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Built 2026-10-19 (19 October 2026)

Heat wave in Germany and 10 other countries, 20 to 27 December 2018

Heat wave in Germany and 10 other countries, 20 to 27 December 2018: 133 records at 108 stations, peak on 22 December 2018. Closed.

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

Key Facts

  • Heat wave in Germany and 10 other countries, 20 to 27 December 2018 set or tied 133 station records at 108 stations.
  • It ran from 20 December 2018 to 27 December 2018 (8 days) and its peak day was 22 December 2018.
  • Status: closed.
  • Bordeaux-Merignac set a daily record high minimum temperature of 12.7 C (54.9 F) on 22 December 2018.
  • The busiest day was 22 December 2018 with 54 records.
  • The oldest broken record in the ranked list had stood for 108 years.

Footprint

20 to 27 December 2018
Footprint of Heat wave in Germany and 10 other countries, 20 to 27 December 2018 The area covered by Heat wave in Germany and 10 other countries, 20 to 27 December 2018 is outlined, with 17 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Germany and 10 other countries, 20 to 27 December 2018 is outlined, with 17 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Germany and 10 other countries, 20 to 27 December 2018: stations that set records in the event
StationTypeValueDate
Bordeaux-MerignacRecord high minimum temperature12.7 C (54.9 F)2018-12-22
HvarRecord high maximum temperature17.7 C (63.9 F)2018-12-24
Lisboa GeofisicaRecord high maximum temperature19.2 C (66.6 F)2018-12-20
OberstdorfRecord high minimum temperature3.7 C (38.7 F)2018-12-23
Capo BellavistaRecord high maximum temperature23.2 C (73.8 F)2018-12-24
NavacerradaRecord high maximum temperature12.8 C (55.0 F)2018-12-24
PisaRecord high minimum temperature10.6 C (51.1 F)2018-12-22
Dresden-StrehlenRecord high maximum temperature13.0 C (55.4 F)2018-12-21
Santander CmtRecord high minimum temperature14.7 C (58.5 F)2018-12-21
AugsburgRecord high minimum temperature6.7 C (44.1 F)2018-12-22
Basel-MulhouseRecord high minimum temperature10.7 C (51.3 F)2018-12-22
Zuerich/FlunternRecord high minimum temperature7.6 C (45.7 F)2018-12-22
Cap CepetRecord high maximum temperature17.2 C (63.0 F)2018-12-25
Brest-GuipavasRecord high minimum temperature11.6 C (52.9 F)2018-12-21
RheinstettenRecord high maximum temperature12.6 C (54.7 F)2018-12-21
Barcelona/AeropuertoRecord high maximum temperature20.3 C (68.5 F)2018-12-22
MillauRecord high minimum temperature9.2 C (48.6 F)2018-12-23

Records per Day

Peak day 54
Records per day during Heat wave in Germany and 10 other countries, 20 to 27 December 2018 Records set or tied each day from 20 December 2018 to 27 December 2018. The most in one day was 54 on 22 December 2018. 0 15 30 45 60 12-2012-2112-2212-2312-2412-2512-2612-27
Records set or tied each day from 20 December 2018 to 27 December 2018. The most in one day was 54 on 22 December 2018.
Records per day during Heat wave in Germany and 10 other countries, 20 to 27 December 2018
DateRecords
2018-12-201
2018-12-2119
2018-12-2254
2018-12-2334
2018-12-2414
2018-12-255
2018-12-265
2018-12-271

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Germany and 10 other countries, 20 to 27 December 2018 ranked by margin
Basel-Mulhouse, 12-223.3 C (5.9 F)
Capo Bellavista, 12-243.2 C (5.8 F)
Zuerich/Fluntern, 12-221.9 C (3.4 F)
Millau, 12-231.9 C (3.4 F)
Santander Cmt, 12-211.7 C (3.1 F)
Barcelona/Aeropuerto, 12-221.5 C (2.7 F)
Oberstdorf, 12-231.4 C (2.5 F)
Cap Cepet, 12-251.4 C (2.5 F)
Augsburg, 12-221.0 C (1.8 F)
Navacerrada, 12-250.9 C (1.6 F)
Cap Cepet, 12-240.8 C (1.4 F)
Navacerrada, 12-240.8 C (1.4 F)
Lisboa Geofisica, 12-200.7 C (1.3 F)
Pisa, 12-220.6 C (1.1 F)
Dresden-Strehlen, 12-210.5 C (0.9 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 Heat wave in Germany and 10 other countries, 20 to 27 December 2018 133 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 0.01.02.03.04.0 Margin (C) Years the old record stood
133 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 Germany and 10 other countries, 20 to 27 December 2018
Margin (C)Years the old record stood
0.4108
0.460
1.451
3.235
0.747
0.265
0.660
1.047
0.547
1.740
3.328
1.440
1.927
0.147
1.940
0.849
0.347
1.528
0.940
0.840
2.528
0.451
1.544
3.527
0.447
0.147
0.147
1.531
2.028
1.340
2.228
0.149
0.628
0.727
1.628
0.940
1.131
0.731
0.423
0.340
1.516
1.523
1.128
2.516
1.528
0.535
2.916
1.031
1.028
3.316
0.428
2.716
1.623
0.428
1.721
0.627
0.832
2.216
0.216
1.223
3.19
0.127
0.423
3.41
0.223
0.435
0.727
0.223
1.323
1.221
0.427
2.916
1.416
1.516
0.531
0.421
0.816
1.916
1.116
0.54
0.223
0.716
1.39
2.43
1.516
1.49
0.423
1.316
2.216
0.216
0.416
0.423
0.55
0.33
1.416
0.79
1.41
0.116
1.57
1.14
1.13
1.016
0.416
1.016
1.60
1.03
0.53
1.07
1.80
0.216
0.319
1.73
0.63
0.216
0.25
0.27
0.64
0.43
0.35
1.14
0.316
0.35
0.93
0.15
1.13
0.35
0.28
0.24
0.25
0.25
0.15
0.13
0.23

Compared With Other Events

Station records per event
Station records in Heat wave in Germany and 10 other countries, 20 to 27 December 2018 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 Germany and 10 other countries, 20 to 27 December 2018 (this event)133 records

Every Record Set

20 of 133
Every record set or tied during Heat wave in Germany and 10 other countries, 20 to 27 December 2018, in date order
DateStationRecordValueMarginYears stoodSignificance
2018-12-20Lisboa GeofisicaRecord high maximum temperature19.2 C (66.6 F)0.7 C (1.3 F)4727 of 100 (Routine)
2018-12-21Dresden-StrehlenRecord high maximum temperature13.0 C (55.4 F)0.5 C (0.9 F)4723 of 100 (Routine)
2018-12-21Santander CmtRecord high minimum temperature14.7 C (58.5 F)1.7 C (3.1 F)4023 of 100 (Routine)
2018-12-21Brest-GuipavasRecord high minimum temperature11.6 C (52.9 F)0.1 C (0.2 F)4721 of 100 (Routine)
2018-12-21RheinstettenRecord high maximum temperature12.6 C (54.7 F)0.3 C (0.5 F)4721 of 100 (Routine)
2018-12-22Bordeaux-MerignacRecord high minimum temperature12.7 C (54.9 F)0.4 C (0.7 F)10840 of 100 (Notable)
2018-12-22PisaRecord high minimum temperature10.6 C (51.1 F)0.6 C (1.1 F)6025 of 100 (Routine)
2018-12-22AugsburgRecord high minimum temperature6.7 C (44.1 F)1.0 C (1.8 F)4723 of 100 (Routine)
2018-12-22Basel-MulhouseRecord high minimum temperature10.7 C (51.3 F)3.3 C (5.9 F)2822 of 100 (Routine)
2018-12-22Zuerich/FlunternRecord high minimum temperature7.6 C (45.7 F)1.9 C (3.4 F)2722 of 100 (Routine)
2018-12-22Barcelona/AeropuertoRecord high maximum temperature20.3 C (68.5 F)1.5 C (2.7 F)2821 of 100 (Routine)
2018-12-23OberstdorfRecord high minimum temperature3.7 C (38.7 F)1.4 C (2.5 F)5127 of 100 (Routine)
2018-12-23MillauRecord high minimum temperature9.2 C (48.6 F)1.9 C (3.4 F)4021 of 100 (Routine)
2018-12-24HvarRecord high maximum temperature17.7 C (63.9 F)0.4 C (0.7 F)6029 of 100 (Routine)
2018-12-24Capo BellavistaRecord high maximum temperature23.2 C (73.8 F)3.2 C (5.8 F)3527 of 100 (Routine)
2018-12-24NavacerradaRecord high maximum temperature12.8 C (55.0 F)0.2 C (0.4 F)6526 of 100 (Routine)
2018-12-24Cap CepetRecord high minimum temperature13.4 C (56.1 F)0.8 C (1.4 F)4921 of 100 (Routine)
2018-12-24NavacerradaRecord high minimum temperature7.8 C (46.0 F)0.8 C (1.4 F)4021 of 100 (Routine)
2018-12-25Cap CepetRecord high maximum temperature17.2 C (63.0 F)1.4 C (2.5 F)4022 of 100 (Routine)
2018-12-25NavacerradaRecord high minimum temperature8.1 C (46.6 F)0.9 C (1.6 F)4021 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 133 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.