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| Station | Type | Value | Date |
|---|---|---|---|
| Bordeaux-Merignac | Record high minimum temperature | 12.7 C (54.9 F) | 2018-12-22 |
| Hvar | Record high maximum temperature | 17.7 C (63.9 F) | 2018-12-24 |
| Lisboa Geofisica | Record high maximum temperature | 19.2 C (66.6 F) | 2018-12-20 |
| Oberstdorf | Record high minimum temperature | 3.7 C (38.7 F) | 2018-12-23 |
| Capo Bellavista | Record high maximum temperature | 23.2 C (73.8 F) | 2018-12-24 |
| Navacerrada | Record high maximum temperature | 12.8 C (55.0 F) | 2018-12-24 |
| Pisa | Record high minimum temperature | 10.6 C (51.1 F) | 2018-12-22 |
| Dresden-Strehlen | Record high maximum temperature | 13.0 C (55.4 F) | 2018-12-21 |
| Santander Cmt | Record high minimum temperature | 14.7 C (58.5 F) | 2018-12-21 |
| Augsburg | Record high minimum temperature | 6.7 C (44.1 F) | 2018-12-22 |
| Basel-Mulhouse | Record high minimum temperature | 10.7 C (51.3 F) | 2018-12-22 |
| Zuerich/Fluntern | Record high minimum temperature | 7.6 C (45.7 F) | 2018-12-22 |
| Cap Cepet | Record high maximum temperature | 17.2 C (63.0 F) | 2018-12-25 |
| Brest-Guipavas | Record high minimum temperature | 11.6 C (52.9 F) | 2018-12-21 |
| Rheinstetten | Record high maximum temperature | 12.6 C (54.7 F) | 2018-12-21 |
| Barcelona/Aeropuerto | Record high maximum temperature | 20.3 C (68.5 F) | 2018-12-22 |
| Millau | Record high minimum temperature | 9.2 C (48.6 F) | 2018-12-23 |
Records per Day
Peak day 54| Date | Records |
|---|---|
| 2018-12-20 | 1 |
| 2018-12-21 | 19 |
| 2018-12-22 | 54 |
| 2018-12-23 | 34 |
| 2018-12-24 | 14 |
| 2018-12-25 | 5 |
| 2018-12-26 | 5 |
| 2018-12-27 | 1 |
Top Records by Margin
Margin over the record replaced| Basel-Mulhouse, 12-22 | |
|---|---|
| Capo Bellavista, 12-24 | |
| Zuerich/Fluntern, 12-22 | |
| Millau, 12-23 | |
| Santander Cmt, 12-21 | |
| Barcelona/Aeropuerto, 12-22 | |
| Oberstdorf, 12-23 | |
| Cap Cepet, 12-25 | |
| Augsburg, 12-22 | |
| Navacerrada, 12-25 | |
| Cap Cepet, 12-24 | |
| Navacerrada, 12-24 | |
| Lisboa Geofisica, 12-20 | |
| Pisa, 12-22 | |
| Dresden-Strehlen, 12-21 |
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 (C) | Years the old record stood |
|---|---|
| 0.4 | 108 |
| 0.4 | 60 |
| 1.4 | 51 |
| 3.2 | 35 |
| 0.7 | 47 |
| 0.2 | 65 |
| 0.6 | 60 |
| 1.0 | 47 |
| 0.5 | 47 |
| 1.7 | 40 |
| 3.3 | 28 |
| 1.4 | 40 |
| 1.9 | 27 |
| 0.1 | 47 |
| 1.9 | 40 |
| 0.8 | 49 |
| 0.3 | 47 |
| 1.5 | 28 |
| 0.9 | 40 |
| 0.8 | 40 |
| 2.5 | 28 |
| 0.4 | 51 |
| 1.5 | 44 |
| 3.5 | 27 |
| 0.4 | 47 |
| 0.1 | 47 |
| 0.1 | 47 |
| 1.5 | 31 |
| 2.0 | 28 |
| 1.3 | 40 |
| 2.2 | 28 |
| 0.1 | 49 |
| 0.6 | 28 |
| 0.7 | 27 |
| 1.6 | 28 |
| 0.9 | 40 |
| 1.1 | 31 |
| 0.7 | 31 |
| 0.4 | 23 |
| 0.3 | 40 |
| 1.5 | 16 |
| 1.5 | 23 |
| 1.1 | 28 |
| 2.5 | 16 |
| 1.5 | 28 |
| 0.5 | 35 |
| 2.9 | 16 |
| 1.0 | 31 |
| 1.0 | 28 |
| 3.3 | 16 |
| 0.4 | 28 |
| 2.7 | 16 |
| 1.6 | 23 |
| 0.4 | 28 |
| 1.7 | 21 |
| 0.6 | 27 |
| 0.8 | 32 |
| 2.2 | 16 |
| 0.2 | 16 |
| 1.2 | 23 |
| 3.1 | 9 |
| 0.1 | 27 |
| 0.4 | 23 |
| 3.4 | 1 |
| 0.2 | 23 |
| 0.4 | 35 |
| 0.7 | 27 |
| 0.2 | 23 |
| 1.3 | 23 |
| 1.2 | 21 |
| 0.4 | 27 |
| 2.9 | 16 |
| 1.4 | 16 |
| 1.5 | 16 |
| 0.5 | 31 |
| 0.4 | 21 |
| 0.8 | 16 |
| 1.9 | 16 |
| 1.1 | 16 |
| 0.5 | 4 |
| 0.2 | 23 |
| 0.7 | 16 |
| 1.3 | 9 |
| 2.4 | 3 |
| 1.5 | 16 |
| 1.4 | 9 |
| 0.4 | 23 |
| 1.3 | 16 |
| 2.2 | 16 |
| 0.2 | 16 |
| 0.4 | 16 |
| 0.4 | 23 |
| 0.5 | 5 |
| 0.3 | 3 |
| 1.4 | 16 |
| 0.7 | 9 |
| 1.4 | 1 |
| 0.1 | 16 |
| 1.5 | 7 |
| 1.1 | 4 |
| 1.1 | 3 |
| 1.0 | 16 |
| 0.4 | 16 |
| 1.0 | 16 |
| 1.6 | 0 |
| 1.0 | 3 |
| 0.5 | 3 |
| 1.0 | 7 |
| 1.8 | 0 |
| 0.2 | 16 |
| 0.3 | 19 |
| 1.7 | 3 |
| 0.6 | 3 |
| 0.2 | 16 |
| 0.2 | 5 |
| 0.2 | 7 |
| 0.6 | 4 |
| 0.4 | 3 |
| 0.3 | 5 |
| 1.1 | 4 |
| 0.3 | 16 |
| 0.3 | 5 |
| 0.9 | 3 |
| 0.1 | 5 |
| 1.1 | 3 |
| 0.3 | 5 |
| 0.2 | 8 |
| 0.2 | 4 |
| 0.2 | 5 |
| 0.2 | 5 |
| 0.1 | 5 |
| 0.1 | 3 |
| 0.2 | 3 |
Compared With Other Events
Station records per event| Heat wave in United States and Mexico, 16 January to 14 February 2024 | |
|---|---|
| Heat wave in United States, 28 January to 24 February 2026 | |
| Heat wave in United States and Mexico, 24 May to 19 June 2020 | |
| Heat wave in United States and Mexico, 26 March to 17 April 2021 | |
| Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022 | |
| Heat wave in Germany and 10 other countries, 20 to 27 December 2018 (this event) |
Every Record Set
20 of 133| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2018-12-20 | Lisboa Geofisica | Record high maximum temperature | 19.2 C (66.6 F) | 0.7 C (1.3 F) | 47 | 27 of 100 (Routine) |
| 2018-12-21 | Dresden-Strehlen | Record high maximum temperature | 13.0 C (55.4 F) | 0.5 C (0.9 F) | 47 | 23 of 100 (Routine) |
| 2018-12-21 | Santander Cmt | Record high minimum temperature | 14.7 C (58.5 F) | 1.7 C (3.1 F) | 40 | 23 of 100 (Routine) |
| 2018-12-21 | Brest-Guipavas | Record high minimum temperature | 11.6 C (52.9 F) | 0.1 C (0.2 F) | 47 | 21 of 100 (Routine) |
| 2018-12-21 | Rheinstetten | Record high maximum temperature | 12.6 C (54.7 F) | 0.3 C (0.5 F) | 47 | 21 of 100 (Routine) |
| 2018-12-22 | Bordeaux-Merignac | Record high minimum temperature | 12.7 C (54.9 F) | 0.4 C (0.7 F) | 108 | 40 of 100 (Notable) |
| 2018-12-22 | Pisa | Record high minimum temperature | 10.6 C (51.1 F) | 0.6 C (1.1 F) | 60 | 25 of 100 (Routine) |
| 2018-12-22 | Augsburg | Record high minimum temperature | 6.7 C (44.1 F) | 1.0 C (1.8 F) | 47 | 23 of 100 (Routine) |
| 2018-12-22 | Basel-Mulhouse | Record high minimum temperature | 10.7 C (51.3 F) | 3.3 C (5.9 F) | 28 | 22 of 100 (Routine) |
| 2018-12-22 | Zuerich/Fluntern | Record high minimum temperature | 7.6 C (45.7 F) | 1.9 C (3.4 F) | 27 | 22 of 100 (Routine) |
| 2018-12-22 | Barcelona/Aeropuerto | Record high maximum temperature | 20.3 C (68.5 F) | 1.5 C (2.7 F) | 28 | 21 of 100 (Routine) |
| 2018-12-23 | Oberstdorf | Record high minimum temperature | 3.7 C (38.7 F) | 1.4 C (2.5 F) | 51 | 27 of 100 (Routine) |
| 2018-12-23 | Millau | Record high minimum temperature | 9.2 C (48.6 F) | 1.9 C (3.4 F) | 40 | 21 of 100 (Routine) |
| 2018-12-24 | Hvar | Record high maximum temperature | 17.7 C (63.9 F) | 0.4 C (0.7 F) | 60 | 29 of 100 (Routine) |
| 2018-12-24 | Capo Bellavista | Record high maximum temperature | 23.2 C (73.8 F) | 3.2 C (5.8 F) | 35 | 27 of 100 (Routine) |
| 2018-12-24 | Navacerrada | Record high maximum temperature | 12.8 C (55.0 F) | 0.2 C (0.4 F) | 65 | 26 of 100 (Routine) |
| 2018-12-24 | Cap Cepet | Record high minimum temperature | 13.4 C (56.1 F) | 0.8 C (1.4 F) | 49 | 21 of 100 (Routine) |
| 2018-12-24 | Navacerrada | Record high minimum temperature | 7.8 C (46.0 F) | 0.8 C (1.4 F) | 40 | 21 of 100 (Routine) |
| 2018-12-25 | Cap Cepet | Record high maximum temperature | 17.2 C (63.0 F) | 1.4 C (2.5 F) | 40 | 22 of 100 (Routine) |
| 2018-12-25 | Navacerrada | Record high minimum temperature | 8.1 C (46.6 F) | 0.9 C (1.6 F) | 40 | 21 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.