Built 2026-10-19 (19 October 2026)

Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021

Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021: 100 records at 84 stations, peak on 26 May 2021. Closed.

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

Key Facts

  • Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021 set or tied 100 station records at 84 stations.
  • It ran from 19 May 2021 to 28 May 2021 (10 days) and its peak day was 26 May 2021.
  • Status: closed.
  • Wien set a daily record low minimum temperature of 4.7 C (40.5 F) on 26 May 2021.
  • The busiest day was 26 May 2021 with 21 records.
  • The oldest broken record in the ranked list had stood for 143 years.

Footprint

19 to 28 May 2021
Footprint of Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021 The area covered by Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021 is outlined, with 19 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021: stations that set records in the event
StationTypeValueDate
WienRecord low minimum temperature4.7 C (40.5 F)2021-05-26
GrazRecord low minimum temperature2.4 C (36.3 F)2021-05-26
OsijekRecord low minimum temperature5.0 C (41.0 F)2021-05-26
Mittenwald-BuckelwiesenRecord low minimum temperature-1.5 C (29.3 F)2021-05-26
GhediRecord low maximum temperature14.0 C (57.2 F)2021-05-24
TuranyRecord low minimum temperature2.6 C (36.7 F)2021-05-26
KremsmuensterRecord low minimum temperature4.5 C (40.1 F)2021-05-26
Hayling IslandRecord low minimum temperature1.0 C (33.8 F)2021-05-28
WaddingtonRecord low minimum temperature2.9 C (37.2 F)2021-05-26
ZaragozaRecord low maximum temperature14.6 C (58.3 F)2021-05-23
VarazdinRecord low minimum temperature3.9 C (39.0 F)2021-05-26
AberporthRecord low minimum temperature4.2 C (39.6 F)2021-05-27
GogerddanRecord low maximum temperature10.1 C (50.2 F)2021-05-20
Plymouth: MountbattenRecord low minimum temperature4.7 C (40.5 F)2021-05-23
FaskallyRecord low maximum temperature8.9 C (48.0 F)2021-05-23
KinlocheweRecord low maximum temperature9.4 C (48.9 F)2021-05-20
HillsboroughRecord low maximum temperature10.0 C (50.0 F)2021-05-19
BudeRecord low maximum temperature11.5 C (52.7 F)2021-05-21
HelgolandRecord low maximum temperature10.2 C (50.4 F)2021-05-26

Records per Day

Peak day 21
Records per day during Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021 Records set or tied each day from 19 May 2021 to 28 May 2021. The most in one day was 21 on 26 May 2021. 0 6 13 19 25 05-1905-2005-2105-2205-2305-2405-2505-2605-2705-28
Records set or tied each day from 19 May 2021 to 28 May 2021. The most in one day was 21 on 26 May 2021.
Records per day during Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021
DateRecords
2021-05-193
2021-05-208
2021-05-214
2021-05-226
2021-05-2315
2021-05-2413
2021-05-2514
2021-05-2621
2021-05-2710
2021-05-286

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021 ranked by margin
Ghedi, 05-245.0 C (9.0 F)
Graz, 05-262.9 C (5.2 F)
Mittenwald-Buckelwiesen, 05-261.9 C (3.4 F)
Faskally, 05-231.7 C (3.1 F)
Gogerddan, 05-201.6 C (2.9 F)
Wien, 05-261.3 C (2.3 F)
Turany, 05-261.3 C (2.3 F)
Hayling Island, 05-281.2 C (2.2 F)
Zaragoza, 05-231.0 C (1.8 F)
Varazdin, 05-260.6 C (1.1 F)
Kinlochewe, 05-200.6 C (1.1 F)
Hillsborough, 05-190.6 C (1.1 F)
Kremsmuenster, 05-260.5 C (0.9 F)
Aberporth, 05-270.5 C (0.9 F)
Waddington, 05-260.4 C (0.7 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 Kingdom and 11 other countries, 19 to 28 May 2021 100 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 0.01.32.53.85.0 Margin (C) Years the old record stood
100 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 Kingdom and 11 other countries, 19 to 28 May 2021
Margin (C)Years the old record stood
1.3143
2.983
0.2110
1.959
1.360
5.046
0.559
1.260
0.464
0.660
1.062
0.560
1.652
0.460
1.750
0.659
0.350
0.158
0.258
0.652
0.159
1.446
0.652
1.142
0.147
0.252
0.252
1.048
0.924
1.438
0.838
2.136
0.940
0.943
0.836
0.247
0.147
0.442
0.942
1.238
0.630
0.520
1.138
1.330
1.136
0.634
0.927
0.534
0.624
0.327
1.324
0.243
0.434
0.140
0.836
0.438
0.934
0.138
0.330
1.911
0.834
0.236
0.327
0.730
0.930
1.924
0.630
0.130
1.127
0.224
0.427
0.230
0.130
0.527
0.330
0.924
1.120
1.124
0.130
0.323
0.88
0.424
0.68
0.327
0.816
0.327
1.58
0.46
0.316
1.015
0.115
0.115
1.415
0.116
0.58
1.66
1.18
0.18
0.74
0.48

Compared With Other Events

Station records per event
Station records in Cold outbreak in United Kingdom and 11 other countries, 19 to 28 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 Kingdom and 11 other countries, 19 to 28 May 2021 (this event)100 records

Every Record Set

20 of 100
Every record set or tied during Cold outbreak in United Kingdom and 11 other countries, 19 to 28 May 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-05-19HillsboroughRecord low maximum temperature10.0 C (50.0 F)0.6 C (1.1 F)5223 of 100 (Routine)
2021-05-20GogerddanRecord low maximum temperature10.1 C (50.2 F)1.6 C (2.9 F)5225 of 100 (Routine)
2021-05-20KinlocheweRecord low maximum temperature9.4 C (48.9 F)0.6 C (1.1 F)5924 of 100 (Routine)
2021-05-20Plymouth: MountbattenRecord low maximum temperature11.9 C (53.4 F)0.1 C (0.2 F)5823 of 100 (Routine)
2021-05-21BudeRecord low maximum temperature11.5 C (52.7 F)0.2 C (0.4 F)5823 of 100 (Routine)
2021-05-23ZaragozaRecord low maximum temperature14.6 C (58.3 F)1.0 C (1.8 F)6226 of 100 (Routine)
2021-05-23Plymouth: MountbattenRecord low minimum temperature4.7 C (40.5 F)0.4 C (0.7 F)6025 of 100 (Routine)
2021-05-23FaskallyRecord low maximum temperature8.9 C (48.0 F)1.7 C (3.1 F)5025 of 100 (Routine)
2021-05-24GhediRecord low maximum temperature14.0 C (57.2 F)5.0 C (9.0 F)4629 of 100 (Routine)
2021-05-26WienRecord low minimum temperature4.7 C (40.5 F)1.3 C (2.3 F)14343 of 100 (Notable)
2021-05-26GrazRecord low minimum temperature2.4 C (36.3 F)2.9 C (5.2 F)8342 of 100 (Notable)
2021-05-26OsijekRecord low minimum temperature5.0 C (41.0 F)0.2 C (0.4 F)11040 of 100 (Notable)
2021-05-26Mittenwald-BuckelwiesenRecord low minimum temperature-1.5 C (29.3 F)1.9 C (3.4 F)5930 of 100 (Routine)
2021-05-26TuranyRecord low minimum temperature2.6 C (36.7 F)1.3 C (2.3 F)6029 of 100 (Routine)
2021-05-26KremsmuensterRecord low minimum temperature4.5 C (40.1 F)0.5 C (0.9 F)5928 of 100 (Routine)
2021-05-26WaddingtonRecord low minimum temperature2.9 C (37.2 F)0.4 C (0.7 F)6427 of 100 (Routine)
2021-05-26VarazdinRecord low minimum temperature3.9 C (39.0 F)0.6 C (1.1 F)6026 of 100 (Routine)
2021-05-26HelgolandRecord low maximum temperature10.2 C (50.4 F)0.3 C (0.5 F)5023 of 100 (Routine)
2021-05-27AberporthRecord low minimum temperature4.2 C (39.6 F)0.5 C (0.9 F)6026 of 100 (Routine)
2021-05-28Hayling IslandRecord low minimum temperature1.0 C (33.8 F)1.2 C (2.2 F)6028 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 100 records the event counts. The counts above use the full total.

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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.