Extreme rain in United States, 31 January to 9 February 2021

Name: Extreme rain in United States, 31 January to 9 February 2021
Start: 2021-01-31
End: 2021-02-09
Location: United States

Extreme rain in United States, 31 January to 9 February 2021: 188 records at 167 stations, peak on 5 February 2021. Closed.

Data as of 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Key Facts

Extreme rain in United States, 31 January to 9 February 2021 set or tied 188 station records at 167 stations.
It ran from 31 January 2021 to 9 February 2021 (10 days) and its peak day was 5 February 2021.
Status: closed.
Clearbrook set a daily record precipitation of 51.3 mm (2.0 in) on 1 February 2021.
The busiest day was 5 February 2021 with 70 records.
The oldest broken record in the ranked list had stood for 112 years.

Footprint

31 January to 9 February 2021

The area covered by Extreme rain in United States, 31 January to 9 February 2021 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, 31 January to 9 February 2021: stations that set records in the event
Station	Type	Value	Date
Clearbrook	Record daily precipitation	51.3 mm (2.0 in)	2021-02-01
Sedro-Woolley	Record daily precipitation	49.0 mm (1.9 in)	2021-02-01
Lubrecht Flume	Record daily precipitation	25.4 mm (1.0 in)	2021-02-06
Silver Creek Falls	Record daily precipitation	89.7 mm (3.5 in)	2021-02-02
Barker Lakes	Record daily precipitation	30.5 mm (1.2 in)	2021-02-07
Millegan 14 SE	Record daily precipitation	25.4 mm (1.0 in)	2021-02-04
Republic	Record daily precipitation	20.3 mm (0.8 in)	2021-02-01
Trident	Record daily precipitation	8.6 mm (0.34 in)	2021-02-03
Big Timber	Record daily precipitation	13.0 mm (0.5 in)	2021-02-06
Billings Wtp	Record daily precipitation	12.7 mm (0.5 in)	2021-02-06
Columbus	Record daily precipitation	14.0 mm (0.6 in)	2021-02-06
Galata 16 SW	Record daily precipitation	13.7 mm (0.5 in)	2021-02-06
Yellowtail Dam	Record daily precipitation	21.3 mm (0.8 in)	2021-02-06
Burgess Junction	Record daily precipitation	22.9 mm (0.9 in)	2021-02-06
Billings Intl AP	Record daily precipitation	9.4 mm (0.37 in)	2021-02-06
Norris Madison Pwr House	Record daily precipitation	15.2 mm (0.6 in)	2021-02-07
Fairfield	Record daily precipitation	10.7 mm (0.4 in)	2021-02-08
Stevensville	Record daily precipitation	21.8 mm (0.9 in)	2021-02-08
Deer Lodge 3 W	Record daily precipitation	20.3 mm (0.8 in)	2021-02-09

Records per Day

Peak day 70

Records set or tied each day from 31 January 2021 to 9 February 2021. The most in one day was 70 on 5 February 2021.

Records per day during Extreme rain in United States, 31 January to 9 February 2021
Date	Records
2021-01-31	3
2021-02-01	10
2021-02-02	12
2021-02-03	13
2021-02-04	8
2021-02-05	70
2021-02-06	48
2021-02-07	16
2021-02-08	7
2021-02-09	1

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 31 January to 9 February 2021 ranked by margin
Silver Creek Falls, 02-02	50.3 mm (2.0 in)
Clearbrook, 02-01	18.3 mm (0.7 in)
Yellowtail Dam, 02-06	16.2 mm (0.6 in)
Barker Lakes, 02-07	15.3 mm (0.6 in)
Sedro-Woolley, 02-01	15.0 mm (0.6 in)
Burgess Junction, 02-06	14.3 mm (0.6 in)
Deer Lodge 3 W, 02-09	13.7 mm (0.5 in)
Columbus, 02-06	11.7 mm (0.5 in)
Stevensville, 02-08	10.9 mm (0.4 in)
Norris Madison Pwr House, 02-07	8.6 mm (0.34 in)
Millegan 14 SE, 02-04	7.9 mm (0.31 in)
Fairfield, 02-08	7.9 mm (0.31 in)
Lubrecht Flume, 02-06	7.6 mm (0.30 in)
Galata 16 SW, 02-06	6.8 mm (0.27 in)
Billings Wtp, 02-06	6.6 mm (0.26 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

188 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, 31 January to 9 February 2021
Margin (mm)	Years the old record stood
12	63
7	88
18	94
16	35
15	91
9	62
6	112
5	88
6	46
11	25
14	10
8	34
14	7
50	31
15	22
8	3
5	62
4	62
7	35
8	8
15	1
8	31
1	97
8	41
15	21
15	1
9	3
7	1
34	34
5	38
23	10
4	46
3	41
8	18
8	25
5	20
5	3
5	42
3	1
2	69
10	39
1	55
7	2
4	10
1	62
7	21
4	4
4	3
1	60
2	43
8	17
2	58
2	59
4	33
0	62
5	38
18	7
5	25
15	2
2	48
1	60
6	4
4	35
4	20
8	39
10	39
13	42
3	33
1	61
0	63
0	52
2	1
10	25
13	15
25	10
7	18
8	32
13	3
8	25
2	35
1	58
1	50
18	10
10	25
5	20
9	22
15	26
9	36
2	47
1	54
9	41
5	35
8	4
5	32
5	32
15	11
4	22
18	30
3	20
8	21
0	35
2	43
2	53
3	35
5	41
5	20
5	20
9	22
1	33
1	3
10	15
3	36
10	2
10	1
5	25
2	10
3	25
1	22
5	10
5	1
8	3
3	35
15	15
2	4
5	25
3	36
5	2
8	22
8	25
6	3
3	25
3	25
5	1
3	25
3	20
5	25
2	3
0	32
3	19
5	3
8	2
5	20
1	20
3	25
3	25
3	22
3	25
6	1
2	10
5	4
3	20
5	2
3	22
3	22
2	6
2	3
1	14
8	2
3	25
3	15
5	2
3	22
3	21
3	25
2	21
1	3
3	4
3	22
5	1
1	4
2	2
1	3
3	4
3	4
3	4
3	3
4	3
0	22
3	7
5	3
1	7
3	13
1	13
1	2
3	2
3	2
3	2
3	1

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 31 January to 9 February 2021 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, 31 January to 9 February 2021 (this event)	188 records

Every Record Set

20 of 188

Every record set or tied during Extreme rain in United States, 31 January to 9 February 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-02-01	Clearbrook	Record daily precipitation	51.3 mm (2.0 in)	18.3 mm (0.7 in)	94	58 of 100 (Notable)
2021-02-01	Sedro-Woolley	Record daily precipitation	49.0 mm (1.9 in)	15.0 mm (0.6 in)	91	55 of 100 (Notable)
2021-02-01	Republic	Record daily precipitation	20.3 mm (0.8 in)	5.6 mm (0.22 in)	112	20 of 100 (Routine)
2021-02-02	Silver Creek Falls	Record daily precipitation	89.7 mm (3.5 in)	50.3 mm (2.0 in)	31	48 of 100 (Notable)
2021-02-03	Trident	Record daily precipitation	8.6 mm (0.34 in)	6.1 mm (0.24 in)	46	20 of 100 (Routine)
2021-02-04	Millegan 14 SE	Record daily precipitation	25.4 mm (1.0 in)	7.9 mm (0.31 in)	8	42 of 100 (Notable)
2021-02-06	Lubrecht Flume	Record daily precipitation	25.4 mm (1.0 in)	7.6 mm (0.30 in)	34	49 of 100 (Notable)
2021-02-06	Big Timber	Record daily precipitation	13.0 mm (0.5 in)	5.4 mm (0.21 in)	88	20 of 100 (Routine)
2021-02-06	Billings Wtp	Record daily precipitation	12.7 mm (0.5 in)	6.6 mm (0.26 in)	88	20 of 100 (Routine)
2021-02-06	Columbus	Record daily precipitation	14.0 mm (0.6 in)	11.7 mm (0.5 in)	63	20 of 100 (Routine)
2021-02-06	Galata 16 SW	Record daily precipitation	13.7 mm (0.5 in)	6.8 mm (0.27 in)	35	20 of 100 (Routine)
2021-02-06	Yellowtail Dam	Record daily precipitation	21.3 mm (0.8 in)	16.2 mm (0.6 in)	35	20 of 100 (Routine)
2021-02-06	Burgess Junction	Record daily precipitation	22.9 mm (0.9 in)	14.3 mm (0.6 in)	10	20 of 100 (Routine)
2021-02-06	Billings Intl AP	Record daily precipitation	9.4 mm (0.37 in)	4.8 mm (0.19 in)	62	20 of 100 (Routine)
2021-02-07	Barker Lakes	Record daily precipitation	30.5 mm (1.2 in)	15.3 mm (0.6 in)	22	47 of 100 (Notable)
2021-02-07	Billings Wtp	Record daily precipitation	10.2 mm (0.4 in)	3.8 mm (0.15 in)	62	20 of 100 (Routine)
2021-02-07	Norris Madison Pwr House	Record daily precipitation	15.2 mm (0.6 in)	8.6 mm (0.34 in)	62	20 of 100 (Routine)
2021-02-08	Fairfield	Record daily precipitation	10.7 mm (0.4 in)	7.9 mm (0.31 in)	3	20 of 100 (Routine)
2021-02-08	Stevensville	Record daily precipitation	21.8 mm (0.9 in)	10.9 mm (0.4 in)	25	20 of 100 (Routine)
2021-02-09	Deer Lodge 3 W	Record daily precipitation	20.3 mm (0.8 in)	13.7 mm (0.5 in)	7	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 188 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 2026-10-18. 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
12	63
7	88
18	94
16	35
15	91
9	62
6	112
5	88
6	46
11	25
14	10
8	34
14	7
50	31
15	22
8	3
5	62
4	62
7	35
8	8
15	1
8	31
1	97
8	41
15	21
15	1
9	3
7	1
34	34
5	38
23	10
4	46
3	41
8	18
8	25
5	20
5	3
5	42
3	1
2	69
10	39
1	55
7	2
4	10
1	62
7	21
4	4
4	3
1	60
2	43
8	17
2	58
2	59
4	33
0	62
5	38
18	7
5	25
15	2
2	48
1	60
6	4
4	35
4	20
8	39
10	39
13	42
3	33
1	61
0	63
0	52
2	1
10	25
13	15
25	10
7	18
8	32
13	3
8	25
2	35
1	58
1	50
18	10
10	25
5	20
9	22
15	26
9	36
2	47
1	54
9	41
5	35
8	4
5	32
5	32
15	11
4	22
18	30
3	20
8	21
0	35
2	43
2	53
3	35
5	41
5	20
5	20
9	22
1	33
1	3
10	15
3	36
10	2
10	1
5	25
2	10
3	25
1	22
5	10
5	1
8	3
3	35
15	15
2	4
5	25
3	36
5	2
8	22
8	25
6	3
3	25
3	25
5	1
3	25
3	20
5	25
2	3
0	32
3	19
5	3
8	2
5	20
1	20
3	25
3	25
3	22
3	25
6	1
2	10
5	4
3	20
5	2
3	22
3	22
2	6
2	3
1	14
8	2
3	25
3	15
5	2
3	22
3	21
3	25
2	21
1	3
3	4
3	22
5	1
1	4
2	2
1	3
3	4
3	4
3	4
3	3
4	3
0	22
3	7
5	3
1	7
3	13
1	13
1	2
3	2
3	2
3	2
3	1

Margin (mm)	Years the old record stood
12	63
7	88
18	94
16	35
15	91
9	62
6	112
5	88
6	46
11	25
14	10
8	34
14	7
50	31
15	22
8	3
5	62
4	62
7	35
8	8
15	1
8	31
1	97
8	41
15	21
15	1
9	3
7	1
34	34
5	38
23	10
4	46
3	41
8	18
8	25
5	20
5	3
5	42
3	1
2	69
10	39
1	55
7	2
4	10
1	62
7	21
4	4
4	3
1	60
2	43
8	17
2	58
2	59
4	33
0	62
5	38
18	7
5	25
15	2
2	48
1	60
6	4
4	35
4	20
8	39
10	39
13	42
3	33
1	61
0	63
0	52
2	1
10	25
13	15
25	10
7	18
8	32
13	3
8	25
2	35
1	58
1	50
18	10
10	25
5	20
9	22
15	26
9	36
2	47
1	54
9	41
5	35
8	4
5	32
5	32
15	11
4	22
18	30
3	20
8	21
0	35
2	43
2	53
3	35
5	41
5	20
5	20
9	22
1	33
1	3
10	15
3	36
10	2
10	1
5	25
2	10
3	25
1	22
5	10
5	1
8	3
3	35
15	15
2	4
5	25
3	36
5	2
8	22
8	25
6	3
3	25
3	25
5	1
3	25
3	20
5	25
2	3
0	32
3	19
5	3
8	2
5	20
1	20
3	25
3	25
3	22
3	25
6	1
2	10
5	4
3	20
5	2
3	22
3	22
2	6
2	3
1	14
8	2
3	25
3	15
5	2
3	22
3	21
3	25
2	21
1	3
3	4
3	22
5	1
1	4
2	2
1	3
3	4
3	4
3	4
3	3
4	3
0	22
3	7
5	3
1	7
3	13
1	13
1	2
3	2
3	2
3	2
3	1

Margin (mm)	Years the old record stood
12	63
7	88
18	94
16	35
15	91
9	62
6	112
5	88
6	46
11	25
14	10
8	34
14	7
50	31
15	22
8	3
5	62
4	62
7	35
8	8
15	1
8	31
1	97
8	41
15	21
15	1
9	3
7	1
34	34
5	38
23	10
4	46
3	41
8	18
8	25
5	20
5	3
5	42
3	1
2	69
10	39
1	55
7	2
4	10
1	62
7	21
4	4
4	3
1	60
2	43
8	17
2	58
2	59
4	33
0	62
5	38
18	7
5	25
15	2
2	48
1	60
6	4
4	35
4	20
8	39
10	39
13	42
3	33
1	61
0	63
0	52
2	1
10	25
13	15
25	10
7	18
8	32
13	3
8	25
2	35
1	58
1	50
18	10
10	25
5	20
9	22
15	26
9	36
2	47
1	54
9	41
5	35
8	4
5	32
5	32
15	11
4	22
18	30
3	20
8	21
0	35
2	43
2	53
3	35
5	41
5	20
5	20
9	22
1	33
1	3
10	15
3	36
10	2
10	1
5	25
2	10
3	25
1	22
5	10
5	1
8	3
3	35
15	15
2	4
5	25
3	36
5	2
8	22
8	25
6	3
3	25
3	25
5	1
3	25
3	20
5	25
2	3
0	32
3	19
5	3
8	2
5	20
1	20
3	25
3	25
3	22
3	25
6	1
2	10
5	4
3	20
5	2
3	22
3	22
2	6
2	3
1	14
8	2
3	25
3	15
5	2
3	22
3	21
3	25
2	21
1	3
3	4
3	22
5	1
1	4
2	2
1	3
3	4
3	4
3	4
3	3
4	3
0	22
3	7
5	3
1	7
3	13
1	13
1	2
3	2
3	2
3	2
3	1