Snow event in United States, 10 to 20 April 2020

Name: Snow event in United States, 10 to 20 April 2020
Start: 2020-04-10
End: 2020-04-20
Location: United States

Snow event in United States, 10 to 20 April 2020: 1,139 records at 636 stations, peak on 17 April 2020. Closed.

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

Key Facts

Snow event in United States, 10 to 20 April 2020 set or tied 1,139 station records at 636 stations.
It ran from 10 April 2020 to 20 April 2020 (11 days) and its peak day was 17 April 2020.
Status: closed.
Allerton set a daily record snowfall of 20.8 cm (8.2 in) on 17 April 2020.
The busiest day was 17 April 2020 with 317 records.
The oldest broken record in the ranked list had stood for 139 years.

Footprint

10 to 20 April 2020

The area covered by Snow event in United States, 10 to 20 April 2020 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Snow event in United States, 10 to 20 April 2020: stations that set records in the event
Station	Type	Value	Date
Allerton	Record daily snowfall	20.8 cm (8.2 in)	2020-04-17
Seward	Record daily snowfall	15.7 cm (6.2 in)	2020-04-17
Genoa 2 W	Record daily snowfall	14.0 cm (5.5 in)	2020-04-16
El Morro Natl Mon	Record snow depth	10.2 cm (4.0 in)	2020-04-14
Atlantic 1 NE	Record snow depth	10.2 cm (4.0 in)	2020-04-17
Chariton 1 E	Record daily snowfall	18.0 cm (7.1 in)	2020-04-17
Osceola	Record daily snowfall	17.5 cm (6.9 in)	2020-04-17
Shenandoah	Record daily snowfall	15.2 cm (6.0 in)	2020-04-17
Bradshaw	Record daily snowfall	13.0 cm (5.1 in)	2020-04-17
Nebraska City 2NW	Record daily snowfall	20.3 cm (8.0 in)	2020-04-17
Osceola	Record daily snowfall	13.5 cm (5.3 in)	2020-04-17
Mt Ayr	Record daily snowfall	26.9 cm (10.6 in)	2020-04-17
Port Allegany	Record snow depth	15.2 cm (6.0 in)	2020-04-18
Creston 2 SW	Record daily snowfall	18.3 cm (7.2 in)	2020-04-17
Unionville	Record daily snowfall	29.2 cm (11.5 in)	2020-04-17
St Peter	Record daily snowfall	17.8 cm (7.0 in)	2020-04-13
Longmont 2 ESE	Record snow depth	25.4 cm (10.0 in)	2020-04-16
Clarinda	Record daily snowfall	20.3 cm (8.0 in)	2020-04-17
Galesburg	Record daily snowfall	14.0 cm (5.5 in)	2020-04-17

Records per Day

Peak day 317

Records set or tied each day from 10 April 2020 to 20 April 2020. The most in one day was 317 on 17 April 2020.

Records per day during Snow event in United States, 10 to 20 April 2020
Date	Records
2020-04-10	1
2020-04-11	59
2020-04-12	96
2020-04-13	199
2020-04-14	92
2020-04-15	93
2020-04-16	114
2020-04-17	317
2020-04-18	155
2020-04-19	12
2020-04-20	1

Top Records by Margin

Margin over the record replaced

Top records of Snow event in United States, 10 to 20 April 2020 ranked by margin
Allerton, 04-17	27.9 cm (11.0 in)
Mt Ayr, 04-17	26.9 cm (10.6 in)
Unionville, 04-17	26.7 cm (10.5 in)
Nebraska City 2NW, 04-17	20.3 cm (8.0 in)
Longmont 2 ESE, 04-16	20.3 cm (8.0 in)
Allerton, 04-17	19.0 cm (7.5 in)
Osceola, 04-17	17.5 cm (6.9 in)
Clarinda, 04-17	17.3 cm (6.8 in)
Creston 2 SW, 04-17	17.0 cm (6.7 in)
St Peter, 04-13	16.5 cm (6.5 in)
Chariton 1 E, 04-17	15.5 cm (6.1 in)
Shenandoah, 04-17	15.2 cm (6.0 in)
Port Allegany, 04-18	15.2 cm (6.0 in)
Genoa 2 W, 04-16	14.0 cm (5.5 in)
Galesburg, 04-17	14.0 cm (5.5 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 Snow event in United States, 10 to 20 April 2020
Margin (mm)	Years the old record stood
190	110
132	113
140	126
102	126
155	110
102	82
175	120
152	101
125	98
203	71
135	120
269	124
152	71
279	113
170	76
267	110
203	98
173	110
165	116
140	122
122	126
132	110
127	104
178	119
140	113
117	115
203	119
114	120
203	71
203	71
94	99
102	84
152	111
140	86
152	69
127	99
178	126
165	68
226	73
72	110
175	65
127	113
89	120
153	67
185	50
76	126
76	93
163	67
152	108
73	115
76	120
152	62
152	119
119	108
76	115
178	55
76	117
153	68
152	98
127	93
168	60
112	60
290	40
127	69
102	71
76	116
51	113
127	68
51	96
76	123
204	99
119	78
175	59
86	123
76	126
51	119
102	71
84	126
102	75
107	82
58	110
74	115
102	66
51	98
79	115
152	71
127	115
127	126
135	64
127	101
127	114
127	87
96	104
66	120
127	71
127	85
140	60
51	108
102	77
178	81
68	92
51	99
79	89
51	124
50	72
102	124
127	72
51	115
152	84
59	115
36	116
48	110
158	58
40	123
76	106
102	70
51	113
127	68
117	21
127	76
51	118
43	119
152	81
127	99
51	125
38	104
51	113
127	95
102	75
102	75
203	71
56	126
102	77
203	58
157	18
147	70
160	27
51	99
239	37
53	92
102	124
35	119
64	120
104	71
137	58
152	58
152	57
43	120
58	104
76	92
51	97
46	80
77	67
51	130
38	113
76	113
51	115
102	93
36	126
51	126
102	68
51	99
25	124
25	124
46	97
66	75
102	68
76	92
51	121
51	108
104	47
22	115
51	107
178	71
81	31
76	99
203	72
76	81
25	102
73	80
51	126
36	99
102	70
51	99
51	98
51	83
51	126
102	43
26	115
127	61
102	54
51	124
39	92
51	123
94	59
51	124
25	114
51	119
97	69
51	108

Compared With Other Events

Station records per event

Station records in Snow event in United States, 10 to 20 April 2020 compared with similar events
Snow event in United States, 3 to 27 January 2024	2,190 records
Snow event in United States, 24 November to 22 December 2025	1,539 records
Snow event in United States, 9 to 29 April 2022	1,475 records
Snow event in United States, 27 September to 17 October 2018	1,247 records
Snow event in United States, 26 September to 23 October 2019	1,194 records
Snow event in United States, 10 to 20 April 2020 (this event)	1,139 records

Every Record Set

20 of 1,139

Every record set or tied during Snow event in United States, 10 to 20 April 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-04-13	St Peter	Record daily snowfall	17.8 cm (7.0 in)	16.5 cm (6.5 in)	116	66 of 100 (Major)
2020-04-14	El Morro Natl Mon	Record snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	82	72 of 100 (Major)
2020-04-16	Genoa 2 W	Record daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	126	75 of 100 (Major)
2020-04-16	Longmont 2 ESE	Record snow depth	25.4 cm (10.0 in)	20.3 cm (8.0 in)	98	66 of 100 (Major)
2020-04-17	Allerton	Record daily snowfall	20.8 cm (8.2 in)	19.0 cm (7.5 in)	110	78 of 100 (Major)
2020-04-17	Seward	Record daily snowfall	15.7 cm (6.2 in)	13.2 cm (5.2 in)	113	78 of 100 (Major)
2020-04-17	Atlantic 1 NE	Record snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	126	72 of 100 (Major)
2020-04-17	Chariton 1 E	Record daily snowfall	18.0 cm (7.1 in)	15.5 cm (6.1 in)	110	72 of 100 (Major)
2020-04-17	Osceola	Record daily snowfall	17.5 cm (6.9 in)	17.5 cm (6.9 in)	120	70 of 100 (Major)
2020-04-17	Shenandoah	Record daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	101	70 of 100 (Major)
2020-04-17	Bradshaw	Record daily snowfall	13.0 cm (5.1 in)	12.5 cm (4.9 in)	98	70 of 100 (Major)
2020-04-17	Nebraska City 2NW	Record daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	71	69 of 100 (Major)
2020-04-17	Osceola	Record daily snowfall	13.5 cm (5.3 in)	13.5 cm (5.3 in)	120	69 of 100 (Major)
2020-04-17	Mt Ayr	Record daily snowfall	26.9 cm (10.6 in)	26.9 cm (10.6 in)	124	68 of 100 (Major)
2020-04-17	Allerton	Record snow depth	27.9 cm (11.0 in)	27.9 cm (11.0 in)	113	67 of 100 (Major)
2020-04-17	Creston 2 SW	Record daily snowfall	18.3 cm (7.2 in)	17.0 cm (6.7 in)	76	67 of 100 (Major)
2020-04-17	Unionville	Record daily snowfall	29.2 cm (11.5 in)	26.7 cm (10.5 in)	110	67 of 100 (Major)
2020-04-17	Clarinda	Record daily snowfall	20.3 cm (8.0 in)	17.3 cm (6.8 in)	110	66 of 100 (Major)
2020-04-17	Galesburg	Record daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	122	65 of 100 (Major)
2020-04-18	Port Allegany	Record snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	71	68 of 100 (Major)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 1,139 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
190	110
132	113
140	126
102	126
155	110
102	82
175	120
152	101
125	98
203	71
135	120
269	124
152	71
279	113
170	76
267	110
203	98
173	110
165	116
140	122
122	126
132	110
127	104
178	119
140	113
117	115
203	119
114	120
203	71
203	71
94	99
102	84
152	111
140	86
152	69
127	99
178	126
165	68
226	73
72	110
175	65
127	113
89	120
153	67
185	50
76	126
76	93
163	67
152	108
73	115
76	120
152	62
152	119
119	108
76	115
178	55
76	117
153	68
152	98
127	93
168	60
112	60
290	40
127	69
102	71
76	116
51	113
127	68
51	96
76	123
204	99
119	78
175	59
86	123
76	126
51	119
102	71
84	126
102	75
107	82
58	110
74	115
102	66
51	98
79	115
152	71
127	115
127	126
135	64
127	101
127	114
127	87
96	104
66	120
127	71
127	85
140	60
51	108
102	77
178	81
68	92
51	99
79	89
51	124
50	72
102	124
127	72
51	115
152	84
59	115
36	116
48	110
158	58
40	123
76	106
102	70
51	113
127	68
117	21
127	76
51	118
43	119
152	81
127	99
51	125
38	104
51	113
127	95
102	75
102	75
203	71
56	126
102	77
203	58
157	18
147	70
160	27
51	99
239	37
53	92
102	124
35	119
64	120
104	71
137	58
152	58
152	57
43	120
58	104
76	92
51	97
46	80
77	67
51	130
38	113
76	113
51	115
102	93
36	126
51	126
102	68
51	99
25	124
25	124
46	97
66	75
102	68
76	92
51	121
51	108
104	47
22	115
51	107
178	71
81	31
76	99
203	72
76	81
25	102
73	80
51	126
36	99
102	70
51	99
51	98
51	83
51	126
102	43
26	115
127	61
102	54
51	124
39	92
51	123
94	59
51	124
25	114
51	119
97	69
51	108

Margin (mm)	Years the old record stood
190	110
132	113
140	126
102	126
155	110
102	82
175	120
152	101
125	98
203	71
135	120
269	124
152	71
279	113
170	76
267	110
203	98
173	110
165	116
140	122
122	126
132	110
127	104
178	119
140	113
117	115
203	119
114	120
203	71
203	71
94	99
102	84
152	111
140	86
152	69
127	99
178	126
165	68
226	73
72	110
175	65
127	113
89	120
153	67
185	50
76	126
76	93
163	67
152	108
73	115
76	120
152	62
152	119
119	108
76	115
178	55
76	117
153	68
152	98
127	93
168	60
112	60
290	40
127	69
102	71
76	116
51	113
127	68
51	96
76	123
204	99
119	78
175	59
86	123
76	126
51	119
102	71
84	126
102	75
107	82
58	110
74	115
102	66
51	98
79	115
152	71
127	115
127	126
135	64
127	101
127	114
127	87
96	104
66	120
127	71
127	85
140	60
51	108
102	77
178	81
68	92
51	99
79	89
51	124
50	72
102	124
127	72
51	115
152	84
59	115
36	116
48	110
158	58
40	123
76	106
102	70
51	113
127	68
117	21
127	76
51	118
43	119
152	81
127	99
51	125
38	104
51	113
127	95
102	75
102	75
203	71
56	126
102	77
203	58
157	18
147	70
160	27
51	99
239	37
53	92
102	124
35	119
64	120
104	71
137	58
152	58
152	57
43	120
58	104
76	92
51	97
46	80
77	67
51	130
38	113
76	113
51	115
102	93
36	126
51	126
102	68
51	99
25	124
25	124
46	97
66	75
102	68
76	92
51	121
51	108
104	47
22	115
51	107
178	71
81	31
76	99
203	72
76	81
25	102
73	80
51	126
36	99
102	70
51	99
51	98
51	83
51	126
102	43
26	115
127	61
102	54
51	124
39	92
51	123
94	59
51	124
25	114
51	119
97	69
51	108

Margin (mm)	Years the old record stood
190	110
132	113
140	126
102	126
155	110
102	82
175	120
152	101
125	98
203	71
135	120
269	124
152	71
279	113
170	76
267	110
203	98
173	110
165	116
140	122
122	126
132	110
127	104
178	119
140	113
117	115
203	119
114	120
203	71
203	71
94	99
102	84
152	111
140	86
152	69
127	99
178	126
165	68
226	73
72	110
175	65
127	113
89	120
153	67
185	50
76	126
76	93
163	67
152	108
73	115
76	120
152	62
152	119
119	108
76	115
178	55
76	117
153	68
152	98
127	93
168	60
112	60
290	40
127	69
102	71
76	116
51	113
127	68
51	96
76	123
204	99
119	78
175	59
86	123
76	126
51	119
102	71
84	126
102	75
107	82
58	110
74	115
102	66
51	98
79	115
152	71
127	115
127	126
135	64
127	101
127	114
127	87
96	104
66	120
127	71
127	85
140	60
51	108
102	77
178	81
68	92
51	99
79	89
51	124
50	72
102	124
127	72
51	115
152	84
59	115
36	116
48	110
158	58
40	123
76	106
102	70
51	113
127	68
117	21
127	76
51	118
43	119
152	81
127	99
51	125
38	104
51	113
127	95
102	75
102	75
203	71
56	126
102	77
203	58
157	18
147	70
160	27
51	99
239	37
53	92
102	124
35	119
64	120
104	71
137	58
152	58
152	57
43	120
58	104
76	92
51	97
46	80
77	67
51	130
38	113
76	113
51	115
102	93
36	126
51	126
102	68
51	99
25	124
25	124
46	97
66	75
102	68
76	92
51	121
51	108
104	47
22	115
51	107
178	71
81	31
76	99
203	72
76	81
25	102
73	80
51	126
36	99
102	70
51	99
51	98
51	83
51	126
102	43
26	115
127	61
102	54
51	124
39	92
51	123
94	59
51	124
25	114
51	119
97	69
51	108