Extreme rain in United States, 29 March to 4 April 2020

Name: Extreme rain in United States, 29 March to 4 April 2020
Start: 2020-03-29
End: 2020-04-04
Location: United States

Extreme rain in United States, 29 March to 4 April 2020: 193 records at 189 stations, peak on 31 March 2020. Closed.

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

Key Facts

Extreme rain in United States, 29 March to 4 April 2020 set or tied 193 station records at 189 stations.
It ran from 29 March 2020 to 4 April 2020 (7 days) and its peak day was 31 March 2020.
Status: closed.
Grand Forks UNIV (NWS) set a daily record precipitation of 34.8 mm (1.4 in) on 2 April 2020.
The busiest day was 31 March 2020 with 95 records.
The oldest broken record in the ranked list had stood for 125 years.

Footprint

29 March to 4 April 2020

The area covered by Extreme rain in United States, 29 March to 4 April 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 United States, 29 March to 4 April 2020: stations that set records in the event
Station	Type	Value	Date
Grand Forks UNIV (NWS)	Record daily precipitation	34.8 mm (1.4 in)	2020-04-02
Crookston NW Exp STN	Record daily precipitation	37.1 mm (1.5 in)	2020-04-03
Thorhult	Record daily precipitation	30.5 mm (1.2 in)	2020-04-02
Parker Peak	Record daily precipitation	40.6 mm (1.6 in)	2020-03-31
Vancouver 4 NNE	Record daily precipitation	70.4 mm (2.8 in)	2020-04-02
Two Ocean Plateau	Record daily precipitation	27.9 mm (1.1 in)	2020-03-31
Crater Lake Nps HQ	Record daily precipitation	64.0 mm (2.5 in)	2020-03-31
Mill Creek Summit	Record daily precipitation	27.9 mm (1.1 in)	2020-03-31
Sisseton	Record daily precipitation	25.9 mm (1.0 in)	2020-04-02
Sylvan Lake	Record daily precipitation	30.5 mm (1.2 in)	2020-03-31
Elliston	Record daily precipitation	11.4 mm (0.4 in)	2020-03-31
Livingston 12 S	Record daily precipitation	16.0 mm (0.6 in)	2020-03-31
Grass Range	Record daily precipitation	23.9 mm (0.9 in)	2020-04-01
Minot Exp STN	Record daily precipitation	14.7 mm (0.6 in)	2020-04-01
Sherwood	Record daily precipitation	16.5 mm (0.6 in)	2020-04-01
Lake Yellowstone	Record daily precipitation	18.0 mm (0.7 in)	2020-04-01
Lamar Rs	Record daily precipitation	10.9 mm (0.4 in)	2020-04-01
Watertown Rgnl AP	Record daily precipitation	22.6 mm (0.9 in)	2020-04-01
Victor 4 N	Record daily precipitation	16.0 mm (0.6 in)	2020-04-02
Pembina	Record daily precipitation	17.8 mm (0.7 in)	2020-04-03

Records per Day

Peak day 95

Records set or tied each day from 29 March 2020 to 4 April 2020. The most in one day was 95 on 31 March 2020.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 29 March to 4 April 2020 ranked by margin
Vancouver 4 NNE, 04-02	36.4 mm (1.4 in)
Crater Lake Nps HQ, 03-31	27.2 mm (1.1 in)
Thorhult, 04-02	21.1 mm (0.8 in)
Two Ocean Plateau, 03-31	20.3 mm (0.8 in)
Grand Forks UNIV (NWS), 04-02	19.6 mm (0.8 in)
Sylvan Lake, 03-31	15.3 mm (0.6 in)
Mill Creek Summit, 03-31	15.2 mm (0.6 in)
Crookston NW Exp STN, 04-03	14.2 mm (0.6 in)
Parker Peak, 03-31	12.7 mm (0.5 in)
Grass Range, 04-01	11.5 mm (0.5 in)
Sherwood, 04-01	10.1 mm (0.4 in)
Livingston 12 S, 03-31	9.1 mm (0.36 in)
Victor 4 N, 04-02	8.6 mm (0.34 in)
Sisseton, 04-02	7.9 mm (0.31 in)
Pembina, 04-03	7.6 mm (0.30 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

193 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, 29 March to 4 April 2020
Margin (mm)	Years the old record stood
20	115
14	125
21	70
13	17
36	1
9	62
20	38
3	110
27	37
8	115
15	37
12	63
5	112
8	80
5	122
9	89
6	64
15	24
10	70
6	64
4	74
3	89
19	36
15	31
18	38
15	31
0	115
2	80
5	63
0	94
9	60
8	64
20	31
2	75
25	11
10	3
3	74
1	80
3	64
1	80
7	60
4	64
0	83
8	55
13	21
4	31
8	12
10	31
5	59
3	52
10	31
8	38
3	57
1	73
3	60
1	64
8	31
2	60
9	21
1	67
10	31
23	5
1	70
9	30
1	63
10	16
8	38
10	37
5	39
23	24
8	42
13	37
13	39
0	64
3	46
10	34
4	42
5	38
0	64
10	34
3	42
1	63
5	37
5	38
6	31
8	31
10	39
8	31
10	32
13	18
2	49
5	35
5	39
4	39
4	20
3	31
2	42
8	35
3	31
8	9
5	31
8	11
8	14
10	19
1	46
1	36
6	6
8	11
10	11
2	40
2	44
5	24
3	39
3	41
3	38
8	39
5	31
10	11
3	38
3	38
8	35
8	17
4	31
5	18
7	10
3	12
5	9
5	9
8	11
5	11
10	11
5	11
3	38
15	3
1	37
1	23
1	23
2	26
3	23
3	31
8	21
1	31
4	10
3	10
3	24
5	11
5	14
5	24
5	24
0	17
3	14
4	21
9	8
2	23
8	11
3	24
5	24
3	10
1	21
3	9
3	11
3	17
3	35
3	24
1	10
1	31
2	24
5	9
3	11
3	10
2	18
3	21
3	17
5	11
13	5
3	23
1	11
4	3
3	10
0	2
1	9
3	6
3	6
3	2
3	11
3	17
2	9
1	10
5	8
1	8
3	2
3	5
1	1

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 29 March to 4 April 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, 29 March to 4 April 2020 (this event)	193 records

Every Record Set

20 of 193

Every record set or tied during Extreme rain in United States, 29 March to 4 April 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-03-31	Parker Peak	Record daily precipitation	40.6 mm (1.6 in)	12.7 mm (0.5 in)	17	52 of 100 (Notable)
2020-03-31	Two Ocean Plateau	Record daily precipitation	27.9 mm (1.1 in)	20.3 mm (0.8 in)	38	48 of 100 (Notable)
2020-03-31	Crater Lake Nps HQ	Record daily precipitation	64.0 mm (2.5 in)	27.2 mm (1.1 in)	37	47 of 100 (Notable)
2020-03-31	Mill Creek Summit	Record daily precipitation	27.9 mm (1.1 in)	15.2 mm (0.6 in)	37	47 of 100 (Notable)
2020-03-31	Sylvan Lake	Record daily precipitation	30.5 mm (1.2 in)	15.3 mm (0.6 in)	24	43 of 100 (Notable)
2020-03-31	Elliston	Record daily precipitation	11.4 mm (0.4 in)	2.5 mm (0.10 in)	110	20 of 100 (Routine)
2020-03-31	Livingston 12 S	Record daily precipitation	16.0 mm (0.6 in)	9.1 mm (0.36 in)	62	20 of 100 (Routine)
2020-04-01	Grass Range	Record daily precipitation	23.9 mm (0.9 in)	11.5 mm (0.5 in)	63	20 of 100 (Routine)
2020-04-01	Minot Exp STN	Record daily precipitation	14.7 mm (0.6 in)	4.5 mm (0.18 in)	112	20 of 100 (Routine)
2020-04-01	Sherwood	Record daily precipitation	16.5 mm (0.6 in)	10.1 mm (0.4 in)	70	20 of 100 (Routine)
2020-04-01	Lake Yellowstone	Record daily precipitation	18.0 mm (0.7 in)	5.8 mm (0.23 in)	64	20 of 100 (Routine)
2020-04-01	Lamar Rs	Record daily precipitation	10.9 mm (0.4 in)	5.8 mm (0.23 in)	64	20 of 100 (Routine)
2020-04-01	Watertown Rgnl AP	Record daily precipitation	22.6 mm (0.9 in)	4.8 mm (0.19 in)	122	20 of 100 (Routine)
2020-04-02	Grand Forks UNIV (NWS)	Record daily precipitation	34.8 mm (1.4 in)	19.6 mm (0.8 in)	115	66 of 100 (Major)
2020-04-02	Thorhult	Record daily precipitation	30.5 mm (1.2 in)	21.1 mm (0.8 in)	70	54 of 100 (Notable)
2020-04-02	Vancouver 4 NNE	Record daily precipitation	70.4 mm (2.8 in)	36.4 mm (1.4 in)	1	50 of 100 (Notable)
2020-04-02	Sisseton	Record daily precipitation	25.9 mm (1.0 in)	7.9 mm (0.31 in)	115	47 of 100 (Notable)
2020-04-02	Victor 4 N	Record daily precipitation	16.0 mm (0.6 in)	8.6 mm (0.34 in)	89	20 of 100 (Routine)
2020-04-03	Crookston NW Exp STN	Record daily precipitation	37.1 mm (1.5 in)	14.2 mm (0.6 in)	125	60 of 100 (Major)
2020-04-03	Pembina	Record daily precipitation	17.8 mm (0.7 in)	7.6 mm (0.30 in)	80	20 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 193 records the event counts. The counts above use the full total.

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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.

Date	Records
2020-03-29	1
2020-03-30	17
2020-03-31	95
2020-04-01	35
2020-04-02	33
2020-04-03	11
2020-04-04	1

Margin (mm)	Years the old record stood
20	115
14	125
21	70
13	17
36	1
9	62
20	38
3	110
27	37
8	115
15	37
12	63
5	112
8	80
5	122
9	89
6	64
15	24
10	70
6	64
4	74
3	89
19	36
15	31
18	38
15	31
0	115
2	80
5	63
0	94
9	60
8	64
20	31
2	75
25	11
10	3
3	74
1	80
3	64
1	80
7	60
4	64
0	83
8	55
13	21
4	31
8	12
10	31
5	59
3	52
10	31
8	38
3	57
1	73
3	60
1	64
8	31
2	60
9	21
1	67
10	31
23	5
1	70
9	30
1	63
10	16
8	38
10	37
5	39
23	24
8	42
13	37
13	39
0	64
3	46
10	34
4	42
5	38
0	64
10	34
3	42
1	63
5	37
5	38
6	31
8	31
10	39
8	31
10	32
13	18
2	49
5	35
5	39
4	39
4	20
3	31
2	42
8	35
3	31
8	9
5	31
8	11
8	14
10	19
1	46
1	36
6	6
8	11
10	11
2	40
2	44
5	24
3	39
3	41
3	38
8	39
5	31
10	11
3	38
3	38
8	35
8	17
4	31
5	18
7	10
3	12
5	9
5	9
8	11
5	11
10	11
5	11
3	38
15	3
1	37
1	23
1	23
2	26
3	23
3	31
8	21
1	31
4	10
3	10
3	24
5	11
5	14
5	24
5	24
0	17
3	14
4	21
9	8
2	23
8	11
3	24
5	24
3	10
1	21
3	9
3	11
3	17
3	35
3	24
1	10
1	31
2	24
5	9
3	11
3	10
2	18
3	21
3	17
5	11
13	5
3	23
1	11
4	3
3	10
0	2
1	9
3	6
3	6
3	2
3	11
3	17
2	9
1	10
5	8
1	8
3	2
3	5
1	1

Margin (mm)	Years the old record stood
20	115
14	125
21	70
13	17
36	1
9	62
20	38
3	110
27	37
8	115
15	37
12	63
5	112
8	80
5	122
9	89
6	64
15	24
10	70
6	64
4	74
3	89
19	36
15	31
18	38
15	31
0	115
2	80
5	63
0	94
9	60
8	64
20	31
2	75
25	11
10	3
3	74
1	80
3	64
1	80
7	60
4	64
0	83
8	55
13	21
4	31
8	12
10	31
5	59
3	52
10	31
8	38
3	57
1	73
3	60
1	64
8	31
2	60
9	21
1	67
10	31
23	5
1	70
9	30
1	63
10	16
8	38
10	37
5	39
23	24
8	42
13	37
13	39
0	64
3	46
10	34
4	42
5	38
0	64
10	34
3	42
1	63
5	37
5	38
6	31
8	31
10	39
8	31
10	32
13	18
2	49
5	35
5	39
4	39
4	20
3	31
2	42
8	35
3	31
8	9
5	31
8	11
8	14
10	19
1	46
1	36
6	6
8	11
10	11
2	40
2	44
5	24
3	39
3	41
3	38
8	39
5	31
10	11
3	38
3	38
8	35
8	17
4	31
5	18
7	10
3	12
5	9
5	9
8	11
5	11
10	11
5	11
3	38
15	3
1	37
1	23
1	23
2	26
3	23
3	31
8	21
1	31
4	10
3	10
3	24
5	11
5	14
5	24
5	24
0	17
3	14
4	21
9	8
2	23
8	11
3	24
5	24
3	10
1	21
3	9
3	11
3	17
3	35
3	24
1	10
1	31
2	24
5	9
3	11
3	10
2	18
3	21
3	17
5	11
13	5
3	23
1	11
4	3
3	10
0	2
1	9
3	6
3	6
3	2
3	11
3	17
2	9
1	10
5	8
1	8
3	2
3	5
1	1

Margin (mm)	Years the old record stood
20	115
14	125
21	70
13	17
36	1
9	62
20	38
3	110
27	37
8	115
15	37
12	63
5	112
8	80
5	122
9	89
6	64
15	24
10	70
6	64
4	74
3	89
19	36
15	31
18	38
15	31
0	115
2	80
5	63
0	94
9	60
8	64
20	31
2	75
25	11
10	3
3	74
1	80
3	64
1	80
7	60
4	64
0	83
8	55
13	21
4	31
8	12
10	31
5	59
3	52
10	31
8	38
3	57
1	73
3	60
1	64
8	31
2	60
9	21
1	67
10	31
23	5
1	70
9	30
1	63
10	16
8	38
10	37
5	39
23	24
8	42
13	37
13	39
0	64
3	46
10	34
4	42
5	38
0	64
10	34
3	42
1	63
5	37
5	38
6	31
8	31
10	39
8	31
10	32
13	18
2	49
5	35
5	39
4	39
4	20
3	31
2	42
8	35
3	31
8	9
5	31
8	11
8	14
10	19
1	46
1	36
6	6
8	11
10	11
2	40
2	44
5	24
3	39
3	41
3	38
8	39
5	31
10	11
3	38
3	38
8	35
8	17
4	31
5	18
7	10
3	12
5	9
5	9
8	11
5	11
10	11
5	11
3	38
15	3
1	37
1	23
1	23
2	26
3	23
3	31
8	21
1	31
4	10
3	10
3	24
5	11
5	14
5	24
5	24
0	17
3	14
4	21
9	8
2	23
8	11
3	24
5	24
3	10
1	21
3	9
3	11
3	17
3	35
3	24
1	10
1	31
2	24
5	9
3	11
3	10
2	18
3	21
3	17
5	11
13	5
3	23
1	11
4	3
3	10
0	2
1	9
3	6
3	6
3	2
3	11
3	17
2	9
1	10
5	8
1	8
3	2
3	5
1	1