Extreme rain in United States, 13 to 26 September 2021

Name: Extreme rain in United States, 13 to 26 September 2021
Start: 2021-09-13
End: 2021-09-26
Location: United States

Extreme rain in United States, 13 to 26 September 2021: 594 records at 518 stations, peak on 23 September 2021. Closed.

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

Key Facts

Extreme rain in United States, 13 to 26 September 2021 set or tied 594 station records at 518 stations.
It ran from 13 September 2021 to 26 September 2021 (14 days) and its peak day was 23 September 2021.
Status: closed.
Pontiac Wwtp set a daily record precipitation of 71.1 mm (2.8 in) on 22 September 2021.
The busiest day was 23 September 2021 with 117 records.
The oldest broken record in the ranked list had stood for 161 years.

Footprint

13 to 26 September 2021

The area covered by Extreme rain in United States, 13 to 26 September 2021 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, 13 to 26 September 2021: stations that set records in the event
Station	Type	Value	Date
Pontiac Wwtp	Record daily precipitation	71.1 mm (2.8 in)	2021-09-22
Fremont	Record daily precipitation	79.0 mm (3.1 in)	2021-09-23
Renovo	Record daily precipitation	79.2 mm (3.1 in)	2021-09-23
Hohenwald	Record daily precipitation	89.2 mm (3.5 in)	2021-09-19
Baudette	Record daily precipitation	56.4 mm (2.2 in)	2021-09-20
Carlisle Wtp	Record daily precipitation	75.7 mm (3.0 in)	2021-09-23
Ville Platte	Record daily precipitation	152.4 mm (6.0 in)	2021-09-15
Van Wert 1 S	Record daily precipitation	65.8 mm (2.6 in)	2021-09-22
Portland	Record daily precipitation	87.9 mm (3.5 in)	2021-09-18
Eastman 1 W	Record daily precipitation	120.4 mm (4.7 in)	2021-09-20
Brule Rs	Record daily precipitation	83.6 mm (3.3 in)	2021-09-21
Bowling Green Wwtp	Record daily precipitation	58.4 mm (2.3 in)	2021-09-22
Angola	Record daily precipitation	67.3 mm (2.6 in)	2021-09-23
Angelica	Record daily precipitation	55.9 mm (2.2 in)	2021-09-23
Norwalk Wwtp	Record daily precipitation	67.1 mm (2.6 in)	2021-09-23
Winchester 7 SE	Record daily precipitation	82.6 mm (3.3 in)	2021-09-23
Lafayette Rgnl AP	Record daily precipitation	102.4 mm (4.0 in)	2021-09-14
Columbia 3 WNW	Record daily precipitation	127.0 mm (5.0 in)	2021-09-20
Galion Wtr Wks	Record daily precipitation	68.6 mm (2.7 in)	2021-09-23
Oberlin	Record daily precipitation	65.0 mm (2.6 in)	2021-09-23

Records per Day

Peak day 117

Records set or tied each day from 13 September 2021 to 26 September 2021. The most in one day was 117 on 23 September 2021.

Records per day during Extreme rain in United States, 13 to 26 September 2021
Date	Records
2021-09-13	3
2021-09-14	29
2021-09-15	69
2021-09-16	40
2021-09-17	9
2021-09-18	20
2021-09-19	44
2021-09-20	39
2021-09-21	48
2021-09-22	99
2021-09-23	117
2021-09-24	65
2021-09-25	6
2021-09-26	6

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 13 to 26 September 2021 ranked by margin
Ville Platte, 09-15	94.7 mm (3.7 in)
Eastman 1 W, 09-20	83.8 mm (3.3 in)
Columbia 3 WNW, 09-20	73.7 mm (2.9 in)
Brule Rs, 09-21	64.8 mm (2.6 in)
Carlisle Wtp, 09-23	63.0 mm (2.5 in)
Lafayette Rgnl AP, 09-14	62.5 mm (2.5 in)
Hohenwald, 09-19	61.5 mm (2.4 in)
Portland, 09-18	55.1 mm (2.2 in)
Fremont, 09-23	52.3 mm (2.1 in)
Renovo, 09-23	51.3 mm (2.0 in)
Galion Wtr Wks, 09-23	47.3 mm (1.9 in)
Pontiac Wwtp, 09-22	44.9 mm (1.8 in)
Van Wert 1 S, 09-22	44.0 mm (1.7 in)
Norwalk Wwtp, 09-23	42.7 mm (1.7 in)
Winchester 7 SE, 09-23	40.9 mm (1.6 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, 13 to 26 September 2021
Margin (mm)	Years the old record stood
45	108
52	111
51	112
62	119
33	112
63	161
95	79
44	88
55	103
84	68
34	115
65	70
36	95
34	87
43	70
41	108
63	80
47	64
74	63
29	95
87	55
32	104
41	100
42	64
109	39
31	115
57	56
60	56
63	50
20	112
133	39
76	27
34	64
50	72
50	78
33	62
19	108
14	84
30	115
42	64
53	18
36	66
96	28
49	28
21	112
50	52
86	32
14	112
40	20
65	18
59	27
20	126
47	36
37	64
57	4
86	27
17	108
36	39
14	96
45	35
84	32
60	30
42	18
46	62
22	83
16	102
112	7
15	91
43	18
63	12
40	55
129	12
13	80
20	75
15	62
13	126
11	112
97	24
32	72
17	76
28	75
54	23
20	91
46	19
17	62
20	68
28	32
9	95
10	91
79	44
16	87
80	28
29	35
27	64
23	40
8	108
39	32
19	70
56	28
7	95
9	98
36	8
29	32
8	111
7	115
12	84
29	40
32	40
62	31
55	13
70	32
30	24
30	4
13	92
4	95
16	75
18	70
32	18
4	102
30	28
24	68
86	12
45	44
3	120
4	108
56	20
2	123
26	35
26	67
39	50
14	70
30	55
34	42
10	75
5	92
17	54
23	68
47	18
30	16
1	110
26	64
13	67
16	66
29	51
1	99
72	12
11	74
30	18
29	46
31	46
35	40
29	48
14	66
35	18
8	74
43	44
21	60
23	28
42	18
9	15
24	24
27	4
75	12
14	66
36	24
47	28
8	75
20	56
26	16
12	75
22	46
38	28
12	78
25	59
35	42
6	78
27	40
29	40
55	34
17	48
20	32
17	40
19	48
41	10
14	60
11	66
20	56
28	42
18	56
19	55
17	63
13	56
23	68
6	76
45	10
39	20
25	28
35	46
23	10
30	28

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 13 to 26 September 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, 13 to 26 September 2021 (this event)	594 records

Every Record Set

20 of 594

Every record set or tied during Extreme rain in United States, 13 to 26 September 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-09-14	Lafayette Rgnl AP	Record daily precipitation	102.4 mm (4.0 in)	62.5 mm (2.5 in)	80	67 of 100 (Major)
2021-09-15	Ville Platte	Record daily precipitation	152.4 mm (6.0 in)	94.7 mm (3.7 in)	79	72 of 100 (Major)
2021-09-18	Portland	Record daily precipitation	87.9 mm (3.5 in)	55.1 mm (2.2 in)	103	71 of 100 (Major)
2021-09-19	Hohenwald	Record daily precipitation	89.2 mm (3.5 in)	61.5 mm (2.4 in)	119	77 of 100 (Major)
2021-09-20	Baudette	Record daily precipitation	56.4 mm (2.2 in)	32.5 mm (1.3 in)	112	76 of 100 (Major)
2021-09-20	Eastman 1 W	Record daily precipitation	120.4 mm (4.7 in)	83.8 mm (3.3 in)	68	70 of 100 (Major)
2021-09-20	Columbia 3 WNW	Record daily precipitation	127.0 mm (5.0 in)	73.7 mm (2.9 in)	63	65 of 100 (Major)
2021-09-21	Brule Rs	Record daily precipitation	83.6 mm (3.3 in)	64.8 mm (2.6 in)	70	70 of 100 (Major)
2021-09-22	Pontiac Wwtp	Record daily precipitation	71.1 mm (2.8 in)	44.9 mm (1.8 in)	108	80 of 100 (Exceptional)
2021-09-22	Van Wert 1 S	Record daily precipitation	65.8 mm (2.6 in)	44.0 mm (1.7 in)	88	72 of 100 (Major)
2021-09-22	Bowling Green Wwtp	Record daily precipitation	58.4 mm (2.3 in)	34.3 mm (1.4 in)	115	70 of 100 (Major)
2021-09-23	Fremont	Record daily precipitation	79.0 mm (3.1 in)	52.3 mm (2.1 in)	111	80 of 100 (Exceptional)
2021-09-23	Renovo	Record daily precipitation	79.2 mm (3.1 in)	51.3 mm (2.0 in)	112	80 of 100 (Exceptional)
2021-09-23	Carlisle Wtp	Record daily precipitation	75.7 mm (3.0 in)	63.0 mm (2.5 in)	161	73 of 100 (Major)
2021-09-23	Angola	Record daily precipitation	67.3 mm (2.6 in)	36.1 mm (1.4 in)	95	69 of 100 (Major)
2021-09-23	Angelica	Record daily precipitation	55.9 mm (2.2 in)	34.3 mm (1.4 in)	87	69 of 100 (Major)
2021-09-23	Norwalk Wwtp	Record daily precipitation	67.1 mm (2.6 in)	42.7 mm (1.7 in)	70	69 of 100 (Major)
2021-09-23	Winchester 7 SE	Record daily precipitation	82.6 mm (3.3 in)	40.9 mm (1.6 in)	108	68 of 100 (Major)
2021-09-23	Galion Wtr Wks	Record daily precipitation	68.6 mm (2.7 in)	47.3 mm (1.9 in)	64	65 of 100 (Major)
2021-09-23	Oberlin	Record daily precipitation	65.0 mm (2.6 in)	29.2 mm (1.1 in)	95	64 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 594 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
45	108
52	111
51	112
62	119
33	112
63	161
95	79
44	88
55	103
84	68
34	115
65	70
36	95
34	87
43	70
41	108
63	80
47	64
74	63
29	95
87	55
32	104
41	100
42	64
109	39
31	115
57	56
60	56
63	50
20	112
133	39
76	27
34	64
50	72
50	78
33	62
19	108
14	84
30	115
42	64
53	18
36	66
96	28
49	28
21	112
50	52
86	32
14	112
40	20
65	18
59	27
20	126
47	36
37	64
57	4
86	27
17	108
36	39
14	96
45	35
84	32
60	30
42	18
46	62
22	83
16	102
112	7
15	91
43	18
63	12
40	55
129	12
13	80
20	75
15	62
13	126
11	112
97	24
32	72
17	76
28	75
54	23
20	91
46	19
17	62
20	68
28	32
9	95
10	91
79	44
16	87
80	28
29	35
27	64
23	40
8	108
39	32
19	70
56	28
7	95
9	98
36	8
29	32
8	111
7	115
12	84
29	40
32	40
62	31
55	13
70	32
30	24
30	4
13	92
4	95
16	75
18	70
32	18
4	102
30	28
24	68
86	12
45	44
3	120
4	108
56	20
2	123
26	35
26	67
39	50
14	70
30	55
34	42
10	75
5	92
17	54
23	68
47	18
30	16
1	110
26	64
13	67
16	66
29	51
1	99
72	12
11	74
30	18
29	46
31	46
35	40
29	48
14	66
35	18
8	74
43	44
21	60
23	28
42	18
9	15
24	24
27	4
75	12
14	66
36	24
47	28
8	75
20	56
26	16
12	75
22	46
38	28
12	78
25	59
35	42
6	78
27	40
29	40
55	34
17	48
20	32
17	40
19	48
41	10
14	60
11	66
20	56
28	42
18	56
19	55
17	63
13	56
23	68
6	76
45	10
39	20
25	28
35	46
23	10
30	28

Margin (mm)	Years the old record stood
45	108
52	111
51	112
62	119
33	112
63	161
95	79
44	88
55	103
84	68
34	115
65	70
36	95
34	87
43	70
41	108
63	80
47	64
74	63
29	95
87	55
32	104
41	100
42	64
109	39
31	115
57	56
60	56
63	50
20	112
133	39
76	27
34	64
50	72
50	78
33	62
19	108
14	84
30	115
42	64
53	18
36	66
96	28
49	28
21	112
50	52
86	32
14	112
40	20
65	18
59	27
20	126
47	36
37	64
57	4
86	27
17	108
36	39
14	96
45	35
84	32
60	30
42	18
46	62
22	83
16	102
112	7
15	91
43	18
63	12
40	55
129	12
13	80
20	75
15	62
13	126
11	112
97	24
32	72
17	76
28	75
54	23
20	91
46	19
17	62
20	68
28	32
9	95
10	91
79	44
16	87
80	28
29	35
27	64
23	40
8	108
39	32
19	70
56	28
7	95
9	98
36	8
29	32
8	111
7	115
12	84
29	40
32	40
62	31
55	13
70	32
30	24
30	4
13	92
4	95
16	75
18	70
32	18
4	102
30	28
24	68
86	12
45	44
3	120
4	108
56	20
2	123
26	35
26	67
39	50
14	70
30	55
34	42
10	75
5	92
17	54
23	68
47	18
30	16
1	110
26	64
13	67
16	66
29	51
1	99
72	12
11	74
30	18
29	46
31	46
35	40
29	48
14	66
35	18
8	74
43	44
21	60
23	28
42	18
9	15
24	24
27	4
75	12
14	66
36	24
47	28
8	75
20	56
26	16
12	75
22	46
38	28
12	78
25	59
35	42
6	78
27	40
29	40
55	34
17	48
20	32
17	40
19	48
41	10
14	60
11	66
20	56
28	42
18	56
19	55
17	63
13	56
23	68
6	76
45	10
39	20
25	28
35	46
23	10
30	28

Margin (mm)	Years the old record stood
45	108
52	111
51	112
62	119
33	112
63	161
95	79
44	88
55	103
84	68
34	115
65	70
36	95
34	87
43	70
41	108
63	80
47	64
74	63
29	95
87	55
32	104
41	100
42	64
109	39
31	115
57	56
60	56
63	50
20	112
133	39
76	27
34	64
50	72
50	78
33	62
19	108
14	84
30	115
42	64
53	18
36	66
96	28
49	28
21	112
50	52
86	32
14	112
40	20
65	18
59	27
20	126
47	36
37	64
57	4
86	27
17	108
36	39
14	96
45	35
84	32
60	30
42	18
46	62
22	83
16	102
112	7
15	91
43	18
63	12
40	55
129	12
13	80
20	75
15	62
13	126
11	112
97	24
32	72
17	76
28	75
54	23
20	91
46	19
17	62
20	68
28	32
9	95
10	91
79	44
16	87
80	28
29	35
27	64
23	40
8	108
39	32
19	70
56	28
7	95
9	98
36	8
29	32
8	111
7	115
12	84
29	40
32	40
62	31
55	13
70	32
30	24
30	4
13	92
4	95
16	75
18	70
32	18
4	102
30	28
24	68
86	12
45	44
3	120
4	108
56	20
2	123
26	35
26	67
39	50
14	70
30	55
34	42
10	75
5	92
17	54
23	68
47	18
30	16
1	110
26	64
13	67
16	66
29	51
1	99
72	12
11	74
30	18
29	46
31	46
35	40
29	48
14	66
35	18
8	74
43	44
21	60
23	28
42	18
9	15
24	24
27	4
75	12
14	66
36	24
47	28
8	75
20	56
26	16
12	75
22	46
38	28
12	78
25	59
35	42
6	78
27	40
29	40
55	34
17	48
20	32
17	40
19	48
41	10
14	60
11	66
20	56
28	42
18	56
19	55
17	63
13	56
23	68
6	76
45	10
39	20
25	28
35	46
23	10
30	28