Extreme rain in Sweden and 3 other countries, 6 to 11 December 2018

Name: Extreme rain in Sweden and 3 other countries, 6 to 11 December 2018
Start: 2018-12-06
End: 2018-12-11
Location: Sweden, Finland, Norway, Russia

Extreme rain in Sweden and 3 other countries, 6 to 11 December 2018: 167 records at 139 stations, peak on 8 December 2018. Closed.

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

Key Facts

Extreme rain in Sweden and 3 other countries, 6 to 11 December 2018 set or tied 167 station records at 139 stations.
It ran from 6 December 2018 to 11 December 2018 (6 days) and its peak day was 8 December 2018.
Status: closed.
Harnosand set a daily record precipitation of 38.6 mm (1.5 in) on 8 December 2018.
The busiest day was 8 December 2018 with 98 records.
The oldest broken record in the ranked list had stood for 120 years.

Footprint

6 to 11 December 2018

The area covered by Extreme rain in Sweden and 3 other countries, 6 to 11 December 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 Sweden and 3 other countries, 6 to 11 December 2018: stations that set records in the event
Station	Type	Value	Date
Harnosand	Record daily precipitation	38.6 mm (1.5 in)	2018-12-08
Sidsjo	Record daily precipitation	32.5 mm (1.3 in)	2018-12-08
Hoglekardalen	Record daily precipitation	30.3 mm (1.2 in)	2018-12-08
Lovanger	Record daily precipitation	26.0 mm (1.0 in)	2018-12-09
Idre_D	Record daily precipitation	25.0 mm (1.0 in)	2018-12-08
Nora-Ostano_D	Record daily precipitation	40.0 mm (1.6 in)	2018-12-08
Galtjarn	Record daily precipitation	32.8 mm (1.3 in)	2018-12-08
Drevsjo	Record daily precipitation	15.2 mm (0.6 in)	2018-12-08
Sveg	Record daily precipitation	23.9 mm (0.9 in)	2018-12-08
Ytterberg_D	Record daily precipitation	19.6 mm (0.8 in)	2018-12-08
Bramon	Record daily precipitation	18.6 mm (0.7 in)	2018-12-08
Medskogen	Record daily precipitation	17.4 mm (0.7 in)	2018-12-08
Ratan	Record daily precipitation	23.6 mm (0.9 in)	2018-12-08
Ange-Parteboda D	Record daily precipitation	16.7 mm (0.7 in)	2018-12-08
Oraatjarnarna_D	Record daily precipitation	23.1 mm (0.9 in)	2018-12-08
Dodre	Record daily precipitation	21.4 mm (0.8 in)	2018-12-08
Morsil	Record daily precipitation	23.0 mm (0.9 in)	2018-12-08
Pitea	Record daily precipitation	19.2 mm (0.8 in)	2018-12-08
Rodkallen_A	Record daily precipitation	20.4 mm (0.8 in)	2018-12-09
Kalix_D	Record daily precipitation	18.4 mm (0.7 in)	2018-12-09

Records per Day

Peak day 98

Records set or tied each day from 6 December 2018 to 11 December 2018. The most in one day was 98 on 8 December 2018.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Sweden and 3 other countries, 6 to 11 December 2018 ranked by margin
Nora-Ostano_D, 12-08	30.8 mm (1.2 in)
Galtjarn, 12-08	20.2 mm (0.8 in)
Sidsjo, 12-08	20.1 mm (0.8 in)
Harnosand, 12-08	16.8 mm (0.7 in)
Lovanger, 12-09	16.3 mm (0.6 in)
Hoglekardalen, 12-08	15.3 mm (0.6 in)
Ratan, 12-08	15.1 mm (0.6 in)
Rodkallen_A, 12-09	14.8 mm (0.6 in)
Oraatjarnarna_D, 12-08	13.9 mm (0.5 in)
Morsil, 12-08	13.9 mm (0.5 in)
Bramon, 12-08	13.0 mm (0.5 in)
Dodre, 12-08	11.5 mm (0.5 in)
Drevsjo, 12-08	9.8 mm (0.39 in)
Ange-Parteboda D, 12-08	9.7 mm (0.38 in)
Ytterberg_D, 12-08	9.6 mm (0.38 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

167 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 Sweden and 3 other countries, 6 to 11 December 2018
Margin (mm)	Years the old record stood
17	120
20	72
13	64
9	109
15	56
10	72
15	52
16	52
15	35
8	73
14	35
7	46
12	35
9	35
10	35
14	31
31	24
10	17
8	65
20	24
17	0
6	72
8	35
9	35
6	68
9	35
6	32
7	69
9	35
10	43
6	68
12	0
9	9
11	0
5	60
10	9
2	76
10	9
5	32
3	32
6	31
5	43
8	31
7	9
10	0
1	73
13	36
8	24
6	17
2	68
8	31
11	0
9	0
2	72
6	31
9	24
10	0
4	53
10	0
7	17
2	64
3	53
4	41
2	64
3	52
2	60
1	72
1	72
4	35
7	17
6	17
7	24
3	43
2	53
7	0
2	52
6	1
1	47
2	27
5	7
5	35
4	20
2	43
4	17
4	24
2	35
7	24
5	24
1	47
2	41
1	52
2	40
2	6
4	7
1	7
0	45
2	41
2	36
4	7
3	20
4	24
4	24
4	0
3	19
2	31
2	28
1	32
1	32
2	24
2	24
1	29
3	7
4	0
3	12
3	0
1	35
0	41
3	7
5	0
1	33
1	29
1	29
2	12
3	9
3	7
3	0
1	11
1	20
2	12
2	9
2	19
2	9
0	20
0	29
2	0
1	24
1	24
1	3
0	24
3	0
2	3
2	7
2	7
2	0
2	9
2	1
1	7
0	24
0	29
0	17
1	12
1	4
0	8
2	12
0	11
2	7
2	0
1	12
1	8
1	12
0	23
2	3
2	0
2	0
0	8
0	7
0	7

Compared With Other Events

Station records per event

Station records in Extreme rain in Sweden and 3 other countries, 6 to 11 December 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 Sweden and 3 other countries, 6 to 11 December 2018 (this event)	167 records

Every Record Set

20 of 167

Every record set or tied during Extreme rain in Sweden and 3 other countries, 6 to 11 December 2018, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2018-12-08	Harnosand	Record daily precipitation	38.6 mm (1.5 in)	16.8 mm (0.7 in)	120	69 of 100 (Major)
2018-12-08	Sidsjo	Record daily precipitation	32.5 mm (1.3 in)	20.1 mm (0.8 in)	72	66 of 100 (Major)
2018-12-08	Hoglekardalen	Record daily precipitation	30.3 mm (1.2 in)	15.3 mm (0.6 in)	52	60 of 100 (Major)
2018-12-08	Idre_D	Record daily precipitation	25.0 mm (1.0 in)	6.7 mm (0.26 in)	46	53 of 100 (Notable)
2018-12-08	Nora-Ostano_D	Record daily precipitation	40.0 mm (1.6 in)	30.8 mm (1.2 in)	24	50 of 100 (Notable)
2018-12-08	Galtjarn	Record daily precipitation	32.8 mm (1.3 in)	20.2 mm (0.8 in)	24	47 of 100 (Notable)
2018-12-08	Drevsjo	Record daily precipitation	15.2 mm (0.6 in)	9.8 mm (0.39 in)	17	20 of 100 (Routine)
2018-12-08	Sveg	Record daily precipitation	23.9 mm (0.9 in)	7.5 mm (0.30 in)	73	20 of 100 (Routine)
2018-12-08	Ytterberg_D	Record daily precipitation	19.6 mm (0.8 in)	9.6 mm (0.38 in)	72	20 of 100 (Routine)
2018-12-08	Bramon	Record daily precipitation	18.6 mm (0.7 in)	13.0 mm (0.5 in)	64	20 of 100 (Routine)
2018-12-08	Medskogen	Record daily precipitation	17.4 mm (0.7 in)	9.0 mm (0.35 in)	35	20 of 100 (Routine)
2018-12-08	Ratan	Record daily precipitation	23.6 mm (0.9 in)	15.1 mm (0.6 in)	35	20 of 100 (Routine)
2018-12-08	Ange-Parteboda D	Record daily precipitation	16.7 mm (0.7 in)	9.7 mm (0.38 in)	35	20 of 100 (Routine)
2018-12-08	Oraatjarnarna_D	Record daily precipitation	23.1 mm (0.9 in)	13.9 mm (0.5 in)	31	20 of 100 (Routine)
2018-12-08	Dodre	Record daily precipitation	21.4 mm (0.8 in)	11.5 mm (0.5 in)	35	20 of 100 (Routine)
2018-12-08	Morsil	Record daily precipitation	23.0 mm (0.9 in)	13.9 mm (0.5 in)	35	20 of 100 (Routine)
2018-12-08	Pitea	Record daily precipitation	19.2 mm (0.8 in)	8.7 mm (0.34 in)	109	20 of 100 (Routine)
2018-12-09	Lovanger	Record daily precipitation	26.0 mm (1.0 in)	16.3 mm (0.6 in)	52	59 of 100 (Notable)
2018-12-09	Rodkallen_A	Record daily precipitation	20.4 mm (0.8 in)	14.8 mm (0.6 in)	56	20 of 100 (Routine)
2018-12-09	Kalix_D	Record daily precipitation	18.4 mm (0.7 in)	8.4 mm (0.33 in)	65	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 167 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
2018-12-06	12
2018-12-07	13
2018-12-08	98
2018-12-09	38
2018-12-10	5
2018-12-11	1

Margin (mm)	Years the old record stood
17	120
20	72
13	64
9	109
15	56
10	72
15	52
16	52
15	35
8	73
14	35
7	46
12	35
9	35
10	35
14	31
31	24
10	17
8	65
20	24
17	0
6	72
8	35
9	35
6	68
9	35
6	32
7	69
9	35
10	43
6	68
12	0
9	9
11	0
5	60
10	9
2	76
10	9
5	32
3	32
6	31
5	43
8	31
7	9
10	0
1	73
13	36
8	24
6	17
2	68
8	31
11	0
9	0
2	72
6	31
9	24
10	0
4	53
10	0
7	17
2	64
3	53
4	41
2	64
3	52
2	60
1	72
1	72
4	35
7	17
6	17
7	24
3	43
2	53
7	0
2	52
6	1
1	47
2	27
5	7
5	35
4	20
2	43
4	17
4	24
2	35
7	24
5	24
1	47
2	41
1	52
2	40
2	6
4	7
1	7
0	45
2	41
2	36
4	7
3	20
4	24
4	24
4	0
3	19
2	31
2	28
1	32
1	32
2	24
2	24
1	29
3	7
4	0
3	12
3	0
1	35
0	41
3	7
5	0
1	33
1	29
1	29
2	12
3	9
3	7
3	0
1	11
1	20
2	12
2	9
2	19
2	9
0	20
0	29
2	0
1	24
1	24
1	3
0	24
3	0
2	3
2	7
2	7
2	0
2	9
2	1
1	7
0	24
0	29
0	17
1	12
1	4
0	8
2	12
0	11
2	7
2	0
1	12
1	8
1	12
0	23
2	3
2	0
2	0
0	8
0	7
0	7

Margin (mm)	Years the old record stood
17	120
20	72
13	64
9	109
15	56
10	72
15	52
16	52
15	35
8	73
14	35
7	46
12	35
9	35
10	35
14	31
31	24
10	17
8	65
20	24
17	0
6	72
8	35
9	35
6	68
9	35
6	32
7	69
9	35
10	43
6	68
12	0
9	9
11	0
5	60
10	9
2	76
10	9
5	32
3	32
6	31
5	43
8	31
7	9
10	0
1	73
13	36
8	24
6	17
2	68
8	31
11	0
9	0
2	72
6	31
9	24
10	0
4	53
10	0
7	17
2	64
3	53
4	41
2	64
3	52
2	60
1	72
1	72
4	35
7	17
6	17
7	24
3	43
2	53
7	0
2	52
6	1
1	47
2	27
5	7
5	35
4	20
2	43
4	17
4	24
2	35
7	24
5	24
1	47
2	41
1	52
2	40
2	6
4	7
1	7
0	45
2	41
2	36
4	7
3	20
4	24
4	24
4	0
3	19
2	31
2	28
1	32
1	32
2	24
2	24
1	29
3	7
4	0
3	12
3	0
1	35
0	41
3	7
5	0
1	33
1	29
1	29
2	12
3	9
3	7
3	0
1	11
1	20
2	12
2	9
2	19
2	9
0	20
0	29
2	0
1	24
1	24
1	3
0	24
3	0
2	3
2	7
2	7
2	0
2	9
2	1
1	7
0	24
0	29
0	17
1	12
1	4
0	8
2	12
0	11
2	7
2	0
1	12
1	8
1	12
0	23
2	3
2	0
2	0
0	8
0	7
0	7

Margin (mm)	Years the old record stood
17	120
20	72
13	64
9	109
15	56
10	72
15	52
16	52
15	35
8	73
14	35
7	46
12	35
9	35
10	35
14	31
31	24
10	17
8	65
20	24
17	0
6	72
8	35
9	35
6	68
9	35
6	32
7	69
9	35
10	43
6	68
12	0
9	9
11	0
5	60
10	9
2	76
10	9
5	32
3	32
6	31
5	43
8	31
7	9
10	0
1	73
13	36
8	24
6	17
2	68
8	31
11	0
9	0
2	72
6	31
9	24
10	0
4	53
10	0
7	17
2	64
3	53
4	41
2	64
3	52
2	60
1	72
1	72
4	35
7	17
6	17
7	24
3	43
2	53
7	0
2	52
6	1
1	47
2	27
5	7
5	35
4	20
2	43
4	17
4	24
2	35
7	24
5	24
1	47
2	41
1	52
2	40
2	6
4	7
1	7
0	45
2	41
2	36
4	7
3	20
4	24
4	24
4	0
3	19
2	31
2	28
1	32
1	32
2	24
2	24
1	29
3	7
4	0
3	12
3	0
1	35
0	41
3	7
5	0
1	33
1	29
1	29
2	12
3	9
3	7
3	0
1	11
1	20
2	12
2	9
2	19
2	9
0	20
0	29
2	0
1	24
1	24
1	3
0	24
3	0
2	3
2	7
2	7
2	0
2	9
2	1
1	7
0	24
0	29
0	17
1	12
1	4
0	8
2	12
0	11
2	7
2	0
1	12
1	8
1	12
0	23
2	3
2	0
2	0
0	8
0	7
0	7