Extreme rain in United States, 21 July to 5 August 2018

Name: Extreme rain in United States, 21 July to 5 August 2018
Start: 2018-07-21
End: 2018-08-05
Location: United States

Extreme rain in United States, 21 July to 5 August 2018: 573 records at 498 stations, peak on 1 August 2018. Closed.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Key Facts

Extreme rain in United States, 21 July to 5 August 2018 set or tied 573 station records at 498 stations.
It ran from 21 July 2018 to 5 August 2018 (16 days) and its peak day was 1 August 2018.
Status: closed.
Princeton set an all-time record daily precipitation of 146.8 mm (5.8 in) on 30 July 2018.
The busiest day was 1 August 2018 with 97 records.
The oldest broken record in the ranked list had stood for 127 years.

Footprint

21 July to 5 August 2018

The area covered by Extreme rain in United States, 21 July to 5 August 2018 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 July to 5 August 2018: stations that set records in the event
Station	Type	Value	Date
Princeton	Record daily precipitation	146.8 mm (5.8 in)	2018-07-30
Las Animas	Record daily precipitation	68.8 mm (2.7 in)	2018-07-24
Pratt 3NW	Record daily precipitation	99.3 mm (3.9 in)	2018-07-29
Seminole	Record daily precipitation	104.1 mm (4.1 in)	2018-07-30
Millinocket Muni AP	Record daily precipitation	69.3 mm (2.7 in)	2018-08-04
Charlottesville 2W	Record daily precipitation	176.5 mm (6.9 in)	2018-08-01
Asheville	Record daily precipitation	50.5 mm (2.0 in)	2018-08-02
Atlanta Hartsfield-Jackson Int	Record daily precipitation	91.7 mm (3.6 in)	2018-08-02
Dearborn	Record daily precipitation	81.3 mm (3.2 in)	2018-08-01
Glens Falls AP	Record daily precipitation	61.2 mm (2.4 in)	2018-08-04
Detroit Metro AP	Record daily precipitation	75.2 mm (3.0 in)	2018-07-31
Springfield Abraham Lincoln Ca	Record daily precipitation	71.1 mm (2.8 in)	2018-07-29
Blairsville Exp STN	Record daily precipitation	86.6 mm (3.4 in)	2018-08-02
Highmore	Record daily precipitation	46.0 mm (1.8 in)	2018-07-22
Cedartown	Record daily precipitation	117.3 mm (4.6 in)	2018-08-01
Jasper 1 NNW	Record daily precipitation	89.4 mm (3.5 in)	2018-08-02
Mc Intosh 6 SE	Record daily precipitation	47.0 mm (1.9 in)	2018-07-22
Culbertson	Record daily precipitation	78.7 mm (3.1 in)	2018-07-29
W Kerr Scott Resv	Record daily precipitation	75.7 mm (3.0 in)	2018-07-31
Xenia 6 SSE	Record daily precipitation	71.1 mm (2.8 in)	2018-07-31

Records per Day

Peak day 97

Records set or tied each day from 21 July 2018 to 5 August 2018. The most in one day was 97 on 1 August 2018.

Records per day during Extreme rain in United States, 21 July to 5 August 2018
Date	Records
2018-07-21	4
2018-07-22	8
2018-07-23	17
2018-07-24	19
2018-07-25	3
2018-07-26	15
2018-07-27	11
2018-07-28	16
2018-07-29	43
2018-07-30	72
2018-07-31	66
2018-08-01	97
2018-08-02	92
2018-08-03	49
2018-08-04	54
2018-08-05	7

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 21 July to 5 August 2018 ranked by margin
Seminole, 07-30	73.1 mm (2.9 in)
Blairsville Exp STN, 08-02	61.7 mm (2.4 in)
Dearborn, 08-01	56.7 mm (2.2 in)
Atlanta Hartsfield-Jackson Int, 08-02	54.9 mm (2.2 in)
Pratt 3NW, 07-29	54.6 mm (2.1 in)
Detroit Metro AP, 07-31	49.5 mm (1.9 in)
Millinocket Muni AP, 08-04	46.2 mm (1.8 in)
Glens Falls AP, 08-04	42.1 mm (1.7 in)
W Kerr Scott Resv, 07-31	41.7 mm (1.6 in)
Jasper 1 NNW, 08-02	40.6 mm (1.6 in)
Charlottesville 2W, 08-01	39.8 mm (1.6 in)
Las Animas, 07-24	38.3 mm (1.5 in)
Springfield Abraham Lincoln Ca, 07-29	37.6 mm (1.5 in)
Cedartown, 08-01	30.2 mm (1.2 in)
Asheville, 08-02	29.2 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, 21 July to 5 August 2018
Margin (mm)	Years the old record stood
20	112
38	117
55	92
73	68
46	64
40	68
29	127
55	48
57	52
42	64
50	49
62	35
38	75
30	50
41	80
23	118
21	112
42	52
28	80
27	64
41	52
25	88
28	49
35	69
55	48
23	81
36	85
28	13
14	108
31	69
19	96
44	52
50	40
42	48
21	100
29	91
29	37
69	13
17	92
16	107
37	49
20	104
63	15
43	44
14	73
50	40
14	115
47	44
40	59
33	13
16	116
8	121
24	63
15	107
37	40
49	44
19	88
25	69
46	25
10	92
38	55
24	40
22	64
47	13
42	47
65	28
24	68
25	71
54	25
18	84
16	62
25	40
11	91
56	5
19	76
22	16
18	80
15	93
8	108
40	1
52	1
52	25
40	39
39	35
26	65
6	115
34	52
5	107
26	53
7	104
14	60
57	0
10	76
21	64
15	56
9	85
28	25
25	64
22	65
5	99
3	103
45	17
3	124
44	43
1	108
28	47
43	21
27	69
54	4
23	52
33	28
1	107
33	24
38	31
25	45
19	69
37	40
34	17
17	60
11	80
10	88
15	65
29	44
12	76
1	96
14	60
24	55
15	16
31	0
21	47
41	16
41	4
14	69
2	92
19	47
2	77
35	12
38	0
27	51
24	33
30	33
27	20
14	60
20	40
12	68
6	84
36	28
7	68
24	44
40	21
14	60
31	17
35	17
25	40
32	1
17	60
4	84
14	69
29	33
7	45
10	68
19	55
9	68
3	76
18	41
24	40
15	68
14	52
5	75
21	44
6	75
4	72
8	39
19	36
8	69
21	44
41	4
28	32
32	13
11	64
68	4
21	44
16	48
12	45
15	65
9	64
25	36
9	72
5	69
7	56
37	4
27	7
38	11
4	73
29	39
32	13
5	68
38	21
7	63
4	64

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 21 July to 5 August 2018 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 July to 5 August 2018 (this event)	573 records

Every Record Set

20 of 573

Every record set or tied during Extreme rain in United States, 21 July to 5 August 2018, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2018-07-22	Highmore	Record daily precipitation	46.0 mm (1.8 in)	22.9 mm (0.9 in)	118	57 of 100 (Notable)
2018-07-22	Mc Intosh 6 SE	Record daily precipitation	47.0 mm (1.9 in)	27.4 mm (1.1 in)	64	56 of 100 (Notable)
2018-07-24	Las Animas	Record daily precipitation	68.8 mm (2.7 in)	38.3 mm (1.5 in)	117	75 of 100 (Major)
2018-07-29	Pratt 3NW	Record daily precipitation	99.3 mm (3.9 in)	54.6 mm (2.1 in)	92	72 of 100 (Major)
2018-07-29	Springfield Abraham Lincoln Ca	Record daily precipitation	71.1 mm (2.8 in)	37.6 mm (1.5 in)	75	58 of 100 (Notable)
2018-07-29	Culbertson	Record daily precipitation	78.7 mm (3.1 in)	21.0 mm (0.8 in)	112	56 of 100 (Notable)
2018-07-30	Princeton	Record daily precipitation	146.8 mm (5.8 in)	19.8 mm (0.8 in)	112	77 of 100 (Major)
2018-07-30	Seminole	Record daily precipitation	104.1 mm (4.1 in)	73.1 mm (2.9 in)	68	67 of 100 (Major)
2018-07-31	Detroit Metro AP	Record daily precipitation	75.2 mm (3.0 in)	49.5 mm (1.9 in)	49	60 of 100 (Major)
2018-07-31	W Kerr Scott Resv	Record daily precipitation	75.7 mm (3.0 in)	41.7 mm (1.6 in)	52	56 of 100 (Notable)
2018-07-31	Xenia 6 SSE	Record daily precipitation	71.1 mm (2.8 in)	27.9 mm (1.1 in)	80	56 of 100 (Notable)
2018-08-01	Charlottesville 2W	Record daily precipitation	176.5 mm (6.9 in)	39.8 mm (1.6 in)	68	65 of 100 (Major)
2018-08-01	Dearborn	Record daily precipitation	81.3 mm (3.2 in)	56.7 mm (2.2 in)	52	61 of 100 (Major)
2018-08-01	Cedartown	Record daily precipitation	117.3 mm (4.6 in)	30.2 mm (1.2 in)	50	57 of 100 (Notable)
2018-08-02	Asheville	Record daily precipitation	50.5 mm (2.0 in)	29.2 mm (1.1 in)	127	65 of 100 (Major)
2018-08-02	Atlanta Hartsfield-Jackson Int	Record daily precipitation	91.7 mm (3.6 in)	54.9 mm (2.2 in)	48	62 of 100 (Major)
2018-08-02	Blairsville Exp STN	Record daily precipitation	86.6 mm (3.4 in)	61.7 mm (2.4 in)	35	58 of 100 (Notable)
2018-08-02	Jasper 1 NNW	Record daily precipitation	89.4 mm (3.5 in)	40.6 mm (1.6 in)	80	57 of 100 (Notable)
2018-08-04	Millinocket Muni AP	Record daily precipitation	69.3 mm (2.7 in)	46.2 mm (1.8 in)	64	66 of 100 (Major)
2018-08-04	Glens Falls AP	Record daily precipitation	61.2 mm (2.4 in)	42.1 mm (1.7 in)	64	61 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 573 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 2026-10-12. 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
20	112
38	117
55	92
73	68
46	64
40	68
29	127
55	48
57	52
42	64
50	49
62	35
38	75
30	50
41	80
23	118
21	112
42	52
28	80
27	64
41	52
25	88
28	49
35	69
55	48
23	81
36	85
28	13
14	108
31	69
19	96
44	52
50	40
42	48
21	100
29	91
29	37
69	13
17	92
16	107
37	49
20	104
63	15
43	44
14	73
50	40
14	115
47	44
40	59
33	13
16	116
8	121
24	63
15	107
37	40
49	44
19	88
25	69
46	25
10	92
38	55
24	40
22	64
47	13
42	47
65	28
24	68
25	71
54	25
18	84
16	62
25	40
11	91
56	5
19	76
22	16
18	80
15	93
8	108
40	1
52	1
52	25
40	39
39	35
26	65
6	115
34	52
5	107
26	53
7	104
14	60
57	0
10	76
21	64
15	56
9	85
28	25
25	64
22	65
5	99
3	103
45	17
3	124
44	43
1	108
28	47
43	21
27	69
54	4
23	52
33	28
1	107
33	24
38	31
25	45
19	69
37	40
34	17
17	60
11	80
10	88
15	65
29	44
12	76
1	96
14	60
24	55
15	16
31	0
21	47
41	16
41	4
14	69
2	92
19	47
2	77
35	12
38	0
27	51
24	33
30	33
27	20
14	60
20	40
12	68
6	84
36	28
7	68
24	44
40	21
14	60
31	17
35	17
25	40
32	1
17	60
4	84
14	69
29	33
7	45
10	68
19	55
9	68
3	76
18	41
24	40
15	68
14	52
5	75
21	44
6	75
4	72
8	39
19	36
8	69
21	44
41	4
28	32
32	13
11	64
68	4
21	44
16	48
12	45
15	65
9	64
25	36
9	72
5	69
7	56
37	4
27	7
38	11
4	73
29	39
32	13
5	68
38	21
7	63
4	64

Margin (mm)	Years the old record stood
20	112
38	117
55	92
73	68
46	64
40	68
29	127
55	48
57	52
42	64
50	49
62	35
38	75
30	50
41	80
23	118
21	112
42	52
28	80
27	64
41	52
25	88
28	49
35	69
55	48
23	81
36	85
28	13
14	108
31	69
19	96
44	52
50	40
42	48
21	100
29	91
29	37
69	13
17	92
16	107
37	49
20	104
63	15
43	44
14	73
50	40
14	115
47	44
40	59
33	13
16	116
8	121
24	63
15	107
37	40
49	44
19	88
25	69
46	25
10	92
38	55
24	40
22	64
47	13
42	47
65	28
24	68
25	71
54	25
18	84
16	62
25	40
11	91
56	5
19	76
22	16
18	80
15	93
8	108
40	1
52	1
52	25
40	39
39	35
26	65
6	115
34	52
5	107
26	53
7	104
14	60
57	0
10	76
21	64
15	56
9	85
28	25
25	64
22	65
5	99
3	103
45	17
3	124
44	43
1	108
28	47
43	21
27	69
54	4
23	52
33	28
1	107
33	24
38	31
25	45
19	69
37	40
34	17
17	60
11	80
10	88
15	65
29	44
12	76
1	96
14	60
24	55
15	16
31	0
21	47
41	16
41	4
14	69
2	92
19	47
2	77
35	12
38	0
27	51
24	33
30	33
27	20
14	60
20	40
12	68
6	84
36	28
7	68
24	44
40	21
14	60
31	17
35	17
25	40
32	1
17	60
4	84
14	69
29	33
7	45
10	68
19	55
9	68
3	76
18	41
24	40
15	68
14	52
5	75
21	44
6	75
4	72
8	39
19	36
8	69
21	44
41	4
28	32
32	13
11	64
68	4
21	44
16	48
12	45
15	65
9	64
25	36
9	72
5	69
7	56
37	4
27	7
38	11
4	73
29	39
32	13
5	68
38	21
7	63
4	64

Margin (mm)	Years the old record stood
20	112
38	117
55	92
73	68
46	64
40	68
29	127
55	48
57	52
42	64
50	49
62	35
38	75
30	50
41	80
23	118
21	112
42	52
28	80
27	64
41	52
25	88
28	49
35	69
55	48
23	81
36	85
28	13
14	108
31	69
19	96
44	52
50	40
42	48
21	100
29	91
29	37
69	13
17	92
16	107
37	49
20	104
63	15
43	44
14	73
50	40
14	115
47	44
40	59
33	13
16	116
8	121
24	63
15	107
37	40
49	44
19	88
25	69
46	25
10	92
38	55
24	40
22	64
47	13
42	47
65	28
24	68
25	71
54	25
18	84
16	62
25	40
11	91
56	5
19	76
22	16
18	80
15	93
8	108
40	1
52	1
52	25
40	39
39	35
26	65
6	115
34	52
5	107
26	53
7	104
14	60
57	0
10	76
21	64
15	56
9	85
28	25
25	64
22	65
5	99
3	103
45	17
3	124
44	43
1	108
28	47
43	21
27	69
54	4
23	52
33	28
1	107
33	24
38	31
25	45
19	69
37	40
34	17
17	60
11	80
10	88
15	65
29	44
12	76
1	96
14	60
24	55
15	16
31	0
21	47
41	16
41	4
14	69
2	92
19	47
2	77
35	12
38	0
27	51
24	33
30	33
27	20
14	60
20	40
12	68
6	84
36	28
7	68
24	44
40	21
14	60
31	17
35	17
25	40
32	1
17	60
4	84
14	69
29	33
7	45
10	68
19	55
9	68
3	76
18	41
24	40
15	68
14	52
5	75
21	44
6	75
4	72
8	39
19	36
8	69
21	44
41	4
28	32
32	13
11	64
68	4
21	44
16	48
12	45
15	65
9	64
25	36
9	72
5	69
7	56
37	4
27	7
38	11
4	73
29	39
32	13
5	68
38	21
7	63
4	64