Heat wave in Germany and 25 other countries, 16 to 22 October 2021
Heat wave in Germany and 25 other countries, 16 to 22 October 2021: 387 records at 318 stations, peak on 20 October 2021. Closed.
Data as of . Last revised (2026-10-17).
Key Facts
- Heat wave in Germany and 25 other countries, 16 to 22 October 2021 set or tied 387 station records at 318 stations.
- It ran from 16 October 2021 to 22 October 2021 (7 days) and its peak day was 20 October 2021.
- Status: closed.
- Uppsala_Aut set a daily record high maximum temperature of 15.3 C (59.5 F) on 20 October 2021.
- The busiest day was 20 October 2021 with 169 records.
- The oldest broken record in the ranked list had stood for 173 years.
Footprint
16 to 22 October 2021| Station | Type | Value | Date |
|---|---|---|---|
| Uppsala_Aut | Record high maximum temperature | 15.3 C (59.5 F) | 2021-10-20 |
| Greifswald | Record high minimum temperature | 14.2 C (57.6 F) | 2021-10-20 |
| Putbus | Record high minimum temperature | 13.6 C (56.5 F) | 2021-10-20 |
| Tartu-Toravere | Record high minimum temperature | 11.5 C (52.7 F) | 2021-10-21 |
| Klaipeda | Record high maximum temperature | 21.4 C (70.5 F) | 2021-10-21 |
| Bradford | Record high maximum temperature | 18.6 C (65.5 F) | 2021-10-18 |
| Dublin Phoenix Park | Record high maximum temperature | 19.2 C (66.6 F) | 2021-10-19 |
| Schwerin | Record high minimum temperature | 12.6 C (54.7 F) | 2021-10-20 |
| Berlin-Dahlem | Record high minimum temperature | 12.8 C (55.0 F) | 2021-10-20 |
| Gorlitz | Record high minimum temperature | 12.3 C (54.1 F) | 2021-10-20 |
| Poitiers - Biard | Record high maximum temperature | 25.0 C (77.0 F) | 2021-10-19 |
| Marnitz | Record high minimum temperature | 12.8 C (55.0 F) | 2021-10-20 |
| Waren | Record high minimum temperature | 12.0 C (53.6 F) | 2021-10-20 |
| Falun | Record high maximum temperature | 13.9 C (57.0 F) | 2021-10-20 |
| Maastricht | Record high minimum temperature | 14.6 C (58.3 F) | 2021-10-20 |
| Strachowice | Record high minimum temperature | 10.9 C (51.6 F) | 2021-10-20 |
| Porto | Record high maximum temperature | 27.8 C (82.0 F) | 2021-10-20 |
| Pte de Chassiron | Record high minimum temperature | 17.6 C (63.7 F) | 2021-10-20 |
| Voru | Record high minimum temperature | 11.9 C (53.4 F) | 2021-10-21 |
Records per Day
Peak day 169| Date | Records |
|---|---|
| 2021-10-16 | 3 |
| 2021-10-17 | 8 |
| 2021-10-18 | 25 |
| 2021-10-19 | 70 |
| 2021-10-20 | 169 |
| 2021-10-21 | 85 |
| 2021-10-22 | 27 |
Top Records by Margin
Margin over the record replaced| Klaipeda, 10-21 | |
|---|---|
| Voru, 10-21 | |
| Uppsala_Aut, 10-20 | |
| Greifswald, 10-20 | |
| Strachowice, 10-20 | |
| Porto, 10-20 | |
| Putbus, 10-20 | |
| Tartu-Toravere, 10-21 | |
| Pte de Chassiron, 10-20 | |
| Bradford, 10-18 | |
| Berlin-Dahlem, 10-20 | |
| Poitiers - Biard, 10-19 | |
| Schwerin, 10-20 | |
| Gorlitz, 10-20 | |
| Dublin Phoenix Park, 10-19 |
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 |
|---|---|
| 2.3 | 173 |
| 2.1 | 120 |
| 1.6 | 146 |
| 1.6 | 112 |
| 4.7 | 72 |
| 0.8 | 100 |
| 0.3 | 121 |
| 0.4 | 100 |
| 0.6 | 120 |
| 0.4 | 120 |
| 0.5 | 98 |
| 0.3 | 100 |
| 0.1 | 100 |
| 0.1 | 100 |
| 0.1 | 98 |
| 0.1 | 98 |
| 2.0 | 82 |
| 1.7 | 80 |
| 2.6 | 72 |
| 1.2 | 72 |
| 2.0 | 76 |
| 1.5 | 72 |
| 1.3 | 72 |
| 2.6 | 72 |
| 2.1 | 72 |
| 2.3 | 72 |
| 0.4 | 72 |
| 4.1 | 55 |
| 1.4 | 72 |
| 0.3 | 72 |
| 1.2 | 72 |
| 2.5 | 44 |
| 3.2 | 38 |
| 0.5 | 72 |
| 0.1 | 72 |
| 1.7 | 68 |
| 0.3 | 72 |
| 0.2 | 67 |
| 2.0 | 55 |
| 0.5 | 67 |
| 1.5 | 62 |
| 1.4 | 60 |
| 1.9 | 62 |
| 0.2 | 72 |
| 2.9 | 55 |
| 0.2 | 67 |
| 0.4 | 68 |
| 0.4 | 67 |
| 0.6 | 68 |
| 1.5 | 60 |
| 0.4 | 68 |
| 0.1 | 68 |
| 1.7 | 40 |
| 1.3 | 54 |
| 2.6 | 55 |
| 0.7 | 60 |
| 0.8 | 60 |
| 0.6 | 60 |
| 0.9 | 52 |
| 2.4 | 55 |
| 1.0 | 60 |
| 1.2 | 59 |
| 1.2 | 59 |
| 1.1 | 60 |
| 0.6 | 52 |
| 0.4 | 54 |
| 0.4 | 60 |
| 1.0 | 56 |
| 1.0 | 59 |
| 0.3 | 60 |
| 0.6 | 60 |
| 1.0 | 59 |
| 1.2 | 44 |
| 1.6 | 52 |
| 0.3 | 51 |
| 0.2 | 60 |
| 0.1 | 60 |
| 0.3 | 59 |
| 2.4 | 44 |
| 1.1 | 54 |
| 0.5 | 55 |
| 0.4 | 59 |
| 1.5 | 52 |
| 0.7 | 52 |
| 0.2 | 59 |
| 0.7 | 50 |
| 0.7 | 52 |
| 0.5 | 50 |
| 3.5 | 36 |
| 0.2 | 51 |
| 0.1 | 54 |
| 2.5 | 43 |
| 0.3 | 50 |
| 1.9 | 44 |
| 0.7 | 36 |
| 0.7 | 36 |
| 0.7 | 52 |
| 0.1 | 51 |
| 1.2 | 43 |
| 1.1 | 51 |
| 0.5 | 54 |
| 0.7 | 40 |
| 0.3 | 44 |
| 0.2 | 51 |
| 0.1 | 55 |
| 0.2 | 36 |
| 0.2 | 50 |
| 0.4 | 51 |
| 0.5 | 52 |
| 0.9 | 38 |
| 0.4 | 52 |
| 1.1 | 36 |
| 1.0 | 36 |
| 1.2 | 43 |
| 1.2 | 43 |
| 0.3 | 44 |
| 2.6 | 20 |
| 1.5 | 43 |
| 0.4 | 44 |
| 3.1 | 31 |
| 1.4 | 36 |
| 1.4 | 36 |
| 0.7 | 36 |
| 1.0 | 36 |
| 0.9 | 36 |
| 2.2 | 20 |
| 2.0 | 15 |
| 2.5 | 32 |
| 0.6 | 36 |
| 1.2 | 36 |
| 0.8 | 36 |
| 3.2 | 7 |
| 1.7 | 24 |
| 1.5 | 24 |
| 2.2 | 24 |
| 1.0 | 32 |
| 0.7 | 32 |
| 1.4 | 32 |
| 3.5 | 7 |
| 0.5 | 20 |
| 0.1 | 32 |
| 5.2 | 8 |
| 0.2 | 36 |
| 0.1 | 36 |
| 0.2 | 36 |
| 1.1 | 16 |
| 4.0 | 7 |
| 1.9 | 26 |
| 1.9 | 26 |
| 0.2 | 38 |
| 2.0 | 20 |
| 1.4 | 20 |
| 0.1 | 24 |
| 2.1 | 16 |
| 3.1 | 12 |
| 1.1 | 8 |
| 3.0 | 12 |
| 0.9 | 32 |
| 1.0 | 7 |
| 1.8 | 20 |
| 2.5 | 20 |
| 0.8 | 32 |
| 0.2 | 32 |
| 2.0 | 20 |
| 1.8 | 8 |
| 0.5 | 32 |
| 1.2 | 20 |
| 0.2 | 7 |
| 1.7 | 12 |
| 1.0 | 12 |
| 0.5 | 24 |
| 2.4 | 7 |
| 1.1 | 12 |
| 1.4 | 23 |
| 1.0 | 24 |
| 2.3 | 2 |
| 0.3 | 20 |
| 2.2 | 7 |
| 0.7 | 20 |
| 1.8 | 8 |
| 0.6 | 32 |
| 1.8 | 20 |
| 0.9 | 8 |
| 1.5 | 7 |
| 0.9 | 7 |
| 1.0 | 8 |
| 2.1 | 7 |
| 2.4 | 8 |
| 1.8 | 2 |
| 1.3 | 19 |
| 1.5 | 19 |
| 1.8 | 8 |
| 0.2 | 24 |
| 0.1 | 24 |
| 0.4 | 24 |
| 1.6 | 26 |
| 0.6 | 31 |
| 2.0 | 4 |
| 0.5 | 8 |
| 1.5 | 8 |
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 25 other countries, 16 to 22 October 2021 (this event) |
Every Record Set
20 of 387| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2021-10-18 | Bradford | Record high maximum temperature | 18.6 C (65.5 F) | 0.8 C (1.4 F) | 100 | 42 of 100 (Notable) |
| 2021-10-19 | Dublin Phoenix Park | Record high maximum temperature | 19.2 C (66.6 F) | 0.3 C (0.5 F) | 121 | 41 of 100 (Notable) |
| 2021-10-19 | Poitiers - Biard | Record high maximum temperature | 25.0 C (77.0 F) | 0.5 C (0.9 F) | 98 | 40 of 100 (Notable) |
| 2021-10-20 | Uppsala_Aut | Record high maximum temperature | 15.3 C (59.5 F) | 2.3 C (4.1 F) | 173 | 46 of 100 (Notable) |
| 2021-10-20 | Greifswald | Record high minimum temperature | 14.2 C (57.6 F) | 2.1 C (3.8 F) | 120 | 45 of 100 (Notable) |
| 2021-10-20 | Putbus | Record high minimum temperature | 13.6 C (56.5 F) | 1.6 C (2.9 F) | 146 | 45 of 100 (Notable) |
| 2021-10-20 | Schwerin | Record high minimum temperature | 12.6 C (54.7 F) | 0.4 C (0.7 F) | 100 | 41 of 100 (Notable) |
| 2021-10-20 | Berlin-Dahlem | Record high minimum temperature | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 120 | 41 of 100 (Notable) |
| 2021-10-20 | Gorlitz | Record high minimum temperature | 12.3 C (54.1 F) | 0.4 C (0.7 F) | 120 | 41 of 100 (Notable) |
| 2021-10-20 | Marnitz | Record high minimum temperature | 12.8 C (55.0 F) | 0.3 C (0.5 F) | 100 | 40 of 100 (Notable) |
| 2021-10-20 | Waren | Record high minimum temperature | 12.0 C (53.6 F) | 0.1 C (0.2 F) | 100 | 40 of 100 (Notable) |
| 2021-10-20 | Falun | Record high maximum temperature | 13.9 C (57.0 F) | 0.1 C (0.2 F) | 100 | 40 of 100 (Notable) |
| 2021-10-20 | Poitiers - Biard | Record high minimum temperature | 15.8 C (60.4 F) | 0.1 C (0.2 F) | 98 | 39 of 100 (Notable) |
| 2021-10-20 | Maastricht | Record high minimum temperature | 14.6 C (58.3 F) | 0.1 C (0.2 F) | 98 | 39 of 100 (Notable) |
| 2021-10-20 | Strachowice | Record high minimum temperature | 10.9 C (51.6 F) | 2.0 C (3.6 F) | 82 | 36 of 100 (Notable) |
| 2021-10-20 | Porto | Record high maximum temperature | 27.8 C (82.0 F) | 1.7 C (3.1 F) | 80 | 36 of 100 (Notable) |
| 2021-10-20 | Pte de Chassiron | Record high minimum temperature | 17.6 C (63.7 F) | 1.2 C (2.2 F) | 72 | 35 of 100 (Notable) |
| 2021-10-21 | Tartu-Toravere | Record high minimum temperature | 11.5 C (52.7 F) | 1.6 C (2.9 F) | 112 | 43 of 100 (Notable) |
| 2021-10-21 | Klaipeda | Record high maximum temperature | 21.4 C (70.5 F) | 4.7 C (8.5 F) | 72 | 43 of 100 (Notable) |
| 2021-10-21 | Voru | Record high minimum temperature | 11.9 C (53.4 F) | 2.6 C (4.7 F) | 72 | 35 of 100 (Notable) |
The daily ledgers keep a limited number of records per day, so this list has 20 of the 387 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.