Extreme rain in Norway and 4 other countries, 6 to 14 September 2018

Name: Extreme rain in Norway and 4 other countries, 6 to 14 September 2018
Start: 2018-09-06
End: 2018-09-14
Location: Norway, Finland, Sweden, Denmark, Russia

Extreme rain in Norway and 4 other countries, 6 to 14 September 2018: 227 records at 203 stations, peak on 11 September 2018. Closed.

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

Key Facts

Extreme rain in Norway and 4 other countries, 6 to 14 September 2018 set or tied 227 station records at 203 stations.
It ran from 6 September 2018 to 14 September 2018 (9 days) and its peak day was 11 September 2018.
Status: closed.
Mestad I Oddernes set a daily record precipitation of 132.1 mm (5.2 in) on 7 September 2018.
The busiest day was 11 September 2018 with 68 records.
The oldest broken record in the ranked list had stood for 133 years.

Footprint

6 to 14 September 2018

The area covered by Extreme rain in Norway and 4 other countries, 6 to 14 September 2018 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Extreme rain in Norway and 4 other countries, 6 to 14 September 2018: stations that set records in the event
Station	Type	Value	Date
Mestad I Oddernes	Record daily precipitation	132.1 mm (5.2 in)	2018-09-07
Punkaharju Laukansaari	Record daily precipitation	56.7 mm (2.2 in)	2018-09-11
Alingsas_D	Record daily precipitation	38.6 mm (1.5 in)	2018-09-07
Heinavesi Palokki	Record daily precipitation	56.5 mm (2.2 in)	2018-09-11
Landvik	Record daily precipitation	85.1 mm (3.4 in)	2018-09-07
Gronbaek-Allingskovgard	Record daily precipitation	32.2 mm (1.3 in)	2018-09-07
Uusikaupunki Nervanderinpuisto	Record daily precipitation	38.4 mm (1.5 in)	2018-09-10
Orsa_D	Record daily precipitation	31.9 mm (1.3 in)	2018-09-08
Biri	Record daily precipitation	54.7 mm (2.2 in)	2018-09-09
Savonlinna Laukansaari	Record daily precipitation	41.9 mm (1.6 in)	2018-09-11
Aseral	Record daily precipitation	114.2 mm (4.5 in)	2018-09-12
Jokioinen Jokioisten Observato	Record daily precipitation	30.8 mm (1.2 in)	2018-09-11
Savonlinna Savonranta	Record daily precipitation	32.8 mm (1.3 in)	2018-09-11
Sodankyla Vuotso	Record daily precipitation	35.5 mm (1.4 in)	2018-09-13
Raakkyla Kk	Record daily precipitation	35.2 mm (1.4 in)	2018-09-11
Juuka Niemela	Record daily precipitation	32.4 mm (1.3 in)	2018-09-11
Juupajoki Hyytiala	Record daily precipitation	31.4 mm (1.2 in)	2018-09-11
Kaarina Yltoinen	Record daily precipitation	25.2 mm (1.0 in)	2018-09-11
Nordby (Fano)	Record daily precipitation	24.2 mm (1.0 in)	2018-09-07

Records per Day

Peak day 68

Records set or tied each day from 6 September 2018 to 14 September 2018. The most in one day was 68 on 11 September 2018.

Records per day during Extreme rain in Norway and 4 other countries, 6 to 14 September 2018
Date	Records
2018-09-06	5
2018-09-07	45
2018-09-08	22
2018-09-09	24
2018-09-10	17
2018-09-11	68
2018-09-12	38
2018-09-13	7
2018-09-14	1

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Norway and 4 other countries, 6 to 14 September 2018 ranked by margin
Mestad I Oddernes, 09-07	74.9 mm (2.9 in)
Landvik, 09-07	54.9 mm (2.2 in)
Aseral, 09-07	38.3 mm (1.5 in)
Sodankyla Vuotso, 09-13	28.7 mm (1.1 in)
Orsa_D, 09-08	24.5 mm (1.0 in)
Savonlinna Laukansaari, 09-11	24.3 mm (1.0 in)
Savonlinna Savonranta, 09-11	23.6 mm (0.9 in)
Raakkyla Kk, 09-11	23.0 mm (0.9 in)
Alingsas_D, 09-07	21.1 mm (0.8 in)
Uusikaupunki Nervanderinpuisto, 09-10	20.9 mm (0.8 in)
Jokioinen Jokioisten Observato, 09-11	19.9 mm (0.8 in)
Heinavesi Palokki, 09-11	18.5 mm (0.7 in)
Juupajoki Hyytiala, 09-11	16.7 mm (0.7 in)
Juuka Niemela, 09-11	16.3 mm (0.6 in)
Biri, 09-09	15.5 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

227 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 4 other countries, 6 to 14 September 2018
Margin (mm)	Years the old record stood
75	44
15	49
19	37
21	68
55	44
15	73
21	52
16	91
25	44
24	39
20	32
24	39
11	59
38	44
29	20
23	24
16	52
17	52
5	133
15	35
9	93
17	40
13	52
16	35
25	45
7	95
7	85
12	31
3	108
3	101
19	44
13	39
14	20
24	44
3	112
24	48
15	31
1	101
9	44
11	44
13	16
11	39
11	39
12	27
17	31
27	44
10	40
11	40
8	56
15	37
8	44
5	53
14	44
7	68
7	26
12	33
7	60
6	60
8	40
6	60
6	52
12	24
7	47
8	59
8	0
13	39
2	44
9	39
11	44
13	20
10	21
10	24
7	48
11	36
6	45
22	31
5	52
6	33
13	4
17	48
21	20
10	44
11	24
7	31
6	39
2	60
15	4
7	44
19	31
13	44
5	31
3	56
1	64
4	52
6	39
5	44
10	31
1	68
11	1
5	40
6	41
6	45
2	48
9	44
4	44
11	16
5	39
3	49
7	24
3	55
3	44
5	45
19	13
5	39
2	52
5	40
4	44
2	52
4	40
6	43
7	44
1	44
13	13
11	39
0	30
3	33
6	31
12	16
8	24
2	44
4	32
3	41
2	52
8	5
0	55
10	4
4	41
0	52
0	21
5	31
8	5
9	39
4	44
1	40
5	37
1	52
1	52
2	40
2	39
5	36
20	8
14	8
11	4
2	39
11	12
10	0
5	24
2	40
2	39
0	47
10	4
19	4
1	44
4	29
0	37
2	39
15	13
3	36
10	13
1	40
2	32
2	27
2	35
5	23
1	0
8	4
4	27
5	31
2	29
2	29
5	20
4	9
6	11
6	7
2	27
2	32
0	28
5	0
4	0
2	31
5	4
4	7
0	24
1	13
14	5
1	24
9	8
3	11
2	16
1	4

Compared With Other Events

Station records per event

Station records in Extreme rain in Norway and 4 other countries, 6 to 14 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 4 other countries, 6 to 14 September 2018 (this event)	227 records

Every Record Set

20 of 227

Every record set or tied during Extreme rain in Norway and 4 other countries, 6 to 14 September 2018, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2018-09-07	Mestad I Oddernes	Record daily precipitation	132.1 mm (5.2 in)	74.9 mm (2.9 in)	44	63 of 100 (Major)
2018-09-07	Alingsas_D	Record daily precipitation	38.6 mm (1.5 in)	21.1 mm (0.8 in)	68	60 of 100 (Major)
2018-09-07	Landvik	Record daily precipitation	85.1 mm (3.4 in)	54.9 mm (2.2 in)	44	59 of 100 (Notable)
2018-09-07	Gronbaek-Allingskovgard	Record daily precipitation	32.2 mm (1.3 in)	15.1 mm (0.6 in)	73	58 of 100 (Notable)
2018-09-07	Aseral	Record daily precipitation	82.8 mm (3.3 in)	38.3 mm (1.5 in)	44	53 of 100 (Notable)
2018-09-07	Nordby (Fano)	Record daily precipitation	24.2 mm (1.0 in)	4.8 mm (0.19 in)	133	20 of 100 (Routine)
2018-09-08	Orsa_D	Record daily precipitation	31.9 mm (1.3 in)	24.5 mm (1.0 in)	44	57 of 100 (Notable)
2018-09-09	Biri	Record daily precipitation	54.7 mm (2.2 in)	15.5 mm (0.6 in)	91	57 of 100 (Notable)
2018-09-10	Uusikaupunki Nervanderinpuisto	Record daily precipitation	38.4 mm (1.5 in)	20.9 mm (0.8 in)	52	58 of 100 (Notable)
2018-09-11	Punkaharju Laukansaari	Record daily precipitation	56.7 mm (2.2 in)	15.4 mm (0.6 in)	49	61 of 100 (Major)
2018-09-11	Heinavesi Palokki	Record daily precipitation	56.5 mm (2.2 in)	18.5 mm (0.7 in)	37	60 of 100 (Major)
2018-09-11	Savonlinna Laukansaari	Record daily precipitation	41.9 mm (1.6 in)	24.3 mm (1.0 in)	39	56 of 100 (Notable)
2018-09-11	Jokioinen Jokioisten Observato	Record daily precipitation	30.8 mm (1.2 in)	19.9 mm (0.8 in)	32	55 of 100 (Notable)
2018-09-11	Savonlinna Savonranta	Record daily precipitation	32.8 mm (1.3 in)	23.6 mm (0.9 in)	39	55 of 100 (Notable)
2018-09-11	Raakkyla Kk	Record daily precipitation	35.2 mm (1.4 in)	23.0 mm (0.9 in)	24	51 of 100 (Notable)
2018-09-11	Juuka Niemela	Record daily precipitation	32.4 mm (1.3 in)	16.3 mm (0.6 in)	52	51 of 100 (Notable)
2018-09-11	Juupajoki Hyytiala	Record daily precipitation	31.4 mm (1.2 in)	16.7 mm (0.7 in)	52	50 of 100 (Notable)
2018-09-11	Kaarina Yltoinen	Record daily precipitation	25.2 mm (1.0 in)	15.3 mm (0.6 in)	35	46 of 100 (Notable)
2018-09-12	Aseral	Record daily precipitation	114.2 mm (4.5 in)	11.1 mm (0.4 in)	59	55 of 100 (Notable)
2018-09-13	Sodankyla Vuotso	Record daily precipitation	35.5 mm (1.4 in)	28.7 mm (1.1 in)	20	52 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 227 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
75	44
15	49
19	37
21	68
55	44
15	73
21	52
16	91
25	44
24	39
20	32
24	39
11	59
38	44
29	20
23	24
16	52
17	52
5	133
15	35
9	93
17	40
13	52
16	35
25	45
7	95
7	85
12	31
3	108
3	101
19	44
13	39
14	20
24	44
3	112
24	48
15	31
1	101
9	44
11	44
13	16
11	39
11	39
12	27
17	31
27	44
10	40
11	40
8	56
15	37
8	44
5	53
14	44
7	68
7	26
12	33
7	60
6	60
8	40
6	60
6	52
12	24
7	47
8	59
8	0
13	39
2	44
9	39
11	44
13	20
10	21
10	24
7	48
11	36
6	45
22	31
5	52
6	33
13	4
17	48
21	20
10	44
11	24
7	31
6	39
2	60
15	4
7	44
19	31
13	44
5	31
3	56
1	64
4	52
6	39
5	44
10	31
1	68
11	1
5	40
6	41
6	45
2	48
9	44
4	44
11	16
5	39
3	49
7	24
3	55
3	44
5	45
19	13
5	39
2	52
5	40
4	44
2	52
4	40
6	43
7	44
1	44
13	13
11	39
0	30
3	33
6	31
12	16
8	24
2	44
4	32
3	41
2	52
8	5
0	55
10	4
4	41
0	52
0	21
5	31
8	5
9	39
4	44
1	40
5	37
1	52
1	52
2	40
2	39
5	36
20	8
14	8
11	4
2	39
11	12
10	0
5	24
2	40
2	39
0	47
10	4
19	4
1	44
4	29
0	37
2	39
15	13
3	36
10	13
1	40
2	32
2	27
2	35
5	23
1	0
8	4
4	27
5	31
2	29
2	29
5	20
4	9
6	11
6	7
2	27
2	32
0	28
5	0
4	0
2	31
5	4
4	7
0	24
1	13
14	5
1	24
9	8
3	11
2	16
1	4

Margin (mm)	Years the old record stood
75	44
15	49
19	37
21	68
55	44
15	73
21	52
16	91
25	44
24	39
20	32
24	39
11	59
38	44
29	20
23	24
16	52
17	52
5	133
15	35
9	93
17	40
13	52
16	35
25	45
7	95
7	85
12	31
3	108
3	101
19	44
13	39
14	20
24	44
3	112
24	48
15	31
1	101
9	44
11	44
13	16
11	39
11	39
12	27
17	31
27	44
10	40
11	40
8	56
15	37
8	44
5	53
14	44
7	68
7	26
12	33
7	60
6	60
8	40
6	60
6	52
12	24
7	47
8	59
8	0
13	39
2	44
9	39
11	44
13	20
10	21
10	24
7	48
11	36
6	45
22	31
5	52
6	33
13	4
17	48
21	20
10	44
11	24
7	31
6	39
2	60
15	4
7	44
19	31
13	44
5	31
3	56
1	64
4	52
6	39
5	44
10	31
1	68
11	1
5	40
6	41
6	45
2	48
9	44
4	44
11	16
5	39
3	49
7	24
3	55
3	44
5	45
19	13
5	39
2	52
5	40
4	44
2	52
4	40
6	43
7	44
1	44
13	13
11	39
0	30
3	33
6	31
12	16
8	24
2	44
4	32
3	41
2	52
8	5
0	55
10	4
4	41
0	52
0	21
5	31
8	5
9	39
4	44
1	40
5	37
1	52
1	52
2	40
2	39
5	36
20	8
14	8
11	4
2	39
11	12
10	0
5	24
2	40
2	39
0	47
10	4
19	4
1	44
4	29
0	37
2	39
15	13
3	36
10	13
1	40
2	32
2	27
2	35
5	23
1	0
8	4
4	27
5	31
2	29
2	29
5	20
4	9
6	11
6	7
2	27
2	32
0	28
5	0
4	0
2	31
5	4
4	7
0	24
1	13
14	5
1	24
9	8
3	11
2	16
1	4

Margin (mm)	Years the old record stood
75	44
15	49
19	37
21	68
55	44
15	73
21	52
16	91
25	44
24	39
20	32
24	39
11	59
38	44
29	20
23	24
16	52
17	52
5	133
15	35
9	93
17	40
13	52
16	35
25	45
7	95
7	85
12	31
3	108
3	101
19	44
13	39
14	20
24	44
3	112
24	48
15	31
1	101
9	44
11	44
13	16
11	39
11	39
12	27
17	31
27	44
10	40
11	40
8	56
15	37
8	44
5	53
14	44
7	68
7	26
12	33
7	60
6	60
8	40
6	60
6	52
12	24
7	47
8	59
8	0
13	39
2	44
9	39
11	44
13	20
10	21
10	24
7	48
11	36
6	45
22	31
5	52
6	33
13	4
17	48
21	20
10	44
11	24
7	31
6	39
2	60
15	4
7	44
19	31
13	44
5	31
3	56
1	64
4	52
6	39
5	44
10	31
1	68
11	1
5	40
6	41
6	45
2	48
9	44
4	44
11	16
5	39
3	49
7	24
3	55
3	44
5	45
19	13
5	39
2	52
5	40
4	44
2	52
4	40
6	43
7	44
1	44
13	13
11	39
0	30
3	33
6	31
12	16
8	24
2	44
4	32
3	41
2	52
8	5
0	55
10	4
4	41
0	52
0	21
5	31
8	5
9	39
4	44
1	40
5	37
1	52
1	52
2	40
2	39
5	36
20	8
14	8
11	4
2	39
11	12
10	0
5	24
2	40
2	39
0	47
10	4
19	4
1	44
4	29
0	37
2	39
15	13
3	36
10	13
1	40
2	32
2	27
2	35
5	23
1	0
8	4
4	27
5	31
2	29
2	29
5	20
4	9
6	11
6	7
2	27
2	32
0	28
5	0
4	0
2	31
5	4
4	7
0	24
1	13
14	5
1	24
9	8
3	11
2	16
1	4