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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Cold outbreak in United States, 2 to 25 May 2021

Cold outbreak in United States, 2 to 25 May 2021: 1,082 records at 794 stations, peak on 13 May 2021. Closed.

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

Key Facts

  • Cold outbreak in United States, 2 to 25 May 2021 set or tied 1,082 station records at 794 stations.
  • It ran from 2 May 2021 to 25 May 2021 (24 days) and its peak day was 13 May 2021.
  • Status: closed.
  • Rome set a daily record low maximum temperature of 13.9 C (57.0 F) on 13 May 2021.
  • The busiest day was 13 May 2021 with 219 records.
  • The oldest broken record in the ranked list had stood for 125 years.

Footprint

2 to 25 May 2021
Footprint of Cold outbreak in United States, 2 to 25 May 2021 The area covered by Cold outbreak in United States, 2 to 25 May 2021 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in United States, 2 to 25 May 2021 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in United States, 2 to 25 May 2021: stations that set records in the event
StationTypeValueDate
RomeRecord low maximum temperature13.9 C (57.0 F)2021-05-13
MorgantonRecord low maximum temperature11.7 C (53.1 F)2021-05-13
CherawRecord low maximum temperature12.8 C (55.0 F)2021-05-13
Clemson UNIVRecord low maximum temperature15.0 C (59.0 F)2021-05-13
Fayetteville (Pwc)Record low maximum temperature11.7 C (53.1 F)2021-05-13
Waynesville 1 ERecord low maximum temperature8.9 C (48.0 F)2021-05-13
Winthrop UNIVRecord low maximum temperature11.7 C (53.1 F)2021-05-13
ToccoaRecord low maximum temperature15.0 C (59.0 F)2021-05-13
Newnan 7 WNWRecord low maximum temperature15.0 C (59.0 F)2021-05-13
CullowheeRecord low maximum temperature12.2 C (54.0 F)2021-05-13
Hendersonville 1 NERecord low maximum temperature9.4 C (48.9 F)2021-05-13
Bay City Wtr WksRecord low maximum temperature20.6 C (69.1 F)2021-05-20
RugbyRecord low minimum temperature-7.8 C (18.0 F)2021-05-08
SolomonsRecord low minimum temperature3.3 C (37.9 F)2021-05-12
WaynesboroRecord low maximum temperature15.0 C (59.0 F)2021-05-11
Clayton 1 SSWRecord low maximum temperature13.9 C (57.0 F)2021-05-13
Palacios Muni APRecord low maximum temperature21.7 C (71.1 F)2021-05-19
Bloomington Indiana UNIVRecord low minimum temperature-2.2 C (28.0 F)2021-05-07
Elgin WaterRecord low maximum temperature4.4 C (39.9 F)2021-05-12
Franklin 3 NWRecord low maximum temperature22.2 C (72.0 F)2021-05-12

Records per Day

Peak day 219
Records per day during Cold outbreak in United States, 2 to 25 May 2021 Records set or tied each day from 2 May 2021 to 25 May 2021. The most in one day was 219 on 13 May 2021. 0 63 125 188 250 05-0205-0505-0805-1105-1405-1705-2005-23
Records set or tied each day from 2 May 2021 to 25 May 2021. The most in one day was 219 on 13 May 2021.
Records per day during Cold outbreak in United States, 2 to 25 May 2021
DateRecords
2021-05-021
2021-05-0310
2021-05-0426
2021-05-0531
2021-05-0620
2021-05-0719
2021-05-0879
2021-05-0955
2021-05-1093
2021-05-11165
2021-05-12170
2021-05-13219
2021-05-1459
2021-05-1546
2021-05-1615
2021-05-179
2021-05-184
2021-05-1912
2021-05-2023
2021-05-213
2021-05-222
2021-05-239
2021-05-248
2021-05-254

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in United States, 2 to 25 May 2021 ranked by margin
Rome, 05-136.1 C (11.0 F)
Hendersonville 1 NE, 05-135.6 C (10.1 F)
Morganton, 05-135.5 C (9.9 F)
Fayetteville (Pwc), 05-135.5 C (9.9 F)
Cheraw, 05-135.0 C (9.0 F)
Clemson UNIV, 05-134.4 C (7.9 F)
Waynesville 1 E, 05-134.4 C (7.9 F)
Bay City Wtr Wks, 05-204.4 C (7.9 F)
Winthrop UNIV, 05-133.9 C (7.0 F)
Toccoa, 05-133.9 C (7.0 F)
Cullowhee, 05-133.4 C (6.1 F)
Rugby, 05-083.4 C (6.1 F)
Newnan 7 WNW, 05-133.3 C (5.9 F)
Clayton 1 SSW, 05-133.3 C (5.9 F)
Palacios Muni AP, 05-193.3 C (5.9 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Cold outbreak in United States, 2 to 25 May 2021 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. 0 38 75 113 150 0.02.04.06.08.0 Margin (C) Years the old record stood
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 Cold outbreak in United States, 2 to 25 May 2021
Margin (C)Years the old record stood
6.1102
5.5104
5.0104
4.4104
5.596
4.4104
3.9104
3.9114
3.3114
3.4104
5.683
4.468
2.3108
3.4116
3.390
2.896
3.376
2.8107
3.396
1.1104
1.7102
7.258
6.760
2.767
1.1116
1.7125
1.7111
2.296
1.6116
7.260
1.7100
1.1104
1.6102
1.7112
1.1107
1.7111
1.6108
1.1106
1.1115
1.796
1.6115
1.1114
3.383
6.260
1.1116
1.1102
1.1104
1.1107
1.1111
1.1104
0.5102
0.5104
0.6104
0.5107
0.6104
1.198
0.6115
0.5125
1.196
1.296
1.196
0.6100
1.2115
0.6115
0.6120
0.6103
0.6104
0.5120
1.196
0.6104
1.196
1.792
0.5112
1.292
1.795
2.280
0.599
0.698
0.696
2.883
1.792
5.072
0.596
0.692
3.975
2.376
1.688
6.132
2.871
1.192
0.590
0.692
3.960
1.155
5.660
4.458
0.596
3.967
6.151
5.068
1.180
1.160
0.692
2.867
1.682
3.375
4.448
1.183
1.778
0.592
5.058
0.688
4.460
2.375
3.960
3.962
2.267
1.778
1.675
3.358
0.682
0.683
0.682
1.767
1.767
3.350
1.175
3.955
3.967
0.676
1.768
3.351
1.767
1.767
2.367
1.267
0.675
2.367
7.250
2.758
0.576
2.860
1.267
1.267
1.167
0.582
1.667
2.260
2.875
1.275
3.948
2.258
3.955
0.672
0.670
1.168
0.575
2.268
2.267
2.367
2.258
3.358
6.130
1.667
1.167
3.456
0.575
2.267
0.671
1.170
6.652
0.667
0.567
0.667
0.667
0.676
1.167
1.168
3.432
1.160
1.167
0.667
2.260
4.448
1.168
4.452
6.732
1.167
1.658
0.567
2.867
0.567
0.667
3.356
0.667
0.567
2.267
1.770
1.172
2.867

Compared With Other Events

Station records per event
Station records in Cold outbreak in United States, 2 to 25 May 2021 compared with similar events
Cold outbreak in United States and Mexico, 6 February to 5 March 202112,118 records
Cold outbreak in United States and Mexico, 13 October to 5 November 20209,841 records
Cold outbreak in United States and Mexico, 23 December 2017 to 8 January 20188,263 records
Cold outbreak in United States and Mexico, 3 to 23 January 20247,675 records
Cold outbreak in United States, 15 January to 10 February 20265,568 records
Cold outbreak in United States, 2 to 25 May 2021 (this event)1,082 records

Every Record Set

20 of 1,082
Every record set or tied during Cold outbreak in United States, 2 to 25 May 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-05-07Bloomington Indiana UNIVRecord low minimum temperature-2.2 C (28.0 F)3.3 C (5.9 F)9644 of 100 (Notable)
2021-05-08RugbyRecord low minimum temperature-7.8 C (18.0 F)3.4 C (6.1 F)11646 of 100 (Notable)
2021-05-11WaynesboroRecord low maximum temperature15.0 C (59.0 F)2.8 C (5.0 F)9645 of 100 (Notable)
2021-05-12SolomonsRecord low minimum temperature3.3 C (37.9 F)2.3 C (4.1 F)10846 of 100 (Notable)
2021-05-12Elgin WaterRecord low maximum temperature4.4 C (39.9 F)2.8 C (5.0 F)10744 of 100 (Notable)
2021-05-12Franklin 3 NWRecord low maximum temperature22.2 C (72.0 F)1.1 C (2.0 F)10444 of 100 (Notable)
2021-05-13RomeRecord low maximum temperature13.9 C (57.0 F)6.1 C (11.0 F)10255 of 100 (Notable)
2021-05-13MorgantonRecord low maximum temperature11.7 C (53.1 F)5.5 C (9.9 F)10452 of 100 (Notable)
2021-05-13CherawRecord low maximum temperature12.8 C (55.0 F)5.0 C (9.0 F)10451 of 100 (Notable)
2021-05-13Clemson UNIVRecord low maximum temperature15.0 C (59.0 F)4.4 C (7.9 F)10451 of 100 (Notable)
2021-05-13Fayetteville (Pwc)Record low maximum temperature11.7 C (53.1 F)5.5 C (9.9 F)9650 of 100 (Notable)
2021-05-13Waynesville 1 ERecord low maximum temperature8.9 C (48.0 F)4.4 C (7.9 F)10450 of 100 (Notable)
2021-05-13Winthrop UNIVRecord low maximum temperature11.7 C (53.1 F)3.9 C (7.0 F)10450 of 100 (Notable)
2021-05-13ToccoaRecord low maximum temperature15.0 C (59.0 F)3.9 C (7.0 F)11449 of 100 (Notable)
2021-05-13Newnan 7 WNWRecord low maximum temperature15.0 C (59.0 F)3.3 C (5.9 F)11448 of 100 (Notable)
2021-05-13CullowheeRecord low maximum temperature12.2 C (54.0 F)3.4 C (6.1 F)10448 of 100 (Notable)
2021-05-13Hendersonville 1 NERecord low maximum temperature9.4 C (48.9 F)5.6 C (10.1 F)8347 of 100 (Notable)
2021-05-13Clayton 1 SSWRecord low maximum temperature13.9 C (57.0 F)3.3 C (5.9 F)9045 of 100 (Notable)
2021-05-19Palacios Muni APRecord low maximum temperature21.7 C (71.1 F)3.3 C (5.9 F)7645 of 100 (Notable)
2021-05-20Bay City Wtr WksRecord low maximum temperature20.6 C (69.1 F)4.4 C (7.9 F)6847 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 1,082 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.