2	19
0	24
0	12
2	13
7	8
2	4
2	15
3	11
0	8
0	8

Compared With Other Events

Station records per event

Station records in Extreme rain in Norway and Sweden, 20 to 26 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 Norway and Sweden, 20 to 26 September 2018 (this event)	151 records

Every Record Set

20 of 151

Every record set or tied during Extreme rain in Norway and Sweden, 20 to 26 September 2018, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2018-09-21	Risnes I Fjotland	Record daily precipitation	64.8 mm (2.6 in)	19.6 mm (0.8 in)	80	50 of 100 (Notable)
2018-09-21	Heggeriset - Nordstrand	Record daily precipitation	44.2 mm (1.7 in)	27.6 mm (1.1 in)	13	49 of 100 (Notable)
2018-09-21	Vik I Sogn III	Record daily precipitation	25.2 mm (1.0 in)	6.9 mm (0.27 in)	99	48 of 100 (Notable)
2018-09-21	Lysebotn	Record daily precipitation	56.7 mm (2.2 in)	8.7 mm (0.34 in)	92	44 of 100 (Notable)
2018-09-21	Gordalen	Record daily precipitation	25.4 mm (1.0 in)	13.1 mm (0.5 in)	64	41 of 100 (Notable)
2018-09-22	Norddal	Record daily precipitation	38.6 mm (1.5 in)	8.1 mm (0.32 in)	96	48 of 100 (Notable)
2018-09-22	Gronning	Record daily precipitation	56.0 mm (2.2 in)	34.6 mm (1.4 in)	32	46 of 100 (Notable)
2018-09-23	Mierkenis_A	Record daily precipitation	25.1 mm (1.0 in)	4.8 mm (0.19 in)	96	46 of 100 (Notable)
2018-09-25	Kjobli I Snaasa	Record daily precipitation	50.8 mm (2.0 in)	25.6 mm (1.0 in)	107	80 of 100 (Exceptional)
2018-09-25	Utgard	Record daily precipitation	56.8 mm (2.2 in)	21.4 mm (0.8 in)	36	62 of 100 (Major)
2018-09-25	Susendal	Record daily precipitation	30.0 mm (1.2 in)	11.5 mm (0.5 in)	99	60 of 100 (Major)
2018-09-25	Sandnas	Record daily precipitation	39.0 mm (1.5 in)	19.5 mm (0.8 in)	57	56 of 100 (Notable)
2018-09-25	Buran	Record daily precipitation	31.5 mm (1.2 in)	18.7 mm (0.7 in)	47	51 of 100 (Notable)
2018-09-25	Hafslo	Record daily precipitation	48.3 mm (1.9 in)	0.3 mm (0.01 in)	120	50 of 100 (Notable)
2018-09-25	Orland	Record daily precipitation	34.1 mm (1.3 in)	18.0 mm (0.7 in)	57	49 of 100 (Notable)
2018-09-25	Bjorheim I Ryfylke	Record daily precipitation	74.0 mm (2.9 in)	33.5 mm (1.3 in)	25	46 of 100 (Notable)
2018-09-25	Luroy	Record daily precipitation	114.4 mm (4.5 in)	43.3 mm (1.7 in)	39	44 of 100 (Notable)
2018-09-25	Sorli	Record daily precipitation	33.9 mm (1.3 in)	2.8 mm (0.11 in)	67	43 of 100 (Notable)
2018-09-25	Afjord - Momyr	Record daily precipitation	88.9 mm (3.5 in)	41.1 mm (1.6 in)	35	43 of 100 (Notable)
2018-09-25	Overhalla - Unnset	Record daily precipitation	42.5 mm (1.7 in)	21.4 mm (0.8 in)	35	42 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 151 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
2018-09-20	3
2018-09-21	55
2018-09-22	14
2018-09-23	10
2018-09-24	3
2018-09-25	59
2018-09-26	7

Margin (mm)	Years the old record stood
26	107
21	36
12	99
20	57
19	47
20	80
0	120
18	57
28	13
7	99
8	96
34	25
35	32
5	96
9	92
43	39
3	67
41	35
21	35
13	64
22	36
0	111
26	43
3	84
28	43
40	15
5	59
8	53
18	32
25	25
13	52
8	23
18	35
23	39
35	15
16	24
28	23
26	11
23	27
16	39
10	35
17	43
10	3
7	9
16	19
14	48
14	43
14	45
18	35
12	45
7	45
12	27
6	24
20	8
29	23
9	44
7	31
8	43
7	27
3	48
31	23
7	24
7	52
26	23
24	15
15	11
11	45
10	48
12	23
5	35
12	8
13	39
10	44
8	39
22	20
8	7
9	35
11	19
20	15
6	24
3	55
2	35
7	32
7	13
3	44
1	5
3	45
3	44
6	23
6	35
5	32
6	24
1	48
7	39
12	19
1	49
6	29
4	24
0	48
8	19
0	36
4	27
1	36
4	31
2	35
5	16
9	25
1	48
1	47
0	47
7	15
6	13
7	28
1	44
11	15
5	15
0	24
2	32
8	23
5	19
5	36
6	7
2	35
8	15
7	3
0	36
3	24
14	8
2	27
3	24
9	19
3	0
7	23
5	4
3	24
0	24
6	15
2	27
7	15
3	3
5	8
2	19
0	24
0	12
2	13
7	8
2	4
2	15
3	11
0	8
0	8

Margin (mm)	Years the old record stood
26	107
21	36
12	99
20	57
19	47
20	80
0	120
18	57
28	13
7	99
8	96
34	25
35	32
5	96
9	92
43	39
3	67
41	35
21	35
13	64
22	36
0	111
26	43
3	84
28	43
40	15
5	59
8	53
18	32
25	25
13	52
8	23
18	35
23	39
35	15
16	24
28	23
26	11
23	27
16	39
10	35
17	43
10	3
7	9
16	19
14	48
14	43
14	45
18	35
12	45
7	45
12	27
6	24
20	8
29	23
9	44
7	31
8	43
7	27
3	48
31	23
7	24
7	52
26	23
24	15
15	11
11	45
10	48
12	23
5	35
12	8
13	39
10	44
8	39
22	20
8	7
9	35
11	19
20	15
6	24
3	55
2	35
7	32
7	13
3	44
1	5
3	45
3	44
6	23
6	35
5	32
6	24
1	48
7	39
12	19
1	49
6	29
4	24
0	48
8	19
0	36
4	27
1	36
4	31
2	35
5	16
9	25
1	48
1	47
0	47
7	15
6	13
7	28
1	44
11	15
5	15
0	24
2	32
8	23
5	19
5	36
6	7
2	35
8	15
7	3
0	36
3	24
14	8
2	27
3	24
9	19
3	0
7	23
5	4
3	24
0	24
6	15
2	27
7	15
3	3
5	8
2	19
0	24
0	12
2	13
7	8
2	4
2	15
3	11
0	8
0	8

Margin (mm)	Years the old record stood
26	107
21	36
12	99
20	57
19	47
20	80
0	120
18	57
28	13
7	99
8	96
34	25
35	32
5	96
9	92
43	39
3	67
41	35
21	35
13	64
22	36
0	111
26	43
3	84
28	43
40	15
5	59
8	53
18	32
25	25
13	52
8	23
18	35
23	39
35	15
16	24
28	23
26	11
23	27
16	39
10	35
17	43
10	3
7	9
16	19
14	48
14	43
14	45
18	35
12	45
7	45
12	27
6	24
20	8
29	23
9	44
7	31
8	43
7	27
3	48
31	23
7	24
7	52
26	23
24	15
15	11
11	45
10	48
12	23
5	35
12	8
13	39
10	44
8	39
22	20
8	7
9	35
11	19
20	15
6	24
3	55
2	35
7	32
7	13
3	44
1	5
3	45
3	44
6	23
6	35
5	32
6	24
1	48
7	39
12	19
1	49
6	29
4	24
0	48
8	19
0	36
4	27
1	36
4	31
2	35
5	16
9	25
1	48
1	47
0	47
7	15
6	13
7	28
1	44
11	15
5	15
0	24
2	32
8	23
5	19
5	36
6	7
2	35
8	15
7	3
0	36
3	24
14	8
2	27
3	24
9	19
3	0
7	23
5	4
3	24
0	24
6	15
2	27
7	15
3	3
5	8
2	19
0	24
0	12
2	13
7	8
2	4
2	15
3	11
0	8
0	8