Extreme rain in United States, 9 to 19 March 2021

Name: Extreme rain in United States, 9 to 19 March 2021
Start: 2021-03-09
End: 2021-03-19
Location: United States

Extreme rain in United States, 9 to 19 March 2021: 1,157 records at 953 stations, peak on 14 March 2021. Closed.

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

Key Facts

Extreme rain in United States, 9 to 19 March 2021 set or tied 1,157 station records at 953 stations.
It ran from 9 March 2021 to 19 March 2021 (11 days) and its peak day was 14 March 2021.
Status: closed.
Seward set a monthly record daily precipitation of 86.1 mm (3.4 in) on 14 March 2021.
The busiest day was 14 March 2021 with 317 records.
The oldest broken record in the ranked list had stood for 124 years.

Footprint

9 to 19 March 2021

The area covered by Extreme rain in United States, 9 to 19 March 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, 9 to 19 March 2021: stations that set records in the event
Station	Type	Value	Date
Seward	Record daily precipitation	86.1 mm (3.4 in)	2021-03-14
Lenora Coop	Record daily precipitation	88.9 mm (3.5 in)	2021-03-14
Osceola	Record daily precipitation	96.8 mm (3.8 in)	2021-03-14
Cheyenne	Record daily precipitation	49.5 mm (1.9 in)	2021-03-14
Clayton Muni Air Pk	Record daily precipitation	35.3 mm (1.4 in)	2021-03-13
Healy	Record daily precipitation	56.6 mm (2.2 in)	2021-03-14
Wallace	Record daily precipitation	47.8 mm (1.9 in)	2021-03-14
Cassville 1 NE	Record daily precipitation	91.7 mm (3.6 in)	2021-03-13
Goodland	Record daily precipitation	37.8 mm (1.5 in)	2021-03-13
Syracuse 1NE	Record daily precipitation	34.5 mm (1.4 in)	2021-03-14
Scottsbluff W B Heilig Fld AP	Record daily precipitation	29.5 mm (1.2 in)	2021-03-14
Julesburg	Record daily precipitation	45.7 mm (1.8 in)	2021-03-14
Gresham 3W	Record daily precipitation	96.0 mm (3.8 in)	2021-03-14
Mc Cook	Record daily precipitation	44.2 mm (1.7 in)	2021-03-14
Polk	Record daily precipitation	104.4 mm (4.1 in)	2021-03-14
Elwood 8 S	Record daily precipitation	68.6 mm (2.7 in)	2021-03-14
O'Neill	Record daily precipitation	48.8 mm (1.9 in)	2021-03-15
Booker	Record daily precipitation	61.5 mm (2.4 in)	2021-03-14
W Pt	Record daily precipitation	59.4 mm (2.3 in)	2021-03-15
Holly	Record daily precipitation	32.3 mm (1.3 in)	2021-03-14

Records per Day

Peak day 317

Records set or tied each day from 9 March 2021 to 19 March 2021. The most in one day was 317 on 14 March 2021.

Records per day during Extreme rain in United States, 9 to 19 March 2021
Date	Records
2021-03-09	2
2021-03-10	55
2021-03-11	58
2021-03-12	50
2021-03-13	133
2021-03-14	317
2021-03-15	177
2021-03-16	57
2021-03-17	55
2021-03-18	193
2021-03-19	60

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 9 to 19 March 2021 ranked by margin
Cassville 1 NE, 03-13	57.9 mm (2.3 in)
Polk, 03-14	46.0 mm (1.8 in)
Gresham 3W, 03-14	43.4 mm (1.7 in)
Healy, 03-14	41.4 mm (1.6 in)
Lenora Coop, 03-14	39.1 mm (1.5 in)
Booker, 03-14	38.6 mm (1.5 in)
Wallace, 03-14	37.6 mm (1.5 in)
W Pt, 03-15	36.5 mm (1.4 in)
O'Neill, 03-15	34.3 mm (1.4 in)
Clayton Muni Air Pk, 03-13	30.7 mm (1.2 in)
Osceola, 03-14	29.5 mm (1.2 in)
Goodland, 03-13	29.2 mm (1.1 in)
Mc Cook, 03-14	29.0 mm (1.1 in)
Seward, 03-14	28.2 mm (1.1 in)
Julesburg, 03-14	27.4 mm (1.1 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, 9 to 19 March 2021
Margin (mm)	Years the old record stood
28	106
39	77
30	98
17	75
41	108
38	108
31	104
24	96
58	104
29	96
19	121
27	108
43	61
29	124
46	61
18	119
34	83
37	76
39	91
20	92
51	68
41	33
35	41
48	0
34	33
25	124
25	92
22	84
19	108
30	41
44	68
37	84
30	122
22	108
23	98
27	21
25	58
29	76
75	52
27	52
30	60
34	60
38	48
28	13
18	60
53	44
22	21
38	52
17	79
52	48
21	88
8	93
18	124
10	91
26	76
16	108
9	119
39	38
12	106
16	99
16	108
48	31
62	22
39	38
25	41
23	33
19	68
16	32
86	36
20	92
24	36
29	48
18	83
31	33
24	64
15	108
42	76
28	68
41	32
53	24
10	94
22	33
24	33
22	41
14	102
19	40
32	48
21	83
4	104
31	44
10	116
25	122
30	35
21	88
15	48
28	39
46	38
26	96
26	30
16	96
25	68
36	35
14	96
23	41
19	114
33	48
20	39
20	35
54	60
33	74
21	39
16	12
23	68
12	116
56	15
17	36
20	33
13	54
19	68
9	119
21	121
36	32
28	32
23	35
29	24
22	68
9	108
24	68
16	83
26	38
14	68
14	40
10	108
10	98
17	68
12	79
18	25
13	83
20	33
13	83
14	8
10	38
41	24
13	24
23	94
22	68
23	38
10	99
36	2
12	99
8	94
80	0
37	2
17	48
46	20
22	74
10	60
52	35
39	31
10	116
18	48
23	74
32	46
39	2
24	38
13	58
13	100
15	76
12	16
23	31
8	64
15	41
15	31
4	120
11	96
7	102
53	0
37	2
19	68
8	83
35	2
23	38
18	38
29	26
38	70
15	28
8	95
29	15
22	48
11	58
14	33
20	48
35	2
12	83
11	71
36	26
19	11
6	88
23	34
20	12

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 9 to 19 March 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, 9 to 19 March 2021 (this event)	1,157 records

Every Record Set

20 of 1,157

Every record set or tied during Extreme rain in United States, 9 to 19 March 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-03-13	Clayton Muni Air Pk	Record daily precipitation	35.3 mm (1.4 in)	30.7 mm (1.2 in)	104	80 of 100 (Exceptional)
2021-03-13	Cassville 1 NE	Record daily precipitation	91.7 mm (3.6 in)	57.9 mm (2.3 in)	104	79 of 100 (Major)
2021-03-13	Goodland	Record daily precipitation	37.8 mm (1.5 in)	29.2 mm (1.1 in)	96	79 of 100 (Major)
2021-03-14	Seward	Record daily precipitation	86.1 mm (3.4 in)	28.2 mm (1.1 in)	106	84 of 100 (Exceptional)
2021-03-14	Lenora Coop	Record daily precipitation	88.9 mm (3.5 in)	39.1 mm (1.5 in)	77	83 of 100 (Exceptional)
2021-03-14	Osceola	Record daily precipitation	96.8 mm (3.8 in)	29.5 mm (1.2 in)	98	83 of 100 (Exceptional)
2021-03-14	Cheyenne	Record daily precipitation	49.5 mm (1.9 in)	16.7 mm (0.7 in)	75	82 of 100 (Exceptional)
2021-03-14	Healy	Record daily precipitation	56.6 mm (2.2 in)	41.4 mm (1.6 in)	108	80 of 100 (Exceptional)
2021-03-14	Wallace	Record daily precipitation	47.8 mm (1.9 in)	37.6 mm (1.5 in)	108	80 of 100 (Exceptional)
2021-03-14	Syracuse 1NE	Record daily precipitation	34.5 mm (1.4 in)	24.3 mm (1.0 in)	96	79 of 100 (Major)
2021-03-14	Scottsbluff W B Heilig Fld AP	Record daily precipitation	29.5 mm (1.2 in)	19.3 mm (0.8 in)	121	79 of 100 (Major)
2021-03-14	Julesburg	Record daily precipitation	45.7 mm (1.8 in)	27.4 mm (1.1 in)	108	78 of 100 (Major)
2021-03-14	Gresham 3W	Record daily precipitation	96.0 mm (3.8 in)	43.4 mm (1.7 in)	61	78 of 100 (Major)
2021-03-14	Mc Cook	Record daily precipitation	44.2 mm (1.7 in)	29.0 mm (1.1 in)	124	76 of 100 (Major)
2021-03-14	Polk	Record daily precipitation	104.4 mm (4.1 in)	46.0 mm (1.8 in)	61	75 of 100 (Major)
2021-03-14	Elwood 8 S	Record daily precipitation	68.6 mm (2.7 in)	17.8 mm (0.7 in)	119	74 of 100 (Major)
2021-03-14	Booker	Record daily precipitation	61.5 mm (2.4 in)	38.6 mm (1.5 in)	91	72 of 100 (Major)
2021-03-14	Holly	Record daily precipitation	32.3 mm (1.3 in)	20.4 mm (0.8 in)	92	71 of 100 (Major)
2021-03-15	O'Neill	Record daily precipitation	48.8 mm (1.9 in)	34.3 mm (1.4 in)	83	74 of 100 (Major)
2021-03-15	W Pt	Record daily precipitation	59.4 mm (2.3 in)	36.5 mm (1.4 in)	76	72 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 1,157 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
28	106
39	77
30	98
17	75
41	108
38	108
31	104
24	96
58	104
29	96
19	121
27	108
43	61
29	124
46	61
18	119
34	83
37	76
39	91
20	92
51	68
41	33
35	41
48	0
34	33
25	124
25	92
22	84
19	108
30	41
44	68
37	84
30	122
22	108
23	98
27	21
25	58
29	76
75	52
27	52
30	60
34	60
38	48
28	13
18	60
53	44
22	21
38	52
17	79
52	48
21	88
8	93
18	124
10	91
26	76
16	108
9	119
39	38
12	106
16	99
16	108
48	31
62	22
39	38
25	41
23	33
19	68
16	32
86	36
20	92
24	36
29	48
18	83
31	33
24	64
15	108
42	76
28	68
41	32
53	24
10	94
22	33
24	33
22	41
14	102
19	40
32	48
21	83
4	104
31	44
10	116
25	122
30	35
21	88
15	48
28	39
46	38
26	96
26	30
16	96
25	68
36	35
14	96
23	41
19	114
33	48
20	39
20	35
54	60
33	74
21	39
16	12
23	68
12	116
56	15
17	36
20	33
13	54
19	68
9	119
21	121
36	32
28	32
23	35
29	24
22	68
9	108
24	68
16	83
26	38
14	68
14	40
10	108
10	98
17	68
12	79
18	25
13	83
20	33
13	83
14	8
10	38
41	24
13	24
23	94
22	68
23	38
10	99
36	2
12	99
8	94
80	0
37	2
17	48
46	20
22	74
10	60
52	35
39	31
10	116
18	48
23	74
32	46
39	2
24	38
13	58
13	100
15	76
12	16
23	31
8	64
15	41
15	31
4	120
11	96
7	102
53	0
37	2
19	68
8	83
35	2
23	38
18	38
29	26
38	70
15	28
8	95
29	15
22	48
11	58
14	33
20	48
35	2
12	83
11	71
36	26
19	11
6	88
23	34
20	12

Margin (mm)	Years the old record stood
28	106
39	77
30	98
17	75
41	108
38	108
31	104
24	96
58	104
29	96
19	121
27	108
43	61
29	124
46	61
18	119
34	83
37	76
39	91
20	92
51	68
41	33
35	41
48	0
34	33
25	124
25	92
22	84
19	108
30	41
44	68
37	84
30	122
22	108
23	98
27	21
25	58
29	76
75	52
27	52
30	60
34	60
38	48
28	13
18	60
53	44
22	21
38	52
17	79
52	48
21	88
8	93
18	124
10	91
26	76
16	108
9	119
39	38
12	106
16	99
16	108
48	31
62	22
39	38
25	41
23	33
19	68
16	32
86	36
20	92
24	36
29	48
18	83
31	33
24	64
15	108
42	76
28	68
41	32
53	24
10	94
22	33
24	33
22	41
14	102
19	40
32	48
21	83
4	104
31	44
10	116
25	122
30	35
21	88
15	48
28	39
46	38
26	96
26	30
16	96
25	68
36	35
14	96
23	41
19	114
33	48
20	39
20	35
54	60
33	74
21	39
16	12
23	68
12	116
56	15
17	36
20	33
13	54
19	68
9	119
21	121
36	32
28	32
23	35
29	24
22	68
9	108
24	68
16	83
26	38
14	68
14	40
10	108
10	98
17	68
12	79
18	25
13	83
20	33
13	83
14	8
10	38
41	24
13	24
23	94
22	68
23	38
10	99
36	2
12	99
8	94
80	0
37	2
17	48
46	20
22	74
10	60
52	35
39	31
10	116
18	48
23	74
32	46
39	2
24	38
13	58
13	100
15	76
12	16
23	31
8	64
15	41
15	31
4	120
11	96
7	102
53	0
37	2
19	68
8	83
35	2
23	38
18	38
29	26
38	70
15	28
8	95
29	15
22	48
11	58
14	33
20	48
35	2
12	83
11	71
36	26
19	11
6	88
23	34
20	12

Margin (mm)	Years the old record stood
28	106
39	77
30	98
17	75
41	108
38	108
31	104
24	96
58	104
29	96
19	121
27	108
43	61
29	124
46	61
18	119
34	83
37	76
39	91
20	92
51	68
41	33
35	41
48	0
34	33
25	124
25	92
22	84
19	108
30	41
44	68
37	84
30	122
22	108
23	98
27	21
25	58
29	76
75	52
27	52
30	60
34	60
38	48
28	13
18	60
53	44
22	21
38	52
17	79
52	48
21	88
8	93
18	124
10	91
26	76
16	108
9	119
39	38
12	106
16	99
16	108
48	31
62	22
39	38
25	41
23	33
19	68
16	32
86	36
20	92
24	36
29	48
18	83
31	33
24	64
15	108
42	76
28	68
41	32
53	24
10	94
22	33
24	33
22	41
14	102
19	40
32	48
21	83
4	104
31	44
10	116
25	122
30	35
21	88
15	48
28	39
46	38
26	96
26	30
16	96
25	68
36	35
14	96
23	41
19	114
33	48
20	39
20	35
54	60
33	74
21	39
16	12
23	68
12	116
56	15
17	36
20	33
13	54
19	68
9	119
21	121
36	32
28	32
23	35
29	24
22	68
9	108
24	68
16	83
26	38
14	68
14	40
10	108
10	98
17	68
12	79
18	25
13	83
20	33
13	83
14	8
10	38
41	24
13	24
23	94
22	68
23	38
10	99
36	2
12	99
8	94
80	0
37	2
17	48
46	20
22	74
10	60
52	35
39	31
10	116
18	48
23	74
32	46
39	2
24	38
13	58
13	100
15	76
12	16
23	31
8	64
15	41
15	31
4	120
11	96
7	102
53	0
37	2
19	68
8	83
35	2
23	38
18	38
29	26
38	70
15	28
8	95
29	15
22	48
11	58
14	33
20	48
35	2
12	83
11	71
36	26
19	11
6	88
23	34
20	12