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Built 2026-10-19 (19 October 2026)

Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021

Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021: 276 records at 209 stations, peak on 15 December 2021. Closed.

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

Key Facts

  • Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 set or tied 276 station records at 209 stations.
  • It ran from 10 December 2021 to 19 December 2021 (10 days) and its peak day was 15 December 2021.
  • Status: closed.
  • Hamburg Fuhlsbuettel set a daily record high minimum temperature of 8.4 C (47.1 F) on 15 December 2021.
  • The busiest day was 15 December 2021 with 65 records.
  • The oldest broken record in the ranked list had stood for 108 years.

Footprint

10 to 19 December 2021
Footprint of Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 The area covered by Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 is outlined, with 18 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021: stations that set records in the event
StationTypeValueDate
OxfordRecord high minimum temperature10.8 C (51.4 F)2021-12-13
Hamburg FuhlsbuettelRecord high minimum temperature8.4 C (47.1 F)2021-12-15
ConnaughtRecord high maximum temperature11.5 C (52.7 F)2021-12-12
CraibstoneRecord high maximum temperature13.1 C (55.6 F)2021-12-15
LjusnedalRecord high maximum temperature6.8 C (44.2 F)2021-12-18
Murcia/AlcantarillaRecord high minimum temperature13.6 C (56.5 F)2021-12-11
Tangier CityRecord high maximum temperature22.4 C (72.3 F)2021-12-12
MontabaurRecord high minimum temperature5.6 C (42.1 F)2021-12-14
BodenRecord high maximum temperature5.2 C (41.4 F)2021-12-18
FokstuaRecord high minimum temperature-1.0 C (30.2 F)2021-12-15
ManstonRecord high minimum temperature9.6 C (49.3 F)2021-12-15
Trondheim - VollRecord high maximum temperature8.9 C (48.0 F)2021-12-18
EggegrundRecord high maximum temperature8.1 C (46.6 F)2021-12-18
PortoRecord high maximum temperature18.6 C (65.5 F)2021-12-13
TallinnRecord high minimum temperature2.7 C (36.9 F)2021-12-16
Stavanger - ValandRecord high maximum temperature8.7 C (47.7 F)2021-12-13
GulbeneRecord high minimum temperature2.5 C (36.5 F)2021-12-16
Orskar_ARecord high maximum temperature6.9 C (44.4 F)2021-12-18

Records per Day

Peak day 65
Records per day during Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 Records set or tied each day from 10 December 2021 to 19 December 2021. The most in one day was 65 on 15 December 2021. 0 20 40 60 80 12-1012-1112-1212-1312-1412-1512-1612-1712-1812-19
Records set or tied each day from 10 December 2021 to 19 December 2021. The most in one day was 65 on 15 December 2021.
Records per day during Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021
DateRecords
2021-12-106
2021-12-1122
2021-12-1211
2021-12-1335
2021-12-1416
2021-12-1565
2021-12-1635
2021-12-1718
2021-12-1858
2021-12-1910

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 ranked by margin
Murcia/Alcantarilla, 12-113.0 C (5.4 F)
Tangier City, 12-122.4 C (4.3 F)
Boden, 12-181.9 C (3.4 F)
Gulbene, 12-161.4 C (2.5 F)
Eggegrund, 12-181.1 C (2.0 F)
Fokstua, 12-151.0 C (1.8 F)
Trondheim - Voll, 12-180.9 C (1.6 F)
Oxford, 12-130.8 C (1.4 F)
Ljusnedal, 12-180.8 C (1.4 F)
Manston, 12-150.7 C (1.3 F)
Hamburg Fuhlsbuettel, 12-150.6 C (1.1 F)
Montabaur, 12-140.6 C (1.1 F)
Oxford, 12-110.6 C (1.1 F)
Tallinn, 12-160.5 C (0.9 F)
Connaught, 12-120.4 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 Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 276 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 30 60 90 120 0.01.32.53.85.0 Margin (C) Years the old record stood
276 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 Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021
Margin (C)Years the old record stood
0.6108
0.8103
0.490
0.888
0.390
3.060
0.680
2.444
1.975
0.967
1.068
1.167
0.664
0.768
0.571
0.270
0.270
1.464
0.172
0.467
4.244
1.560
0.367
0.460
0.964
0.960
1.560
1.360
0.860
0.260
0.860
0.750
0.560
1.050
0.950
1.150
0.450
0.650
2.048
0.148
1.940
0.259
1.444
0.550
0.843
0.548
3.234
0.850
2.527
1.440
0.448
0.736
1.248
1.444
0.350
0.848
2.227
4.10
0.250
1.148
0.150
0.150
0.236
0.748
0.944
0.546
0.248
0.248
0.544
2.023
1.827
0.348
2.732
2.534
0.436
1.042
0.446
1.520
0.340
0.240
0.440
2.523
0.240
0.740
0.640
0.640
1.236
0.846
0.132
0.536
0.140
2.718
0.127
1.627
0.136
0.51
2.226
1.036
0.140
0.140
0.340
1.932
0.336
3.623
0.440
0.540
0.440
0.436
1.720
0.636
0.534
0.436
0.936
0.927
1.036
0.531
1.923
1.228
0.627
1.023
1.523
0.739
0.620
1.823
0.628
0.236
0.240
0.536
0.628
0.532
0.523
1.523
0.636
0.532
1.236
0.528
0.818
1.423
0.923
1.023
0.923
0.116
0.536
1.020
2.76
0.432
0.120
0.120
0.136
0.836
1.615
0.620
0.723
0.720
3.118
1.06
0.423
1.76
2.618
2.023
0.720
0.227
0.127
0.136
0.434
2.123
1.86
0.215
0.223
3.26
1.816
0.818
0.618
0.718
0.612
0.923
0.231
0.119
0.427
0.520
0.223
2.123
1.223
0.223
0.420
0.515
2.00
0.223
0.718
0.518
3.36
0.918
0.723
0.523
0.823
0.518
0.320
0.420
0.320
0.816

Compared With Other Events

Station records per event
Station records in Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 20249,869 records
Heat wave in United States, 28 January to 24 February 20266,528 records
Heat wave in United States and Mexico, 24 May to 19 June 20205,047 records
Heat wave in United States and Mexico, 26 March to 17 April 20213,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 20223,626 records
Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021 (this event)276 records

Every Record Set

20 of 276
Every record set or tied during Heat wave in United Kingdom and 17 other countries, 10 to 19 December 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-12-11Murcia/AlcantarillaRecord high minimum temperature13.6 C (56.5 F)3.0 C (5.4 F)6034 of 100 (Routine)
2021-12-11OxfordRecord high maximum temperature14.5 C (58.1 F)0.6 C (1.1 F)6430 of 100 (Routine)
2021-12-12ConnaughtRecord high maximum temperature11.5 C (52.7 F)0.4 C (0.7 F)9037 of 100 (Notable)
2021-12-12Tangier CityRecord high maximum temperature22.4 C (72.3 F)2.4 C (4.3 F)4433 of 100 (Routine)
2021-12-13OxfordRecord high minimum temperature10.8 C (51.4 F)0.8 C (1.4 F)10341 of 100 (Notable)
2021-12-13PortoRecord high maximum temperature18.6 C (65.5 F)0.2 C (0.4 F)7029 of 100 (Routine)
2021-12-13Stavanger - ValandRecord high maximum temperature8.7 C (47.7 F)0.1 C (0.2 F)7228 of 100 (Routine)
2021-12-14MontabaurRecord high minimum temperature5.6 C (42.1 F)0.6 C (1.1 F)8033 of 100 (Routine)
2021-12-15Hamburg FuhlsbuettelRecord high minimum temperature8.4 C (47.1 F)0.6 C (1.1 F)10841 of 100 (Notable)
2021-12-15CraibstoneRecord high maximum temperature13.1 C (55.6 F)0.3 C (0.5 F)9036 of 100 (Notable)
2021-12-15FokstuaRecord high minimum temperature-1.0 C (30.2 F)1.0 C (1.8 F)6830 of 100 (Routine)
2021-12-15ManstonRecord high minimum temperature9.6 C (49.3 F)0.7 C (1.3 F)6830 of 100 (Routine)
2021-12-15PortoRecord high maximum temperature18.9 C (66.0 F)0.2 C (0.4 F)7029 of 100 (Routine)
2021-12-16TallinnRecord high minimum temperature2.7 C (36.9 F)0.5 C (0.9 F)7129 of 100 (Routine)
2021-12-16GulbeneRecord high minimum temperature2.5 C (36.5 F)1.4 C (2.5 F)6428 of 100 (Routine)
2021-12-18LjusnedalRecord high maximum temperature6.8 C (44.2 F)0.8 C (1.4 F)8836 of 100 (Notable)
2021-12-18BodenRecord high maximum temperature5.2 C (41.4 F)1.9 C (3.4 F)7531 of 100 (Routine)
2021-12-18Trondheim - VollRecord high maximum temperature8.9 C (48.0 F)0.9 C (1.6 F)6730 of 100 (Routine)
2021-12-18EggegrundRecord high maximum temperature8.1 C (46.6 F)1.1 C (2.0 F)6730 of 100 (Routine)
2021-12-18Orskar_ARecord high maximum temperature6.9 C (44.4 F)0.4 C (0.7 F)6728 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 276 records the event counts. The counts above use the full total.

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.