Extreme rain in United States, 23 to 31 December 2021

Name: Extreme rain in United States, 23 to 31 December 2021
Start: 2021-12-23
End: 2021-12-31
Location: United States

Extreme rain in United States, 23 to 31 December 2021: 118 records at 108 stations, peak on 30 December 2021. Closed.

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

Key Facts

Extreme rain in United States, 23 to 31 December 2021 set or tied 118 station records at 108 stations.
It ran from 23 December 2021 to 31 December 2021 (9 days) and its peak day was 30 December 2021.
Status: closed.
Gainesville set a daily record precipitation of 51.6 mm (2.0 in) on 30 December 2021.
The busiest day was 30 December 2021 with 38 records.
The oldest broken record in the ranked list had stood for 116 years.

Footprint

23 to 31 December 2021

The area covered by Extreme rain in United States, 23 to 31 December 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, 23 to 31 December 2021: stations that set records in the event
Station	Type	Value	Date
Gainesville	Record daily precipitation	51.6 mm (2.0 in)	2021-12-30
Newnan 7 WNW	Record daily precipitation	81.8 mm (3.2 in)	2021-12-31
Cayuga Lock #1	Record daily precipitation	38.1 mm (1.5 in)	2021-12-23
Calera	Record daily precipitation	41.7 mm (1.6 in)	2021-12-30
Truman Dam & Rsvr	Record daily precipitation	44.2 mm (1.7 in)	2021-12-28
Hernando	Record daily precipitation	46.5 mm (1.8 in)	2021-12-30
Findlay Wpcc	Record daily precipitation	35.3 mm (1.4 in)	2021-12-25
Versailles	Record daily precipitation	25.9 mm (1.0 in)	2021-12-28
Commerce 4 NNW	Record daily precipitation	50.8 mm (2.0 in)	2021-12-30
Jacksonville	Record daily precipitation	76.2 mm (3.0 in)	2021-12-30
Morgantown Muni AP	Record daily precipitation	34.0 mm (1.3 in)	2021-12-25
Atlanta Hartsfield-Jackson Int	Record daily precipitation	72.4 mm (2.9 in)	2021-12-30
Morgantown L&D	Record daily precipitation	34.8 mm (1.4 in)	2021-12-26
Cleveland Fltr Plt	Record daily precipitation	45.5 mm (1.8 in)	2021-12-29
Indiana 3 SE	Record daily precipitation	33.8 mm (1.3 in)	2021-12-26
Dallas 7 NE	Record daily precipitation	51.1 mm (2.0 in)	2021-12-30
Lakeview	Record daily precipitation	25.1 mm (1.0 in)	2021-12-26
Tell City	Record daily precipitation	30.0 mm (1.2 in)	2021-12-29
Hamilton	Record daily precipitation	44.5 mm (1.8 in)	2021-12-29
Farmland 5 NNW	Record daily precipitation	21.8 mm (0.9 in)	2021-12-29

Records per Day

Peak day 38

Records set or tied each day from 23 December 2021 to 31 December 2021. The most in one day was 38 on 30 December 2021.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 23 to 31 December 2021 ranked by margin
Jacksonville, 12-30	46.2 mm (1.8 in)
Newnan 7 WNW, 12-31	43.7 mm (1.7 in)
Atlanta Hartsfield-Jackson Int, 12-30	35.6 mm (1.4 in)
Commerce 4 NNW, 12-30	29.0 mm (1.1 in)
Truman Dam & Rsvr, 12-28	27.7 mm (1.1 in)
Cayuga Lock #1, 12-23	22.4 mm (0.9 in)
Gainesville, 12-30	20.9 mm (0.8 in)
Hamilton, 12-29	18.8 mm (0.7 in)
Cleveland Fltr Plt, 12-29	17.6 mm (0.7 in)
Calera, 12-30	13.8 mm (0.5 in)
Morgantown Muni AP, 12-25	11.4 mm (0.4 in)
Dallas 7 NE, 12-30	8.7 mm (0.34 in)
Findlay Wpcc, 12-25	6.6 mm (0.26 in)
Indiana 3 SE, 12-26	6.4 mm (0.25 in)
Lakeview, 12-26	4.8 mm (0.19 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

118 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, 23 to 31 December 2021
Margin (mm)	Years the old record stood
21	114
44	48
22	15
14	90
4	106
3	115
28	39
7	76
29	48
1	116
46	3
11	34
36	6
18	59
5	64
9	72
6	64
5	72
5	70
19	59
31	18
17	19
1	72
3	72
37	8
0	70
7	56
2	70
3	68
18	31
2	64
4	56
6	59
14	50
6	47
2	64
2	67
19	24
4	52
15	32
4	46
2	59
11	39
1	64
6	38
12	47
9	34
10	40
9	32
12	12
1	54
8	48
6	52
10	7
20	6
2	38
9	30
2	36
1	55
12	8
4	47
1	46
10	10
0	40
3	31
2	38
7	15
2	38
19	3
10	2
4	31
2	46
1	38
15	8
10	31
12	6
2	24
1	31
13	2
1	14
8	18
10	6
3	12
4	32
7	6
7	6
2	34
5	10
2	24
1	26
1	34
2	30
15	3
1	27
5	12
5	6
2	10
9	2
2	15
3	6
4	6
11	2
3	18
9	6
3	18
2	10
1	12
2	6
1	10
4	2
1	6
0	6
2	2
2	6
2	2
1	6
2	2
0	2

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 23 to 31 December 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, 23 to 31 December 2021 (this event)	118 records

Every Record Set

20 of 118

Every record set or tied during Extreme rain in United States, 23 to 31 December 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-12-23	Cayuga Lock #1	Record daily precipitation	38.1 mm (1.5 in)	22.4 mm (0.9 in)	15	46 of 100 (Notable)
2021-12-25	Findlay Wpcc	Record daily precipitation	35.3 mm (1.4 in)	6.6 mm (0.26 in)	76	41 of 100 (Notable)
2021-12-25	Morgantown Muni AP	Record daily precipitation	34.0 mm (1.3 in)	11.4 mm (0.4 in)	34	36 of 100 (Notable)
2021-12-26	Morgantown L&D	Record daily precipitation	34.8 mm (1.4 in)	4.6 mm (0.18 in)	64	35 of 100 (Notable)
2021-12-26	Indiana 3 SE	Record daily precipitation	33.8 mm (1.3 in)	6.4 mm (0.25 in)	64	34 of 100 (Routine)
2021-12-26	Lakeview	Record daily precipitation	25.1 mm (1.0 in)	4.8 mm (0.19 in)	70	33 of 100 (Routine)
2021-12-28	Truman Dam & Rsvr	Record daily precipitation	44.2 mm (1.7 in)	27.7 mm (1.1 in)	39	42 of 100 (Notable)
2021-12-28	Versailles	Record daily precipitation	25.9 mm (1.0 in)	0.5 mm (0.02 in)	116	40 of 100 (Notable)
2021-12-29	Cleveland Fltr Plt	Record daily precipitation	45.5 mm (1.8 in)	17.6 mm (0.7 in)	59	35 of 100 (Notable)
2021-12-29	Tell City	Record daily precipitation	30.0 mm (1.2 in)	4.6 mm (0.18 in)	72	33 of 100 (Routine)
2021-12-29	Hamilton	Record daily precipitation	44.5 mm (1.8 in)	18.8 mm (0.7 in)	59	32 of 100 (Routine)
2021-12-29	Farmland 5 NNW	Record daily precipitation	21.8 mm (0.9 in)	4.0 mm (0.16 in)	106	20 of 100 (Routine)
2021-12-30	Gainesville	Record daily precipitation	51.6 mm (2.0 in)	20.9 mm (0.8 in)	114	54 of 100 (Notable)
2021-12-30	Calera	Record daily precipitation	41.7 mm (1.6 in)	13.8 mm (0.5 in)	90	44 of 100 (Notable)
2021-12-30	Hernando	Record daily precipitation	46.5 mm (1.8 in)	3.3 mm (0.13 in)	115	42 of 100 (Notable)
2021-12-30	Commerce 4 NNW	Record daily precipitation	50.8 mm (2.0 in)	29.0 mm (1.1 in)	48	40 of 100 (Notable)
2021-12-30	Jacksonville	Record daily precipitation	76.2 mm (3.0 in)	46.2 mm (1.8 in)	3	39 of 100 (Notable)
2021-12-30	Atlanta Hartsfield-Jackson Int	Record daily precipitation	72.4 mm (2.9 in)	35.6 mm (1.4 in)	6	36 of 100 (Notable)
2021-12-30	Dallas 7 NE	Record daily precipitation	51.1 mm (2.0 in)	8.7 mm (0.34 in)	72	34 of 100 (Routine)
2021-12-31	Newnan 7 WNW	Record daily precipitation	81.8 mm (3.2 in)	43.7 mm (1.7 in)	48	53 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 118 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.

Date	Records
2021-12-23	1
2021-12-24	2
2021-12-25	12
2021-12-26	13
2021-12-27	3
2021-12-28	13
2021-12-29	32
2021-12-30	38
2021-12-31	4

Margin (mm)	Years the old record stood
21	114
44	48
22	15
14	90
4	106
3	115
28	39
7	76
29	48
1	116
46	3
11	34
36	6
18	59
5	64
9	72
6	64
5	72
5	70
19	59
31	18
17	19
1	72
3	72
37	8
0	70
7	56
2	70
3	68
18	31
2	64
4	56
6	59
14	50
6	47
2	64
2	67
19	24
4	52
15	32
4	46
2	59
11	39
1	64
6	38
12	47
9	34
10	40
9	32
12	12
1	54
8	48
6	52
10	7
20	6
2	38
9	30
2	36
1	55
12	8
4	47
1	46
10	10
0	40
3	31
2	38
7	15
2	38
19	3
10	2
4	31
2	46
1	38
15	8
10	31
12	6
2	24
1	31
13	2
1	14
8	18
10	6
3	12
4	32
7	6
7	6
2	34
5	10
2	24
1	26
1	34
2	30
15	3
1	27
5	12
5	6
2	10
9	2
2	15
3	6
4	6
11	2
3	18
9	6
3	18
2	10
1	12
2	6
1	10
4	2
1	6
0	6
2	2
2	6
2	2
1	6
2	2
0	2

Margin (mm)	Years the old record stood
21	114
44	48
22	15
14	90
4	106
3	115
28	39
7	76
29	48
1	116
46	3
11	34
36	6
18	59
5	64
9	72
6	64
5	72
5	70
19	59
31	18
17	19
1	72
3	72
37	8
0	70
7	56
2	70
3	68
18	31
2	64
4	56
6	59
14	50
6	47
2	64
2	67
19	24
4	52
15	32
4	46
2	59
11	39
1	64
6	38
12	47
9	34
10	40
9	32
12	12
1	54
8	48
6	52
10	7
20	6
2	38
9	30
2	36
1	55
12	8
4	47
1	46
10	10
0	40
3	31
2	38
7	15
2	38
19	3
10	2
4	31
2	46
1	38
15	8
10	31
12	6
2	24
1	31
13	2
1	14
8	18
10	6
3	12
4	32
7	6
7	6
2	34
5	10
2	24
1	26
1	34
2	30
15	3
1	27
5	12
5	6
2	10
9	2
2	15
3	6
4	6
11	2
3	18
9	6
3	18
2	10
1	12
2	6
1	10
4	2
1	6
0	6
2	2
2	6
2	2
1	6
2	2
0	2

Margin (mm)	Years the old record stood
21	114
44	48
22	15
14	90
4	106
3	115
28	39
7	76
29	48
1	116
46	3
11	34
36	6
18	59
5	64
9	72
6	64
5	72
5	70
19	59
31	18
17	19
1	72
3	72
37	8
0	70
7	56
2	70
3	68
18	31
2	64
4	56
6	59
14	50
6	47
2	64
2	67
19	24
4	52
15	32
4	46
2	59
11	39
1	64
6	38
12	47
9	34
10	40
9	32
12	12
1	54
8	48
6	52
10	7
20	6
2	38
9	30
2	36
1	55
12	8
4	47
1	46
10	10
0	40
3	31
2	38
7	15
2	38
19	3
10	2
4	31
2	46
1	38
15	8
10	31
12	6
2	24
1	31
13	2
1	14
8	18
10	6
3	12
4	32
7	6
7	6
2	34
5	10
2	24
1	26
1	34
2	30
15	3
1	27
5	12
5	6
2	10
9	2
2	15
3	6
4	6
11	2
3	18
9	6
3	18
2	10
1	12
2	6
1	10
4	2
1	6
0	6
2	2
2	6
2	2
1	6
2	2
0	2