Extreme rain in United States, 9 to 14 October 2020

Name: Extreme rain in United States, 9 to 14 October 2020
Start: 2020-10-09
End: 2020-10-14
Location: United States

Extreme rain in United States, 9 to 14 October 2020: 270 records at 212 stations, peak on 10 October 2020. Closed.

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

Key Facts

Extreme rain in United States, 9 to 14 October 2020 set or tied 270 station records at 212 stations.
It ran from 9 October 2020 to 14 October 2020 (6 days) and its peak day was 10 October 2020.
Status: closed.
Winthrop 1 WSW set a daily record precipitation of 33.5 mm (1.3 in) on 13 October 2020.
The busiest day was 10 October 2020 with 84 records.
The oldest broken record in the ranked list had stood for 112 years.

Footprint

9 to 14 October 2020

The area covered by Extreme rain in United States, 9 to 14 October 2020 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Extreme rain in United States, 9 to 14 October 2020: stations that set records in the event
Station	Type	Value	Date
Winthrop 1 WSW	Record daily precipitation	33.5 mm (1.3 in)	2020-10-13
Trout Creek Rs	Record daily precipitation	46.2 mm (1.8 in)	2020-10-13
Fisher Creek	Record daily precipitation	43.2 mm (1.7 in)	2020-10-13
White Mill	Record daily precipitation	40.6 mm (1.6 in)	2020-10-13
Wallace	Record daily precipitation	41.1 mm (1.6 in)	2020-10-11
Copper Bottom	Record daily precipitation	40.6 mm (1.6 in)	2020-10-13
Upper Wheeler	Record daily precipitation	40.6 mm (1.6 in)	2020-10-11
Monroe	Record daily precipitation	53.3 mm (2.1 in)	2020-10-10
Bayview Model Basin	Record daily precipitation	30.5 mm (1.2 in)	2020-10-12
Cascade Locks	Record daily precipitation	50.5 mm (2.0 in)	2020-10-12
Blaine	Record daily precipitation	31.8 mm (1.3 in)	2020-10-09
Jump Off Joe	Record daily precipitation	86.4 mm (3.4 in)	2020-10-10
Nehalem 9 NE	Record daily precipitation	109.2 mm (4.3 in)	2020-10-12
Stampede Pass	Record daily precipitation	77.7 mm (3.1 in)	2020-10-13
Chief Joseph Dam	Record daily precipitation	15.0 mm (0.6 in)	2020-10-11
Old Faithful	Record daily precipitation	20.6 mm (0.8 in)	2020-10-11
Colville	Record daily precipitation	14.5 mm (0.6 in)	2020-10-12
Odessa	Record daily precipitation	14.5 mm (0.6 in)	2020-10-12
Hamilton	Record daily precipitation	18.5 mm (0.7 in)	2020-10-14

Records per Day

Peak day 84

Records set or tied each day from 9 October 2020 to 14 October 2020. The most in one day was 84 on 10 October 2020.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 9 to 14 October 2020 ranked by margin
Nehalem 9 NE, 10-12	65.0 mm (2.6 in)
Jump Off Joe, 10-10	45.8 mm (1.8 in)
Trout Creek Rs, 10-13	35.8 mm (1.4 in)
Upper Wheeler, 10-11	33.0 mm (1.3 in)
Stampede Pass, 10-13	29.7 mm (1.2 in)
Fisher Creek, 10-13	28.0 mm (1.1 in)
White Mill, 10-13	27.9 mm (1.1 in)
Copper Bottom, 10-13	25.4 mm (1.0 in)
Winthrop 1 WSW, 10-13	24.9 mm (1.0 in)
Wallace, 10-11	16.7 mm (0.7 in)
Winthrop 1 WSW, 10-12	13.7 mm (0.5 in)
Monroe, 10-10	13.2 mm (0.5 in)
Cascade Locks, 10-12	11.6 mm (0.5 in)
Hamilton, 10-14	10.1 mm (0.4 in)
Bayview Model Basin, 10-12	9.9 mm (0.39 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

270 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 United States, 9 to 14 October 2020
Margin (mm)	Years the old record stood
25	58
10	112
36	49
28	36
28	36
17	78
14	58
25	28
8	109
33	25
9	58
9	61
5	86
10	69
12	88
13	67
7	80
65	17
46	19
30	53
7	59
25	31
6	85
11	60
7	50
15	25
46	36
9	58
19	59
13	23
15	20
16	4
0	88
23	30
17	12
10	40
13	23
20	25
6	58
23	25
15	17
18	27
12	61
4	61
20	31
10	36
8	3
15	37
11	30
7	53
33	23
48	25
24	47
12	24
10	20
13	39
13	35
25	4
2	58
2	52
2	53
3	52
13	4
23	9
13	30
13	9
18	10
6	48
7	59
1	58
10	28
13	39
15	9
33	4
28	4
38	9
6	19
3	52
7	52
10	39
5	37
13	25
2	49
6	36
1	48
22	32
21	36
13	4
10	35
8	19
8	36
28	9
8	28
5	40
18	30
13	25
20	25
13	25
1	48
5	20
10	9
18	25
5	37
13	9
13	16
20	4
23	25
48	9
15	19
3	19
5	19
6	36
9	25
10	20
5	36
8	23
20	6
18	19
5	3
3	20
3	39
5	30
3	40
18	8
10	28
8	17
3	37
10	19
5	36
3	39
3	39
13	20
13	19
5	39
5	39
1	36
11	4
3	37
5	28
8	24
3	39
10	4
20	4
13	9
20	9
15	25
10	19
15	25
23	9
3	4
2	26
10	19
12	6
4	30
0	25
3	34
5	23
3	36
3	28
3	39
15	4
5	36
3	39
15	9
13	25
13	25
5	36
18	5
13	23
8	25
15	25
3	39
12	4
14	17
6	7
3	32
3	28
3	36
8	20
10	9
3	36
10	9
10	19
10	25
20	9
3	36
3	36
1	17
2	27
1	31
3	28
3	20
3	30
10	9
3	36
13	4
3	36
10	9
10	9
3	19

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 9 to 14 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 United States, 9 to 14 October 2020 (this event)	270 records

Every Record Set

20 of 270

Every record set or tied during Extreme rain in United States, 9 to 14 October 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-10-09	Blaine	Record daily precipitation	31.8 mm (1.3 in)	7.4 mm (0.29 in)	80	42 of 100 (Notable)
2020-10-10	Monroe	Record daily precipitation	53.3 mm (2.1 in)	13.2 mm (0.5 in)	67	44 of 100 (Notable)
2020-10-10	Jump Off Joe	Record daily precipitation	86.4 mm (3.4 in)	45.8 mm (1.8 in)	19	41 of 100 (Notable)
2020-10-11	Wallace	Record daily precipitation	41.1 mm (1.6 in)	16.7 mm (0.7 in)	78	53 of 100 (Notable)
2020-10-11	Upper Wheeler	Record daily precipitation	40.6 mm (1.6 in)	33.0 mm (1.3 in)	25	47 of 100 (Notable)
2020-10-11	Chief Joseph Dam	Record daily precipitation	15.0 mm (0.6 in)	8.6 mm (0.34 in)	61	20 of 100 (Routine)
2020-10-11	Old Faithful	Record daily precipitation	20.6 mm (0.8 in)	7.9 mm (0.31 in)	109	20 of 100 (Routine)
2020-10-12	Bayview Model Basin	Record daily precipitation	30.5 mm (1.2 in)	9.9 mm (0.39 in)	69	44 of 100 (Notable)
2020-10-12	Cascade Locks	Record daily precipitation	50.5 mm (2.0 in)	11.6 mm (0.5 in)	88	44 of 100 (Notable)
2020-10-12	Nehalem 9 NE	Record daily precipitation	109.2 mm (4.3 in)	65.0 mm (2.6 in)	17	41 of 100 (Notable)
2020-10-12	Colville	Record daily precipitation	14.5 mm (0.6 in)	5.4 mm (0.21 in)	86	20 of 100 (Routine)
2020-10-12	Odessa	Record daily precipitation	14.5 mm (0.6 in)	8.7 mm (0.34 in)	58	20 of 100 (Routine)
2020-10-12	Winthrop 1 WSW	Record daily precipitation	18.8 mm (0.7 in)	13.7 mm (0.5 in)	58	20 of 100 (Routine)
2020-10-13	Winthrop 1 WSW	Record daily precipitation	33.5 mm (1.3 in)	24.9 mm (1.0 in)	58	67 of 100 (Major)
2020-10-13	Trout Creek Rs	Record daily precipitation	46.2 mm (1.8 in)	35.8 mm (1.4 in)	49	60 of 100 (Major)
2020-10-13	Fisher Creek	Record daily precipitation	43.2 mm (1.7 in)	28.0 mm (1.1 in)	36	54 of 100 (Notable)
2020-10-13	White Mill	Record daily precipitation	40.6 mm (1.6 in)	27.9 mm (1.1 in)	36	54 of 100 (Notable)
2020-10-13	Copper Bottom	Record daily precipitation	40.6 mm (1.6 in)	25.4 mm (1.0 in)	28	52 of 100 (Notable)
2020-10-13	Stampede Pass	Record daily precipitation	77.7 mm (3.1 in)	29.7 mm (1.2 in)	53	41 of 100 (Notable)
2020-10-14	Hamilton	Record daily precipitation	18.5 mm (0.7 in)	10.1 mm (0.4 in)	112	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 270 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
25	58
10	112
36	49
28	36
28	36
17	78
14	58
25	28
8	109
33	25
9	58
9	61
5	86
10	69
12	88
13	67
7	80
65	17
46	19
30	53
7	59
25	31
6	85
11	60
7	50
15	25
46	36
9	58
19	59
13	23
15	20
16	4
0	88
23	30
17	12
10	40
13	23
20	25
6	58
23	25
15	17
18	27
12	61
4	61
20	31
10	36
8	3
15	37
11	30
7	53
33	23
48	25
24	47
12	24
10	20
13	39
13	35
25	4
2	58
2	52
2	53
3	52
13	4
23	9
13	30
13	9
18	10
6	48
7	59
1	58
10	28
13	39
15	9
33	4
28	4
38	9
6	19
3	52
7	52
10	39
5	37
13	25
2	49
6	36
1	48
22	32
21	36
13	4
10	35
8	19
8	36
28	9
8	28
5	40
18	30
13	25
20	25
13	25
1	48
5	20
10	9
18	25
5	37
13	9
13	16
20	4
23	25
48	9
15	19
3	19
5	19
6	36
9	25
10	20
5	36
8	23
20	6
18	19
5	3
3	20
3	39
5	30
3	40
18	8
10	28
8	17
3	37
10	19
5	36
3	39
3	39
13	20
13	19
5	39
5	39
1	36
11	4
3	37
5	28
8	24
3	39
10	4
20	4
13	9
20	9
15	25
10	19
15	25
23	9
3	4
2	26
10	19
12	6
4	30
0	25
3	34
5	23
3	36
3	28
3	39
15	4
5	36
3	39
15	9
13	25
13	25
5	36
18	5
13	23
8	25
15	25
3	39
12	4
14	17
6	7
3	32
3	28
3	36
8	20
10	9
3	36
10	9
10	19
10	25
20	9
3	36
3	36
1	17
2	27
1	31
3	28
3	20
3	30
10	9
3	36
13	4
3	36
10	9
10	9
3	19

Margin (mm)	Years the old record stood
25	58
10	112
36	49
28	36
28	36
17	78
14	58
25	28
8	109
33	25
9	58
9	61
5	86
10	69
12	88
13	67
7	80
65	17
46	19
30	53
7	59
25	31
6	85
11	60
7	50
15	25
46	36
9	58
19	59
13	23
15	20
16	4
0	88
23	30
17	12
10	40
13	23
20	25
6	58
23	25
15	17
18	27
12	61
4	61
20	31
10	36
8	3
15	37
11	30
7	53
33	23
48	25
24	47
12	24
10	20
13	39
13	35
25	4
2	58
2	52
2	53
3	52
13	4
23	9
13	30
13	9
18	10
6	48
7	59
1	58
10	28
13	39
15	9
33	4
28	4
38	9
6	19
3	52
7	52
10	39
5	37
13	25
2	49
6	36
1	48
22	32
21	36
13	4
10	35
8	19
8	36
28	9
8	28
5	40
18	30
13	25
20	25
13	25
1	48
5	20
10	9
18	25
5	37
13	9
13	16
20	4
23	25
48	9
15	19
3	19
5	19
6	36
9	25
10	20
5	36
8	23
20	6
18	19
5	3
3	20
3	39
5	30
3	40
18	8
10	28
8	17
3	37
10	19
5	36
3	39
3	39
13	20
13	19
5	39
5	39
1	36
11	4
3	37
5	28
8	24
3	39
10	4
20	4
13	9
20	9
15	25
10	19
15	25
23	9
3	4
2	26
10	19
12	6
4	30
0	25
3	34
5	23
3	36
3	28
3	39
15	4
5	36
3	39
15	9
13	25
13	25
5	36
18	5
13	23
8	25
15	25
3	39
12	4
14	17
6	7
3	32
3	28
3	36
8	20
10	9
3	36
10	9
10	19
10	25
20	9
3	36
3	36
1	17
2	27
1	31
3	28
3	20
3	30
10	9
3	36
13	4
3	36
10	9
10	9
3	19

Margin (mm)	Years the old record stood
25	58
10	112
36	49
28	36
28	36
17	78
14	58
25	28
8	109
33	25
9	58
9	61
5	86
10	69
12	88
13	67
7	80
65	17
46	19
30	53
7	59
25	31
6	85
11	60
7	50
15	25
46	36
9	58
19	59
13	23
15	20
16	4
0	88
23	30
17	12
10	40
13	23
20	25
6	58
23	25
15	17
18	27
12	61
4	61
20	31
10	36
8	3
15	37
11	30
7	53
33	23
48	25
24	47
12	24
10	20
13	39
13	35
25	4
2	58
2	52
2	53
3	52
13	4
23	9
13	30
13	9
18	10
6	48
7	59
1	58
10	28
13	39
15	9
33	4
28	4
38	9
6	19
3	52
7	52
10	39
5	37
13	25
2	49
6	36
1	48
22	32
21	36
13	4
10	35
8	19
8	36
28	9
8	28
5	40
18	30
13	25
20	25
13	25
1	48
5	20
10	9
18	25
5	37
13	9
13	16
20	4
23	25
48	9
15	19
3	19
5	19
6	36
9	25
10	20
5	36
8	23
20	6
18	19
5	3
3	20
3	39
5	30
3	40
18	8
10	28
8	17
3	37
10	19
5	36
3	39
3	39
13	20
13	19
5	39
5	39
1	36
11	4
3	37
5	28
8	24
3	39
10	4
20	4
13	9
20	9
15	25
10	19
15	25
23	9
3	4
2	26
10	19
12	6
4	30
0	25
3	34
5	23
3	36
3	28
3	39
15	4
5	36
3	39
15	9
13	25
13	25
5	36
18	5
13	23
8	25
15	25
3	39
12	4
14	17
6	7
3	32
3	28
3	36
8	20
10	9
3	36
10	9
10	19
10	25
20	9
3	36
3	36
1	17
2	27
1	31
3	28
3	20
3	30
10	9
3	36
13	4
3	36
10	9
10	9
3	19