Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020

Name: Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020
Start: 2020-10-04
End: 2020-10-12
Location: Sweden, Norway, Finland, Russia, Denmark

Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020: 259 records at 217 stations, peak on 6 October 2020. Closed.

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

Key Facts

Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020 set or tied 259 station records at 217 stations.
It ran from 4 October 2020 to 12 October 2020 (9 days) and its peak day was 6 October 2020.
Status: closed.
Reinli set a monthly record daily precipitation of 66.3 mm (2.6 in) on 4 October 2020.
The busiest day was 6 October 2020 with 101 records.
The oldest broken record in the ranked list had stood for 123 years.

Footprint

4 to 12 October 2020

The area covered by Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020 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 4 other countries, 4 to 12 October 2020: stations that set records in the event
Station	Type	Value	Date
Reinli	Record daily precipitation	66.3 mm (2.6 in)	2020-10-04
Postmyr I Drangedal	Record daily precipitation	76.6 mm (3.0 in)	2020-10-04
Hult	Record daily precipitation	32.7 mm (1.3 in)	2020-10-06
Odeshog	Record daily precipitation	36.0 mm (1.4 in)	2020-10-06
Lulea Flygplats	Record daily precipitation	31.1 mm (1.2 in)	2020-10-06
Tunhovd	Record daily precipitation	30.5 mm (1.2 in)	2020-10-04
Karlsborg_Mo	Record daily precipitation	27.6 mm (1.1 in)	2020-10-06
Geilo	Record daily precipitation	31.5 mm (1.2 in)	2020-10-04
Hogemalen	Record daily precipitation	28.8 mm (1.1 in)	2020-10-05
Bengtsfors_D	Record daily precipitation	33.6 mm (1.3 in)	2020-10-04
Lulea-Bergnaset	Record daily precipitation	30.2 mm (1.2 in)	2020-10-06
Foldsae	Record daily precipitation	39.9 mm (1.6 in)	2020-10-04
Hakavik	Record daily precipitation	43.4 mm (1.7 in)	2020-10-04
Vattholma	Record daily precipitation	28.2 mm (1.1 in)	2020-10-06
Saffle	Record daily precipitation	39.0 mm (1.5 in)	2020-10-06
Boden	Record daily precipitation	25.8 mm (1.0 in)	2020-10-06
Karlshamn	Record daily precipitation	23.6 mm (0.9 in)	2020-10-06
Hyndevad	Record daily precipitation	23.0 mm (0.9 in)	2020-10-06
Alvsbyn_A	Record daily precipitation	24.8 mm (1.0 in)	2020-10-06
Gallivare_A	Record daily precipitation	18.7 mm (0.7 in)	2020-10-07

Records per Day

Peak day 101

Records set or tied each day from 4 October 2020 to 12 October 2020. The most in one day was 101 on 6 October 2020.

Records per day during Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020
Date	Records
2020-10-04	72
2020-10-05	13
2020-10-06	101
2020-10-07	7
2020-10-08	12
2020-10-09	22
2020-10-10	17
2020-10-11	14
2020-10-12	1

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020 ranked by margin
Postmyr I Drangedal, 10-04	35.2 mm (1.4 in)
Hakavik, 10-04	27.2 mm (1.1 in)
Reinli, 10-04	21.7 mm (0.9 in)
Odeshog, 10-06	21.2 mm (0.8 in)
Lulea Flygplats, 10-06	21.1 mm (0.8 in)
Vattholma, 10-06	19.3 mm (0.8 in)
Lulea-Bergnaset, 10-06	19.1 mm (0.8 in)
Foldsae, 10-04	18.9 mm (0.7 in)
Hult, 10-06	17.7 mm (0.7 in)
Boden, 10-06	15.3 mm (0.6 in)
Karlsborg_Mo, 10-06	14.3 mm (0.6 in)
Bengtsfors_D, 10-04	14.2 mm (0.6 in)
Hyndevad, 10-06	13.6 mm (0.5 in)
Saffle, 10-06	13.3 mm (0.5 in)
Hogemalen, 10-05	12.6 mm (0.5 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

259 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 4 other countries, 4 to 12 October 2020
Margin (mm)	Years the old record stood
22	55
35	86
18	68
21	31
21	29
12	60
14	68
10	86
6	117
13	65
14	74
19	9
19	60
27	53
19	11
13	68
14	44
5	91
10	45
15	29
5	86
2	104
16	39
33	6
22	6
9	50
6	52
18	36
26	12
10	74
12	36
9	45
1	123
1	115
19	6
13	57
11	44
13	20
26	12
10	39
12	20
6	54
7	19
10	35
8	53
17	16
4	74
15	10
13	30
10	40
5	60
1	86
5	65
9	44
12	43
11	36
10	37
10	45
3	82
4	68
12	17
12	20
16	17
11	20
4	39
9	47
8	29
9	45
19	16
3	61
8	43
13	43
3	68
7	26
7	29
5	39
8	30
13	36
9	36
4	46
8	29
6	40
11	11
5	47
11	19
2	65
4	55
13	13
4	53
6	37
12	10
2	60
4	52
1	65
7	43
15	11
10	9
5	35
4	49
3	59
7	20
6	17
9	11
4	50
9	18
4	35
3	48
3	48
0	68
6	39
6	39
13	27
3	50
5	43
6	30
3	43
13	17
4	36
5	36
3	50
4	32
4	39
4	39
5	35
4	36
8	11
12	8
5	32
3	46
1	57
1	50
2	48
3	39
3	27
2	39
6	20
2	44
2	19
4	29
3	39
9	20
3	45
0	54
3	39
9	12
1	53
6	9
7	20
4	39
3	39
8	36
5	30
3	29
13	7
3	36
6	11
2	39
6	17
13	6
6	26
1	46
1	49
1	49
9	16
15	16
5	30
1	43
0	44
5	11
7	11
7	11
1	19
1	46
2	46
4	21
6	9
2	43
2	29
7	20
7	16
0	32
2	39
3	21
5	8
5	11
3	21
1	40
6	11
5	11
7	11
6	11
5	12
3	27
6	27
4	14
0	39
0	43
1	39
2	1
3	20

Compared With Other Events

Station records per event

Station records in Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020 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 4 other countries, 4 to 12 October 2020 (this event)	259 records

Every Record Set

20 of 259

Every record set or tied during Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-10-04	Reinli	Record daily precipitation	66.3 mm (2.6 in)	21.7 mm (0.9 in)	55	68 of 100 (Major)
2020-10-04	Postmyr I Drangedal	Record daily precipitation	76.6 mm (3.0 in)	35.2 mm (1.4 in)	86	66 of 100 (Major)
2020-10-04	Tunhovd	Record daily precipitation	30.5 mm (1.2 in)	11.6 mm (0.5 in)	60	54 of 100 (Notable)
2020-10-04	Geilo	Record daily precipitation	31.5 mm (1.2 in)	9.5 mm (0.37 in)	86	52 of 100 (Notable)
2020-10-04	Bengtsfors_D	Record daily precipitation	33.6 mm (1.3 in)	14.2 mm (0.6 in)	74	50 of 100 (Notable)
2020-10-04	Foldsae	Record daily precipitation	39.9 mm (1.6 in)	18.9 mm (0.7 in)	60	48 of 100 (Notable)
2020-10-04	Hakavik	Record daily precipitation	43.4 mm (1.7 in)	27.2 mm (1.1 in)	53	48 of 100 (Notable)
2020-10-05	Hogemalen	Record daily precipitation	28.8 mm (1.1 in)	12.6 mm (0.5 in)	65	51 of 100 (Notable)
2020-10-06	Hult	Record daily precipitation	32.7 mm (1.3 in)	17.7 mm (0.7 in)	68	60 of 100 (Major)
2020-10-06	Odeshog	Record daily precipitation	36.0 mm (1.4 in)	21.2 mm (0.8 in)	31	55 of 100 (Notable)
2020-10-06	Lulea Flygplats	Record daily precipitation	31.1 mm (1.2 in)	21.1 mm (0.8 in)	29	55 of 100 (Notable)
2020-10-06	Karlsborg_Mo	Record daily precipitation	27.6 mm (1.1 in)	14.3 mm (0.6 in)	68	54 of 100 (Notable)
2020-10-06	Lulea-Bergnaset	Record daily precipitation	30.2 mm (1.2 in)	19.1 mm (0.8 in)	9	49 of 100 (Notable)
2020-10-06	Vattholma	Record daily precipitation	28.2 mm (1.1 in)	19.3 mm (0.8 in)	11	48 of 100 (Notable)
2020-10-06	Saffle	Record daily precipitation	39.0 mm (1.5 in)	13.3 mm (0.5 in)	68	46 of 100 (Notable)
2020-10-06	Boden	Record daily precipitation	25.8 mm (1.0 in)	15.3 mm (0.6 in)	29	45 of 100 (Notable)
2020-10-06	Karlshamn	Record daily precipitation	23.6 mm (0.9 in)	5.7 mm (0.22 in)	117	20 of 100 (Routine)
2020-10-06	Hyndevad	Record daily precipitation	23.0 mm (0.9 in)	13.6 mm (0.5 in)	44	20 of 100 (Routine)
2020-10-06	Alvsbyn_A	Record daily precipitation	24.8 mm (1.0 in)	10.4 mm (0.4 in)	45	20 of 100 (Routine)
2020-10-07	Gallivare_A	Record daily precipitation	18.7 mm (0.7 in)	4.5 mm (0.18 in)	91	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 259 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
22	55
35	86
18	68
21	31
21	29
12	60
14	68
10	86
6	117
13	65
14	74
19	9
19	60
27	53
19	11
13	68
14	44
5	91
10	45
15	29
5	86
2	104
16	39
33	6
22	6
9	50
6	52
18	36
26	12
10	74
12	36
9	45
1	123
1	115
19	6
13	57
11	44
13	20
26	12
10	39
12	20
6	54
7	19
10	35
8	53
17	16
4	74
15	10
13	30
10	40
5	60
1	86
5	65
9	44
12	43
11	36
10	37
10	45
3	82
4	68
12	17
12	20
16	17
11	20
4	39
9	47
8	29
9	45
19	16
3	61
8	43
13	43
3	68
7	26
7	29
5	39
8	30
13	36
9	36
4	46
8	29
6	40
11	11
5	47
11	19
2	65
4	55
13	13
4	53
6	37
12	10
2	60
4	52
1	65
7	43
15	11
10	9
5	35
4	49
3	59
7	20
6	17
9	11
4	50
9	18
4	35
3	48
3	48
0	68
6	39
6	39
13	27
3	50
5	43
6	30
3	43
13	17
4	36
5	36
3	50
4	32
4	39
4	39
5	35
4	36
8	11
12	8
5	32
3	46
1	57
1	50
2	48
3	39
3	27
2	39
6	20
2	44
2	19
4	29
3	39
9	20
3	45
0	54
3	39
9	12
1	53
6	9
7	20
4	39
3	39
8	36
5	30
3	29
13	7
3	36
6	11
2	39
6	17
13	6
6	26
1	46
1	49
1	49
9	16
15	16
5	30
1	43
0	44
5	11
7	11
7	11
1	19
1	46
2	46
4	21
6	9
2	43
2	29
7	20
7	16
0	32
2	39
3	21
5	8
5	11
3	21
1	40
6	11
5	11
7	11
6	11
5	12
3	27
6	27
4	14
0	39
0	43
1	39
2	1
3	20

Margin (mm)	Years the old record stood
22	55
35	86
18	68
21	31
21	29
12	60
14	68
10	86
6	117
13	65
14	74
19	9
19	60
27	53
19	11
13	68
14	44
5	91
10	45
15	29
5	86
2	104
16	39
33	6
22	6
9	50
6	52
18	36
26	12
10	74
12	36
9	45
1	123
1	115
19	6
13	57
11	44
13	20
26	12
10	39
12	20
6	54
7	19
10	35
8	53
17	16
4	74
15	10
13	30
10	40
5	60
1	86
5	65
9	44
12	43
11	36
10	37
10	45
3	82
4	68
12	17
12	20
16	17
11	20
4	39
9	47
8	29
9	45
19	16
3	61
8	43
13	43
3	68
7	26
7	29
5	39
8	30
13	36
9	36
4	46
8	29
6	40
11	11
5	47
11	19
2	65
4	55
13	13
4	53
6	37
12	10
2	60
4	52
1	65
7	43
15	11
10	9
5	35
4	49
3	59
7	20
6	17
9	11
4	50
9	18
4	35
3	48
3	48
0	68
6	39
6	39
13	27
3	50
5	43
6	30
3	43
13	17
4	36
5	36
3	50
4	32
4	39
4	39
5	35
4	36
8	11
12	8
5	32
3	46
1	57
1	50
2	48
3	39
3	27
2	39
6	20
2	44
2	19
4	29
3	39
9	20
3	45
0	54
3	39
9	12
1	53
6	9
7	20
4	39
3	39
8	36
5	30
3	29
13	7
3	36
6	11
2	39
6	17
13	6
6	26
1	46
1	49
1	49
9	16
15	16
5	30
1	43
0	44
5	11
7	11
7	11
1	19
1	46
2	46
4	21
6	9
2	43
2	29
7	20
7	16
0	32
2	39
3	21
5	8
5	11
3	21
1	40
6	11
5	11
7	11
6	11
5	12
3	27
6	27
4	14
0	39
0	43
1	39
2	1
3	20

Margin (mm)	Years the old record stood
22	55
35	86
18	68
21	31
21	29
12	60
14	68
10	86
6	117
13	65
14	74
19	9
19	60
27	53
19	11
13	68
14	44
5	91
10	45
15	29
5	86
2	104
16	39
33	6
22	6
9	50
6	52
18	36
26	12
10	74
12	36
9	45
1	123
1	115
19	6
13	57
11	44
13	20
26	12
10	39
12	20
6	54
7	19
10	35
8	53
17	16
4	74
15	10
13	30
10	40
5	60
1	86
5	65
9	44
12	43
11	36
10	37
10	45
3	82
4	68
12	17
12	20
16	17
11	20
4	39
9	47
8	29
9	45
19	16
3	61
8	43
13	43
3	68
7	26
7	29
5	39
8	30
13	36
9	36
4	46
8	29
6	40
11	11
5	47
11	19
2	65
4	55
13	13
4	53
6	37
12	10
2	60
4	52
1	65
7	43
15	11
10	9
5	35
4	49
3	59
7	20
6	17
9	11
4	50
9	18
4	35
3	48
3	48
0	68
6	39
6	39
13	27
3	50
5	43
6	30
3	43
13	17
4	36
5	36
3	50
4	32
4	39
4	39
5	35
4	36
8	11
12	8
5	32
3	46
1	57
1	50
2	48
3	39
3	27
2	39
6	20
2	44
2	19
4	29
3	39
9	20
3	45
0	54
3	39
9	12
1	53
6	9
7	20
4	39
3	39
8	36
5	30
3	29
13	7
3	36
6	11
2	39
6	17
13	6
6	26
1	46
1	49
1	49
9	16
15	16
5	30
1	43
0	44
5	11
7	11
7	11
1	19
1	46
2	46
4	21
6	9
2	43
2	29
7	20
7	16
0	32
2	39
3	21
5	8
5	11
3	21
1	40
6	11
5	11
7	11
6	11
5	12
3	27
6	27
4	14
0	39
0	43
1	39
2	1
3	20