Extreme rain in United States, 28 April to 2 May 2020

Name: Extreme rain in United States, 28 April to 2 May 2020
Start: 2020-04-28
End: 2020-05-02
Location: United States

Extreme rain in United States, 28 April to 2 May 2020: 243 records at 243 stations, peak on 30 April 2020. Closed.

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

Key Facts

Extreme rain in United States, 28 April to 2 May 2020 set or tied 243 station records at 243 stations.
It ran from 28 April 2020 to 2 May 2020 (5 days) and its peak day was 30 April 2020.
Status: closed.
Elmira set a daily record precipitation of 51.3 mm (2.0 in) on 1 May 2020.
The busiest day was 30 April 2020 with 161 records.
The oldest broken record in the ranked list had stood for 173 years.

Footprint

28 April to 2 May 2020

The area covered by Extreme rain in United States, 28 April to 2 May 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, 28 April to 2 May 2020: stations that set records in the event
Station	Type	Value	Date
Elmira	Record daily precipitation	51.3 mm (2.0 in)	2020-05-01
Macon Middle Ga Rgnl AP	Record daily precipitation	93.2 mm (3.7 in)	2020-04-29
Ithaca Cornell UNIV	Record daily precipitation	41.9 mm (1.6 in)	2020-05-01
Millheim	Record daily precipitation	71.1 mm (2.8 in)	2020-05-01
Emporia 1 WNW	Record daily precipitation	61.0 mm (2.4 in)	2020-05-01
Addison	Record daily precipitation	35.3 mm (1.4 in)	2020-05-01
Tarboro 1 S	Record daily precipitation	83.6 mm (3.3 in)	2020-05-01
Ft Mill 4 NW	Record daily precipitation	83.1 mm (3.3 in)	2020-04-30
Candor 2SE	Record daily precipitation	51.3 mm (2.0 in)	2020-05-01
Lewiston	Record daily precipitation	54.1 mm (2.1 in)	2020-04-30
Henderson 2 NNW	Record daily precipitation	43.2 mm (1.7 in)	2020-05-01
Freeville 1 NE	Record daily precipitation	51.6 mm (2.0 in)	2020-05-01
Oxford Hydro STN	Record daily precipitation	57.9 mm (2.3 in)	2020-04-30
Selinsgrove 2 S	Record daily precipitation	46.7 mm (1.8 in)	2020-05-01
Wilson 3 SW	Record daily precipitation	64.8 mm (2.6 in)	2020-04-30
Covington Fltr Plt	Record daily precipitation	52.1 mm (2.1 in)	2020-04-30
Bennetts Brg	Record daily precipitation	56.6 mm (2.2 in)	2020-05-01
Waverly	Record daily precipitation	33.3 mm (1.3 in)	2020-05-01
Rocky Mt 8 ESE	Record daily precipitation	73.2 mm (2.9 in)	2020-05-01
Wellsboro 4 SW	Record daily precipitation	48.3 mm (1.9 in)	2020-05-01

Records per Day

Peak day 161

Records set or tied each day from 28 April 2020 to 2 May 2020. The most in one day was 161 on 30 April 2020.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 28 April to 2 May 2020 ranked by margin
Macon Middle Ga Rgnl AP, 04-29	51.8 mm (2.0 in)
Millheim, 05-01	42.1 mm (1.7 in)
Emporia 1 WNW, 05-01	35.6 mm (1.4 in)
Covington Fltr Plt, 04-30	34.8 mm (1.4 in)
Lewiston, 04-30	33.8 mm (1.3 in)
Wellsboro 4 SW, 05-01	33.6 mm (1.3 in)
Oxford Hydro STN, 04-30	30.7 mm (1.2 in)
Freeville 1 NE, 05-01	30.0 mm (1.2 in)
Wilson 3 SW, 04-30	27.2 mm (1.1 in)
Candor 2SE, 05-01	26.4 mm (1.0 in)
Rocky Mt 8 ESE, 05-01	25.4 mm (1.0 in)
Elmira, 05-01	22.3 mm (0.9 in)
Tarboro 1 S, 05-01	20.9 mm (0.8 in)
Bennetts Brg, 05-01	19.8 mm (0.8 in)
Henderson 2 NNW, 05-01	17.3 mm (0.7 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

243 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, 28 April to 2 May 2020
Margin (mm)	Years the old record stood
22	112
52	66
14	109
42	37
36	67
14	111
21	111
26	56
14	84
17	111
34	58
30	26
31	71
14	102
20	77
27	70
35	24
9	111
25	67
34	6
54	29
32	52
48	52
13	77
26	56
21	73
6	83
32	6
24	71
26	52
22	71
56	24
21	56
28	57
11	77
24	67
25	45
22	67
19	56
16	56
5	108
11	96
36	31
17	71
8	173
17	56
48	24
38	31
29	15
19	57
14	71
16	56
1	111
17	61
17	70
23	52
15	75
1	101
19	57
17	57
22	44
10	73
24	57
4	55
16	57
20	57
15	57
24	31
17	24
18	46
32	24
7	67
25	24
17	56
24	24
14	57
15	57
3	88
10	71
18	24
25	26
11	67
31	11
23	21
36	21
17	57
9	67
28	15
9	71
4	69
31	21
7	41
30	23
31	6
27	21
35	6
24	24
23	26
9	57
12	40
7	57
5	67
3	67
3	67
7	50
3	67
6	67
13	52
16	25
11	54
10	52
1	77
25	26
5	71
3	67
20	21
10	40
0	71
1	73
10	5
1	67
18	21
17	31
14	11
19	21
14	30
17	21
7	45
17	24
8	54
30	22
1	69
2	57
13	24
3	58
22	24
10	31
5	37
18	6
3	57
29	6
3	56
7	9
5	44
10	29
4	54
7	37
6	37
17	26
20	6
1	56
17	6
11	31
17	15
19	21
7	29
12	31
16	24
23	11
14	11
20	6
8	24
7	24
5	37
1	57
28	6
4	40
3	37
17	6
13	6
2	46
17	21
14	6
4	46
3	37
8	24
7	26
11	24
5	26
6	37
17	18
16	6
2	46
11	21
9	24
10	24
18	6
7	21
10	6
8	24
0	52
9	11
8	15
15	16
15	24
10	24
8	26
2	24
2	6
2	31

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 28 April to 2 May 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, 28 April to 2 May 2020 (this event)	243 records

Every Record Set

20 of 243

Every record set or tied during Extreme rain in United States, 28 April to 2 May 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-04-29	Macon Middle Ga Rgnl AP	Record daily precipitation	93.2 mm (3.7 in)	51.8 mm (2.0 in)	66	60 of 100 (Major)
2020-04-30	Ft Mill 4 NW	Record daily precipitation	83.1 mm (3.3 in)	13.8 mm (0.5 in)	84	55 of 100 (Notable)
2020-04-30	Lewiston	Record daily precipitation	54.1 mm (2.1 in)	33.8 mm (1.3 in)	58	54 of 100 (Notable)
2020-04-30	Oxford Hydro STN	Record daily precipitation	57.9 mm (2.3 in)	30.7 mm (1.2 in)	71	52 of 100 (Notable)
2020-04-30	Wilson 3 SW	Record daily precipitation	64.8 mm (2.6 in)	27.2 mm (1.1 in)	70	51 of 100 (Notable)
2020-04-30	Covington Fltr Plt	Record daily precipitation	52.1 mm (2.1 in)	34.8 mm (1.4 in)	24	51 of 100 (Notable)
2020-05-01	Elmira	Record daily precipitation	51.3 mm (2.0 in)	22.3 mm (0.9 in)	112	67 of 100 (Major)
2020-05-01	Ithaca Cornell UNIV	Record daily precipitation	41.9 mm (1.6 in)	14.0 mm (0.6 in)	109	58 of 100 (Notable)
2020-05-01	Millheim	Record daily precipitation	71.1 mm (2.8 in)	42.1 mm (1.7 in)	37	58 of 100 (Notable)
2020-05-01	Emporia 1 WNW	Record daily precipitation	61.0 mm (2.4 in)	35.6 mm (1.4 in)	67	58 of 100 (Notable)
2020-05-01	Addison	Record daily precipitation	35.3 mm (1.4 in)	14.2 mm (0.6 in)	111	56 of 100 (Notable)
2020-05-01	Tarboro 1 S	Record daily precipitation	83.6 mm (3.3 in)	20.9 mm (0.8 in)	111	56 of 100 (Notable)
2020-05-01	Candor 2SE	Record daily precipitation	51.3 mm (2.0 in)	26.4 mm (1.0 in)	56	55 of 100 (Notable)
2020-05-01	Henderson 2 NNW	Record daily precipitation	43.2 mm (1.7 in)	17.3 mm (0.7 in)	111	54 of 100 (Notable)
2020-05-01	Freeville 1 NE	Record daily precipitation	51.6 mm (2.0 in)	30.0 mm (1.2 in)	26	53 of 100 (Notable)
2020-05-01	Selinsgrove 2 S	Record daily precipitation	46.7 mm (1.8 in)	13.7 mm (0.5 in)	102	52 of 100 (Notable)
2020-05-01	Bennetts Brg	Record daily precipitation	56.6 mm (2.2 in)	19.8 mm (0.8 in)	77	51 of 100 (Notable)
2020-05-01	Waverly	Record daily precipitation	33.3 mm (1.3 in)	8.9 mm (0.35 in)	111	50 of 100 (Notable)
2020-05-01	Rocky Mt 8 ESE	Record daily precipitation	73.2 mm (2.9 in)	25.4 mm (1.0 in)	67	50 of 100 (Notable)
2020-05-01	Wellsboro 4 SW	Record daily precipitation	48.3 mm (1.9 in)	33.6 mm (1.3 in)	6	50 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 243 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
22	112
52	66
14	109
42	37
36	67
14	111
21	111
26	56
14	84
17	111
34	58
30	26
31	71
14	102
20	77
27	70
35	24
9	111
25	67
34	6
54	29
32	52
48	52
13	77
26	56
21	73
6	83
32	6
24	71
26	52
22	71
56	24
21	56
28	57
11	77
24	67
25	45
22	67
19	56
16	56
5	108
11	96
36	31
17	71
8	173
17	56
48	24
38	31
29	15
19	57
14	71
16	56
1	111
17	61
17	70
23	52
15	75
1	101
19	57
17	57
22	44
10	73
24	57
4	55
16	57
20	57
15	57
24	31
17	24
18	46
32	24
7	67
25	24
17	56
24	24
14	57
15	57
3	88
10	71
18	24
25	26
11	67
31	11
23	21
36	21
17	57
9	67
28	15
9	71
4	69
31	21
7	41
30	23
31	6
27	21
35	6
24	24
23	26
9	57
12	40
7	57
5	67
3	67
3	67
7	50
3	67
6	67
13	52
16	25
11	54
10	52
1	77
25	26
5	71
3	67
20	21
10	40
0	71
1	73
10	5
1	67
18	21
17	31
14	11
19	21
14	30
17	21
7	45
17	24
8	54
30	22
1	69
2	57
13	24
3	58
22	24
10	31
5	37
18	6
3	57
29	6
3	56
7	9
5	44
10	29
4	54
7	37
6	37
17	26
20	6
1	56
17	6
11	31
17	15
19	21
7	29
12	31
16	24
23	11
14	11
20	6
8	24
7	24
5	37
1	57
28	6
4	40
3	37
17	6
13	6
2	46
17	21
14	6
4	46
3	37
8	24
7	26
11	24
5	26
6	37
17	18
16	6
2	46
11	21
9	24
10	24
18	6
7	21
10	6
8	24
0	52
9	11
8	15
15	16
15	24
10	24
8	26
2	24
2	6
2	31

Margin (mm)	Years the old record stood
22	112
52	66
14	109
42	37
36	67
14	111
21	111
26	56
14	84
17	111
34	58
30	26
31	71
14	102
20	77
27	70
35	24
9	111
25	67
34	6
54	29
32	52
48	52
13	77
26	56
21	73
6	83
32	6
24	71
26	52
22	71
56	24
21	56
28	57
11	77
24	67
25	45
22	67
19	56
16	56
5	108
11	96
36	31
17	71
8	173
17	56
48	24
38	31
29	15
19	57
14	71
16	56
1	111
17	61
17	70
23	52
15	75
1	101
19	57
17	57
22	44
10	73
24	57
4	55
16	57
20	57
15	57
24	31
17	24
18	46
32	24
7	67
25	24
17	56
24	24
14	57
15	57
3	88
10	71
18	24
25	26
11	67
31	11
23	21
36	21
17	57
9	67
28	15
9	71
4	69
31	21
7	41
30	23
31	6
27	21
35	6
24	24
23	26
9	57
12	40
7	57
5	67
3	67
3	67
7	50
3	67
6	67
13	52
16	25
11	54
10	52
1	77
25	26
5	71
3	67
20	21
10	40
0	71
1	73
10	5
1	67
18	21
17	31
14	11
19	21
14	30
17	21
7	45
17	24
8	54
30	22
1	69
2	57
13	24
3	58
22	24
10	31
5	37
18	6
3	57
29	6
3	56
7	9
5	44
10	29
4	54
7	37
6	37
17	26
20	6
1	56
17	6
11	31
17	15
19	21
7	29
12	31
16	24
23	11
14	11
20	6
8	24
7	24
5	37
1	57
28	6
4	40
3	37
17	6
13	6
2	46
17	21
14	6
4	46
3	37
8	24
7	26
11	24
5	26
6	37
17	18
16	6
2	46
11	21
9	24
10	24
18	6
7	21
10	6
8	24
0	52
9	11
8	15
15	16
15	24
10	24
8	26
2	24
2	6
2	31

Margin (mm)	Years the old record stood
22	112
52	66
14	109
42	37
36	67
14	111
21	111
26	56
14	84
17	111
34	58
30	26
31	71
14	102
20	77
27	70
35	24
9	111
25	67
34	6
54	29
32	52
48	52
13	77
26	56
21	73
6	83
32	6
24	71
26	52
22	71
56	24
21	56
28	57
11	77
24	67
25	45
22	67
19	56
16	56
5	108
11	96
36	31
17	71
8	173
17	56
48	24
38	31
29	15
19	57
14	71
16	56
1	111
17	61
17	70
23	52
15	75
1	101
19	57
17	57
22	44
10	73
24	57
4	55
16	57
20	57
15	57
24	31
17	24
18	46
32	24
7	67
25	24
17	56
24	24
14	57
15	57
3	88
10	71
18	24
25	26
11	67
31	11
23	21
36	21
17	57
9	67
28	15
9	71
4	69
31	21
7	41
30	23
31	6
27	21
35	6
24	24
23	26
9	57
12	40
7	57
5	67
3	67
3	67
7	50
3	67
6	67
13	52
16	25
11	54
10	52
1	77
25	26
5	71
3	67
20	21
10	40
0	71
1	73
10	5
1	67
18	21
17	31
14	11
19	21
14	30
17	21
7	45
17	24
8	54
30	22
1	69
2	57
13	24
3	58
22	24
10	31
5	37
18	6
3	57
29	6
3	56
7	9
5	44
10	29
4	54
7	37
6	37
17	26
20	6
1	56
17	6
11	31
17	15
19	21
7	29
12	31
16	24
23	11
14	11
20	6
8	24
7	24
5	37
1	57
28	6
4	40
3	37
17	6
13	6
2	46
17	21
14	6
4	46
3	37
8	24
7	26
11	24
5	26
6	37
17	18
16	6
2	46
11	21
9	24
10	24
18	6
7	21
10	6
8	24
0	52
9	11
8	15
15	16
15	24
10	24
8	26
2	24
2	6
2	31