Extreme rain in United States, 21 to 26 September 2020

Name: Extreme rain in United States, 21 to 26 September 2020
Start: 2020-09-21
End: 2020-09-26
Location: United States

Extreme rain in United States, 21 to 26 September 2020: 174 records at 157 stations, peak on 23 September 2020. Closed.

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

Key Facts

Extreme rain in United States, 21 to 26 September 2020 set or tied 174 station records at 157 stations.
It ran from 21 September 2020 to 26 September 2020 (6 days) and its peak day was 23 September 2020.
Status: closed.
St Joseph 3 N set a daily record precipitation of 116.6 mm (4.6 in) on 24 September 2020.
The busiest day was 23 September 2020 with 50 records.
The oldest broken record in the ranked list had stood for 118 years.

Footprint

21 to 26 September 2020

The area covered by Extreme rain in United States, 21 to 26 September 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, 21 to 26 September 2020: stations that set records in the event
Station	Type	Value	Date
St Joseph 3 N	Record daily precipitation	116.6 mm (4.6 in)	2020-09-24
Schulenburg	Record daily precipitation	137.2 mm (5.4 in)	2020-09-22
Mansfield 4 NW	Record daily precipitation	116.8 mm (4.6 in)	2020-09-23
Columbus	Record daily precipitation	94.0 mm (3.7 in)	2020-09-22
El Campo	Record daily precipitation	155.2 mm (6.1 in)	2020-09-22
Crystal Springs Exp STN	Record daily precipitation	91.9 mm (3.6 in)	2020-09-24
Alexandria	Record daily precipitation	91.9 mm (3.6 in)	2020-09-24
Marksville	Record daily precipitation	139.2 mm (5.5 in)	2020-09-24
Hallettsville 2 N	Record daily precipitation	100.1 mm (3.9 in)	2020-09-22
Meadville	Record daily precipitation	181.1 mm (7.1 in)	2020-09-24
Monroe Rgnl AP	Record daily precipitation	71.1 mm (2.8 in)	2020-09-23
Houston William P Hobby AP	Record daily precipitation	185.9 mm (7.3 in)	2020-09-22
Kountze	Record daily precipitation	146.1 mm (5.8 in)	2020-09-23
Sugar Land	Record daily precipitation	88.4 mm (3.5 in)	2020-09-21
Belzoni	Record daily precipitation	114.3 mm (4.5 in)	2020-09-24
Stoneville Exp STN	Record daily precipitation	107.7 mm (4.2 in)	2020-09-24
Arkadelphia 2 N	Record daily precipitation	68.6 mm (2.7 in)	2020-09-23
Portland	Record daily precipitation	101.6 mm (4.0 in)	2020-09-23
Oak Grove	Record daily precipitation	136.7 mm (5.4 in)	2020-09-24
Natchez	Record daily precipitation	130.6 mm (5.1 in)	2020-09-24

Records per Day

Peak day 50

Records set or tied each day from 21 September 2020 to 26 September 2020. The most in one day was 50 on 23 September 2020.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 21 to 26 September 2020 ranked by margin
Meadville, 09-24	142.7 mm (5.6 in)
El Campo, 09-22	113.3 mm (4.5 in)
Marksville, 09-24	107.4 mm (4.2 in)
Kountze, 09-23	106.7 mm (4.2 in)
Natchez, 09-24	97.6 mm (3.8 in)
Oak Grove, 09-24	97.3 mm (3.8 in)
Houston William P Hobby AP, 09-22	87.9 mm (3.5 in)
Schulenburg, 09-22	85.9 mm (3.4 in)
St Joseph 3 N, 09-24	70.1 mm (2.8 in)
Belzoni, 09-24	68.3 mm (2.7 in)
Portland, 09-23	67.6 mm (2.7 in)
Mansfield 4 NW, 09-23	64.0 mm (2.5 in)
Monroe Rgnl AP, 09-23	59.2 mm (2.3 in)
Hallettsville 2 N, 09-22	53.9 mm (2.1 in)
Alexandria, 09-24	51.8 mm (2.0 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

174 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, 21 to 26 September 2020
Margin (mm)	Years the old record stood
70	80
64	118
86	63
51	105
45	106
113	55
52	79
107	51
143	29
54	63
59	65
88	23
107	23
68	14
36	80
48	65
23	100
68	9
97	23
98	2
18	101
84	9
42	65
74	11
44	55
13	118
80	15
30	79
33	63
7	106
21	80
60	23
32	55
47	12
32	65
11	80
54	11
24	69
22	65
2	95
14	80
51	15
8	80
33	55
9	80
62	14
19	55
38	23
35	49
9	73
15	64
54	11
16	65
49	11
30	27
49	23
17	22
40	35
48	36
46	19
3	75
43	9
40	12
44	25
29	53
45	26
63	19
72	15
44	14
4	65
32	29
22	38
7	55
7	65
11	50
5	63
1	64
2	65
34	10
10	49
31	36
34	28
20	29
8	55
30	36
22	35
40	23
8	55
28	11
1	65
34	23
0	55
38	19
23	28
5	55
15	35
16	20
46	23
7	45
7	50
31	11
14	31
23	20
21	2
15	7
3	40
14	19
16	23
4	0
12	31
15	31
29	9
22	2
3	49
11	18
19	12
13	20
18	23
4	12
22	2
18	14
16	23
3	40
8	7
26	10
8	18
14	5
9	14
4	20
8	29
9	11
13	29
3	36
24	7
13	5
22	2
2	26
13	14
18	20
30	2
1	23
1	32
9	28
7	23
2	17
7	14
9	19
6	18
0	31
2	32
22	2
1	36
14	23
12	5
13	2
9	23
3	7
7	23
4	20
6	14
17	2
4	20
5	2
15	2
1	11
2	14
4	17
5	14
8	2
6	2
2	5
2	2
0	2
4	2

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 21 to 26 September 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, 21 to 26 September 2020 (this event)	174 records

Every Record Set

20 of 174

Every record set or tied during Extreme rain in United States, 21 to 26 September 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-09-21	Sugar Land	Record daily precipitation	88.4 mm (3.5 in)	47.8 mm (1.9 in)	65	52 of 100 (Notable)
2020-09-22	Schulenburg	Record daily precipitation	137.2 mm (5.4 in)	85.9 mm (3.4 in)	63	66 of 100 (Major)
2020-09-22	Columbus	Record daily precipitation	94.0 mm (3.7 in)	51.3 mm (2.0 in)	105	65 of 100 (Major)
2020-09-22	El Campo	Record daily precipitation	155.2 mm (6.1 in)	113.3 mm (4.5 in)	55	64 of 100 (Major)
2020-09-22	Hallettsville 2 N	Record daily precipitation	100.1 mm (3.9 in)	53.9 mm (2.1 in)	63	58 of 100 (Notable)
2020-09-22	Houston William P Hobby AP	Record daily precipitation	185.9 mm (7.3 in)	87.9 mm (3.5 in)	23	55 of 100 (Notable)
2020-09-23	Mansfield 4 NW	Record daily precipitation	116.8 mm (4.6 in)	64.0 mm (2.5 in)	118	66 of 100 (Major)
2020-09-23	Monroe Rgnl AP	Record daily precipitation	71.1 mm (2.8 in)	59.2 mm (2.3 in)	65	56 of 100 (Notable)
2020-09-23	Kountze	Record daily precipitation	146.1 mm (5.8 in)	106.7 mm (4.2 in)	23	53 of 100 (Notable)
2020-09-23	Arkadelphia 2 N	Record daily precipitation	68.6 mm (2.7 in)	22.9 mm (0.9 in)	100	51 of 100 (Notable)
2020-09-23	Portland	Record daily precipitation	101.6 mm (4.0 in)	67.6 mm (2.7 in)	9	51 of 100 (Notable)
2020-09-24	St Joseph 3 N	Record daily precipitation	116.6 mm (4.6 in)	70.1 mm (2.8 in)	80	74 of 100 (Major)
2020-09-24	Crystal Springs Exp STN	Record daily precipitation	91.9 mm (3.6 in)	45.4 mm (1.8 in)	106	64 of 100 (Major)
2020-09-24	Alexandria	Record daily precipitation	91.9 mm (3.6 in)	51.8 mm (2.0 in)	79	62 of 100 (Major)
2020-09-24	Marksville	Record daily precipitation	139.2 mm (5.5 in)	107.4 mm (4.2 in)	51	60 of 100 (Major)
2020-09-24	Meadville	Record daily precipitation	181.1 mm (7.1 in)	142.7 mm (5.6 in)	29	58 of 100 (Notable)
2020-09-24	Belzoni	Record daily precipitation	114.3 mm (4.5 in)	68.3 mm (2.7 in)	14	52 of 100 (Notable)
2020-09-24	Stoneville Exp STN	Record daily precipitation	107.7 mm (4.2 in)	36.3 mm (1.4 in)	80	52 of 100 (Notable)
2020-09-24	Oak Grove	Record daily precipitation	136.7 mm (5.4 in)	97.3 mm (3.8 in)	23	51 of 100 (Notable)
2020-09-24	Natchez	Record daily precipitation	130.6 mm (5.1 in)	97.6 mm (3.8 in)	2	50 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 174 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
70	80
64	118
86	63
51	105
45	106
113	55
52	79
107	51
143	29
54	63
59	65
88	23
107	23
68	14
36	80
48	65
23	100
68	9
97	23
98	2
18	101
84	9
42	65
74	11
44	55
13	118
80	15
30	79
33	63
7	106
21	80
60	23
32	55
47	12
32	65
11	80
54	11
24	69
22	65
2	95
14	80
51	15
8	80
33	55
9	80
62	14
19	55
38	23
35	49
9	73
15	64
54	11
16	65
49	11
30	27
49	23
17	22
40	35
48	36
46	19
3	75
43	9
40	12
44	25
29	53
45	26
63	19
72	15
44	14
4	65
32	29
22	38
7	55
7	65
11	50
5	63
1	64
2	65
34	10
10	49
31	36
34	28
20	29
8	55
30	36
22	35
40	23
8	55
28	11
1	65
34	23
0	55
38	19
23	28
5	55
15	35
16	20
46	23
7	45
7	50
31	11
14	31
23	20
21	2
15	7
3	40
14	19
16	23
4	0
12	31
15	31
29	9
22	2
3	49
11	18
19	12
13	20
18	23
4	12
22	2
18	14
16	23
3	40
8	7
26	10
8	18
14	5
9	14
4	20
8	29
9	11
13	29
3	36
24	7
13	5
22	2
2	26
13	14
18	20
30	2
1	23
1	32
9	28
7	23
2	17
7	14
9	19
6	18
0	31
2	32
22	2
1	36
14	23
12	5
13	2
9	23
3	7
7	23
4	20
6	14
17	2
4	20
5	2
15	2
1	11
2	14
4	17
5	14
8	2
6	2
2	5
2	2
0	2
4	2

Margin (mm)	Years the old record stood
70	80
64	118
86	63
51	105
45	106
113	55
52	79
107	51
143	29
54	63
59	65
88	23
107	23
68	14
36	80
48	65
23	100
68	9
97	23
98	2
18	101
84	9
42	65
74	11
44	55
13	118
80	15
30	79
33	63
7	106
21	80
60	23
32	55
47	12
32	65
11	80
54	11
24	69
22	65
2	95
14	80
51	15
8	80
33	55
9	80
62	14
19	55
38	23
35	49
9	73
15	64
54	11
16	65
49	11
30	27
49	23
17	22
40	35
48	36
46	19
3	75
43	9
40	12
44	25
29	53
45	26
63	19
72	15
44	14
4	65
32	29
22	38
7	55
7	65
11	50
5	63
1	64
2	65
34	10
10	49
31	36
34	28
20	29
8	55
30	36
22	35
40	23
8	55
28	11
1	65
34	23
0	55
38	19
23	28
5	55
15	35
16	20
46	23
7	45
7	50
31	11
14	31
23	20
21	2
15	7
3	40
14	19
16	23
4	0
12	31
15	31
29	9
22	2
3	49
11	18
19	12
13	20
18	23
4	12
22	2
18	14
16	23
3	40
8	7
26	10
8	18
14	5
9	14
4	20
8	29
9	11
13	29
3	36
24	7
13	5
22	2
2	26
13	14
18	20
30	2
1	23
1	32
9	28
7	23
2	17
7	14
9	19
6	18
0	31
2	32
22	2
1	36
14	23
12	5
13	2
9	23
3	7
7	23
4	20
6	14
17	2
4	20
5	2
15	2
1	11
2	14
4	17
5	14
8	2
6	2
2	5
2	2
0	2
4	2

Margin (mm)	Years the old record stood
70	80
64	118
86	63
51	105
45	106
113	55
52	79
107	51
143	29
54	63
59	65
88	23
107	23
68	14
36	80
48	65
23	100
68	9
97	23
98	2
18	101
84	9
42	65
74	11
44	55
13	118
80	15
30	79
33	63
7	106
21	80
60	23
32	55
47	12
32	65
11	80
54	11
24	69
22	65
2	95
14	80
51	15
8	80
33	55
9	80
62	14
19	55
38	23
35	49
9	73
15	64
54	11
16	65
49	11
30	27
49	23
17	22
40	35
48	36
46	19
3	75
43	9
40	12
44	25
29	53
45	26
63	19
72	15
44	14
4	65
32	29
22	38
7	55
7	65
11	50
5	63
1	64
2	65
34	10
10	49
31	36
34	28
20	29
8	55
30	36
22	35
40	23
8	55
28	11
1	65
34	23
0	55
38	19
23	28
5	55
15	35
16	20
46	23
7	45
7	50
31	11
14	31
23	20
21	2
15	7
3	40
14	19
16	23
4	0
12	31
15	31
29	9
22	2
3	49
11	18
19	12
13	20
18	23
4	12
22	2
18	14
16	23
3	40
8	7
26	10
8	18
14	5
9	14
4	20
8	29
9	11
13	29
3	36
24	7
13	5
22	2
2	26
13	14
18	20
30	2
1	23
1	32
9	28
7	23
2	17
7	14
9	19
6	18
0	31
2	32
22	2
1	36
14	23
12	5
13	2
9	23
3	7
7	23
4	20
6	14
17	2
4	20
5	2
15	2
1	11
2	14
4	17
5	14
8	2
6	2
2	5
2	2
0	2
4	2