Extreme rain in United States, 23 June to 19 July 2020

Name: Extreme rain in United States, 23 June to 19 July 2020
Start: 2020-06-23
End: 2020-07-19
Location: United States

Extreme rain in United States, 23 June to 19 July 2020: 955 records at 786 stations, peak on 29 June 2020. Closed.

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

Key Facts

Extreme rain in United States, 23 June to 19 July 2020 set or tied 955 station records at 786 stations.
It ran from 23 June 2020 to 19 July 2020 (27 days) and its peak day was 29 June 2020.
Status: closed.
Appleton set a daily record precipitation of 99.1 mm (3.9 in) on 10 July 2020.
The busiest day was 29 June 2020 with 217 records.
The oldest broken record in the ranked list had stood for 130 years.

Footprint

23 June to 19 July 2020

The area covered by Extreme rain in United States, 23 June to 19 July 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, 23 June to 19 July 2020: stations that set records in the event
Station	Type	Value	Date
Appleton	Record daily precipitation	99.1 mm (3.9 in)	2020-07-10
Baldwin	Record daily precipitation	208.8 mm (8.2 in)	2020-06-29
Syracuse 1NE	Record daily precipitation	76.2 mm (3.0 in)	2020-07-15
Minonk	Record daily precipitation	165.1 mm (6.5 in)	2020-07-16
Faribault	Record daily precipitation	90.4 mm (3.6 in)	2020-06-29
Watertown Wwtp	Record daily precipitation	85.9 mm (3.4 in)	2020-07-10
Ellsworth 1E	Record daily precipitation	145.5 mm (5.7 in)	2020-06-29
Aneroid Lake #2	Record daily precipitation	134.6 mm (5.3 in)	2020-06-29
Crookston NW Exp STN	Record daily precipitation	64.5 mm (2.5 in)	2020-07-01
Alma	Record daily precipitation	55.1 mm (2.2 in)	2020-07-10
Huntley Exp STN	Record daily precipitation	42.4 mm (1.7 in)	2020-06-29
Great Falls AP	Record daily precipitation	52.1 mm (2.1 in)	2020-06-29
Beloit	Record daily precipitation	67.3 mm (2.6 in)	2020-07-15
Oshkosh	Record daily precipitation	80.3 mm (3.2 in)	2020-07-10
Bentley	Record daily precipitation	79.8 mm (3.1 in)	2020-07-16
Troy 3N	Record daily precipitation	152.4 mm (6.0 in)	2020-07-15
Dunn Ctr 1E	Record daily precipitation	84.6 mm (3.3 in)	2020-06-30
Grand Forks UNIV (NWS)	Record daily precipitation	64.3 mm (2.5 in)	2020-06-30
Mc Henry 3W	Record daily precipitation	68.6 mm (2.7 in)	2020-07-01
Chula Vista	Record daily precipitation	5.1 mm (0.20 in)	2020-06-29

Records per Day

Peak day 217

Records set or tied each day from 23 June 2020 to 19 July 2020. The most in one day was 217 on 29 June 2020.

Records per day during Extreme rain in United States, 23 June to 19 July 2020
Date	Records
2020-06-23	3
2020-06-24	7
2020-06-25	18
2020-06-26	13
2020-06-27	34
2020-06-28	122
2020-06-29	217
2020-06-30	136
2020-07-01	36
2020-07-02	5
2020-07-03	2
2020-07-04	6
2020-07-05	6
2020-07-06	18
2020-07-07	21
2020-07-08	22
2020-07-09	38
2020-07-10	77
2020-07-11	15
2020-07-12	4
2020-07-13	3
2020-07-14	21
2020-07-15	63
2020-07-16	60
2020-07-17	6
2020-07-18	1
2020-07-19	1

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 23 June to 19 July 2020 ranked by margin
Baldwin, 06-29	79.0 mm (3.1 in)
Bentley, 07-16	62.0 mm (2.4 in)
Troy 3N, 07-15	62.0 mm (2.4 in)
Aneroid Lake #2, 06-29	58.4 mm (2.3 in)
Dunn Ctr 1E, 06-30	54.1 mm (2.1 in)
Appleton, 07-10	53.4 mm (2.1 in)
Faribault, 06-29	48.5 mm (1.9 in)
Watertown Wwtp, 07-10	48.3 mm (1.9 in)
Ellsworth 1E, 06-29	46.9 mm (1.8 in)
Minonk, 07-16	46.2 mm (1.8 in)
Syracuse 1NE, 07-15	42.9 mm (1.7 in)
Beloit, 07-15	42.2 mm (1.7 in)
Mc Henry 3W, 07-01	39.4 mm (1.6 in)
Crookston NW Exp STN, 07-01	38.6 mm (1.5 in)
Grand Forks UNIV (NWS), 06-30	38.6 mm (1.5 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

500 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, 23 June to 19 July 2020
Margin (mm)	Years the old record stood
53	116
79	42
46	69
43	101
49	104
48	98
47	63
39	121
58	23
34	130
24	98
31	79
42	114
62	69
31	111
62	27
5	101
54	42
39	64
39	67
34	68
33	113
58	41
60	51
12	68
18	77
32	67
39	53
32	55
30	14
30	88
20	43
36	96
64	41
17	75
9	109
28	23
21	81
30	62
64	21
23	108
40	62
25	68
12	106
24	108
25	37
17	49
40	32
20	122
48	46
37	86
43	21
55	21
23	32
46	32
40	45
22	113
25	93
17	85
45	9
33	36
13	39
46	28
30	28
23	29
58	43
34	61
19	108
21	110
34	29
24	58
25	24
20	28
34	49
6	109
34	16
53	31
54	35
15	121
34	62
6	108
39	43
41	29
50	2
17	98
119	3
20	37
28	29
3	70
13	61
88	18
60	35
38	21
7	109
20	20
9	115
5	95
20	27
28	22
61	18
18	29
14	98
30	68
30	15
10	97
4	107
25	15
53	28
18	82
24	52
36	10
15	33
12	96
28	69
19	54
9	70
44	50
42	43
65	10
29	58
65	27
2	55
27	32
19	33
3	100
7	111
6	41
18	15
2	126
37	10
31	62
9	79
11	65
6	122
20	63
34	36
12	61
5	83
20	37
25	42
14	51
2	100
25	63
27	31
3	104
16	73
27	34
6	79
3	100
16	82
34	36
10	47
25	3
18	32
28	28
15	52
5	98
11	76
24	28
1	121
17	37
4	109
17	29
36	17
25	49
28	41
15	28
41	5
1	120
17	67
41	48
24	54
36	51
53	18
34	15
15	80
1	107
2	120
3	98
5	92
2	104
30	26
31	21
18	24
23	37
3	97
0	103
8	52
11	56
8	58
0	121
18	61
14	50
1	99
14	59
11	70
18	4
13	28
31	28
10	24

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 23 June to 19 July 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, 23 June to 19 July 2020 (this event)	955 records

Every Record Set

20 of 955

Every record set or tied during Extreme rain in United States, 23 June to 19 July 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-06-29	Baldwin	Record daily precipitation	208.8 mm (8.2 in)	79.0 mm (3.1 in)	42	79 of 100 (Major)
2020-06-29	Faribault	Record daily precipitation	90.4 mm (3.6 in)	48.5 mm (1.9 in)	104	73 of 100 (Major)
2020-06-29	Ellsworth 1E	Record daily precipitation	145.5 mm (5.7 in)	46.9 mm (1.8 in)	63	72 of 100 (Major)
2020-06-29	Aneroid Lake #2	Record daily precipitation	134.6 mm (5.3 in)	58.4 mm (2.3 in)	23	71 of 100 (Major)
2020-06-29	Huntley Exp STN	Record daily precipitation	42.4 mm (1.7 in)	23.6 mm (0.9 in)	98	69 of 100 (Major)
2020-06-29	Great Falls AP	Record daily precipitation	52.1 mm (2.1 in)	30.8 mm (1.2 in)	79	69 of 100 (Major)
2020-06-29	Chula Vista	Record daily precipitation	5.1 mm (0.20 in)	5.1 mm (0.20 in)	101	20 of 100 (Routine)
2020-06-30	Dunn Ctr 1E	Record daily precipitation	84.6 mm (3.3 in)	54.1 mm (2.1 in)	42	62 of 100 (Major)
2020-06-30	Grand Forks UNIV (NWS)	Record daily precipitation	64.3 mm (2.5 in)	38.6 mm (1.5 in)	64	62 of 100 (Major)
2020-07-01	Crookston NW Exp STN	Record daily precipitation	64.5 mm (2.5 in)	38.6 mm (1.5 in)	121	71 of 100 (Major)
2020-07-01	Mc Henry 3W	Record daily precipitation	68.6 mm (2.7 in)	39.4 mm (1.6 in)	67	62 of 100 (Major)
2020-07-10	Appleton	Record daily precipitation	99.1 mm (3.9 in)	53.4 mm (2.1 in)	116	80 of 100 (Exceptional)
2020-07-10	Watertown Wwtp	Record daily precipitation	85.9 mm (3.4 in)	48.3 mm (1.9 in)	98	73 of 100 (Major)
2020-07-10	Alma	Record daily precipitation	55.1 mm (2.2 in)	33.8 mm (1.3 in)	130	70 of 100 (Major)
2020-07-10	Oshkosh	Record daily precipitation	80.3 mm (3.2 in)	30.8 mm (1.2 in)	111	65 of 100 (Major)
2020-07-15	Syracuse 1NE	Record daily precipitation	76.2 mm (3.0 in)	42.9 mm (1.7 in)	101	74 of 100 (Major)
2020-07-15	Beloit	Record daily precipitation	67.3 mm (2.6 in)	42.2 mm (1.7 in)	114	66 of 100 (Major)
2020-07-15	Troy 3N	Record daily precipitation	152.4 mm (6.0 in)	62.0 mm (2.4 in)	27	64 of 100 (Major)
2020-07-16	Minonk	Record daily precipitation	165.1 mm (6.5 in)	46.2 mm (1.8 in)	69	74 of 100 (Major)
2020-07-16	Bentley	Record daily precipitation	79.8 mm (3.1 in)	62.0 mm (2.4 in)	69	65 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 955 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
53	116
79	42
46	69
43	101
49	104
48	98
47	63
39	121
58	23
34	130
24	98
31	79
42	114
62	69
31	111
62	27
5	101
54	42
39	64
39	67
34	68
33	113
58	41
60	51
12	68
18	77
32	67
39	53
32	55
30	14
30	88
20	43
36	96
64	41
17	75
9	109
28	23
21	81
30	62
64	21
23	108
40	62
25	68
12	106
24	108
25	37
17	49
40	32
20	122
48	46
37	86
43	21
55	21
23	32
46	32
40	45
22	113
25	93
17	85
45	9
33	36
13	39
46	28
30	28
23	29
58	43
34	61
19	108
21	110
34	29
24	58
25	24
20	28
34	49
6	109
34	16
53	31
54	35
15	121
34	62
6	108
39	43
41	29
50	2
17	98
119	3
20	37
28	29
3	70
13	61
88	18
60	35
38	21
7	109
20	20
9	115
5	95
20	27
28	22
61	18
18	29
14	98
30	68
30	15
10	97
4	107
25	15
53	28
18	82
24	52
36	10
15	33
12	96
28	69
19	54
9	70
44	50
42	43
65	10
29	58
65	27
2	55
27	32
19	33
3	100
7	111
6	41
18	15
2	126
37	10
31	62
9	79
11	65
6	122
20	63
34	36
12	61
5	83
20	37
25	42
14	51
2	100
25	63
27	31
3	104
16	73
27	34
6	79
3	100
16	82
34	36
10	47
25	3
18	32
28	28
15	52
5	98
11	76
24	28
1	121
17	37
4	109
17	29
36	17
25	49
28	41
15	28
41	5
1	120
17	67
41	48
24	54
36	51
53	18
34	15
15	80
1	107
2	120
3	98
5	92
2	104
30	26
31	21
18	24
23	37
3	97
0	103
8	52
11	56
8	58
0	121
18	61
14	50
1	99
14	59
11	70
18	4
13	28
31	28
10	24

Margin (mm)	Years the old record stood
53	116
79	42
46	69
43	101
49	104
48	98
47	63
39	121
58	23
34	130
24	98
31	79
42	114
62	69
31	111
62	27
5	101
54	42
39	64
39	67
34	68
33	113
58	41
60	51
12	68
18	77
32	67
39	53
32	55
30	14
30	88
20	43
36	96
64	41
17	75
9	109
28	23
21	81
30	62
64	21
23	108
40	62
25	68
12	106
24	108
25	37
17	49
40	32
20	122
48	46
37	86
43	21
55	21
23	32
46	32
40	45
22	113
25	93
17	85
45	9
33	36
13	39
46	28
30	28
23	29
58	43
34	61
19	108
21	110
34	29
24	58
25	24
20	28
34	49
6	109
34	16
53	31
54	35
15	121
34	62
6	108
39	43
41	29
50	2
17	98
119	3
20	37
28	29
3	70
13	61
88	18
60	35
38	21
7	109
20	20
9	115
5	95
20	27
28	22
61	18
18	29
14	98
30	68
30	15
10	97
4	107
25	15
53	28
18	82
24	52
36	10
15	33
12	96
28	69
19	54
9	70
44	50
42	43
65	10
29	58
65	27
2	55
27	32
19	33
3	100
7	111
6	41
18	15
2	126
37	10
31	62
9	79
11	65
6	122
20	63
34	36
12	61
5	83
20	37
25	42
14	51
2	100
25	63
27	31
3	104
16	73
27	34
6	79
3	100
16	82
34	36
10	47
25	3
18	32
28	28
15	52
5	98
11	76
24	28
1	121
17	37
4	109
17	29
36	17
25	49
28	41
15	28
41	5
1	120
17	67
41	48
24	54
36	51
53	18
34	15
15	80
1	107
2	120
3	98
5	92
2	104
30	26
31	21
18	24
23	37
3	97
0	103
8	52
11	56
8	58
0	121
18	61
14	50
1	99
14	59
11	70
18	4
13	28
31	28
10	24

Margin (mm)	Years the old record stood
53	116
79	42
46	69
43	101
49	104
48	98
47	63
39	121
58	23
34	130
24	98
31	79
42	114
62	69
31	111
62	27
5	101
54	42
39	64
39	67
34	68
33	113
58	41
60	51
12	68
18	77
32	67
39	53
32	55
30	14
30	88
20	43
36	96
64	41
17	75
9	109
28	23
21	81
30	62
64	21
23	108
40	62
25	68
12	106
24	108
25	37
17	49
40	32
20	122
48	46
37	86
43	21
55	21
23	32
46	32
40	45
22	113
25	93
17	85
45	9
33	36
13	39
46	28
30	28
23	29
58	43
34	61
19	108
21	110
34	29
24	58
25	24
20	28
34	49
6	109
34	16
53	31
54	35
15	121
34	62
6	108
39	43
41	29
50	2
17	98
119	3
20	37
28	29
3	70
13	61
88	18
60	35
38	21
7	109
20	20
9	115
5	95
20	27
28	22
61	18
18	29
14	98
30	68
30	15
10	97
4	107
25	15
53	28
18	82
24	52
36	10
15	33
12	96
28	69
19	54
9	70
44	50
42	43
65	10
29	58
65	27
2	55
27	32
19	33
3	100
7	111
6	41
18	15
2	126
37	10
31	62
9	79
11	65
6	122
20	63
34	36
12	61
5	83
20	37
25	42
14	51
2	100
25	63
27	31
3	104
16	73
27	34
6	79
3	100
16	82
34	36
10	47
25	3
18	32
28	28
15	52
5	98
11	76
24	28
1	121
17	37
4	109
17	29
36	17
25	49
28	41
15	28
41	5
1	120
17	67
41	48
24	54
36	51
53	18
34	15
15	80
1	107
2	120
3	98
5	92
2	104
30	26
31	21
18	24
23	37
3	97
0	103
8	52
11	56
8	58
0	121
18	61
14	50
1	99
14	59
11	70
18	4
13	28
31	28
10	24