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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Heat wave in Finland and 19 other countries, 25 October to 10 November 2021

Heat wave in Finland and 19 other countries, 25 October to 10 November 2021: 539 records at 329 stations, peak on 31 October 2021. Closed.

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

Key Facts

  • Heat wave in Finland and 19 other countries, 25 October to 10 November 2021 set or tied 539 station records at 329 stations.
  • It ran from 25 October 2021 to 10 November 2021 (17 days) and its peak day was 31 October 2021.
  • Status: closed.
  • Biskra set a monthly record high minimum temperature of 22.3 C (72.1 F) on 1 November 2021.
  • The busiest day was 29 October 2021 with 112 records.
  • The oldest broken record in the ranked list had stood for 140 years.

Footprint

25 October to 10 November 2021
Footprint of Heat wave in Finland and 19 other countries, 25 October to 10 November 2021 The area covered by Heat wave in Finland and 19 other countries, 25 October to 10 November 2021 is outlined, with 19 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Finland and 19 other countries, 25 October to 10 November 2021 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Finland and 19 other countries, 25 October to 10 November 2021: stations that set records in the event
StationTypeValueDate
BiskraRecord high minimum temperature22.3 C (72.1 F)2021-11-01
MisurataRecord high minimum temperature22.3 C (72.1 F)2021-11-09
Tizi OuzouRecord high minimum temperature18.9 C (66.0 F)2021-11-01
LaghouatRecord high minimum temperature14.8 C (58.6 F)2021-11-01
HarnosandRecord high maximum temperature13.0 C (55.4 F)2021-10-29
VoruRecord high maximum temperature15.8 C (60.4 F)2021-10-30
Oksoey FyrRecord high minimum temperature11.5 C (52.7 F)2021-10-29
Velikie LukiRecord high maximum temperature15.4 C (59.7 F)2021-10-30
Tartu-ToravereRecord high maximum temperature13.5 C (56.3 F)2021-10-30
PerpignanRecord high minimum temperature19.2 C (66.6 F)2021-10-30
ParnuRecord high maximum temperature13.1 C (55.6 F)2021-11-01
TallinnRecord high maximum temperature11.4 C (52.5 F)2021-10-30
SarapulRecord high minimum temperature6.3 C (43.3 F)2021-10-31
Albacete Los LlanosRecord high minimum temperature14.8 C (58.6 F)2021-10-31
KuusikuRecord high minimum temperature9.5 C (49.1 F)2021-10-29
FalunRecord high minimum temperature9.7 C (49.5 F)2021-10-29
Stavanger - ValandRecord high maximum temperature14.3 C (57.7 F)2021-10-29
Loken I VolbuRecord high minimum temperature7.7 C (45.9 F)2021-10-29
SaudaRecord high maximum temperature16.5 C (61.7 F)2021-10-30

Records per Day

Peak day 104
Records per day during Heat wave in Finland and 19 other countries, 25 October to 10 November 2021 Records set or tied each day from 25 October 2021 to 10 November 2021. The most in one day was 112 on 29 October 2021. 0 30 60 90 120 10-2510-2810-3011-0111-0311-0511-0711-10
Records set or tied each day from 25 October 2021 to 10 November 2021. The most in one day was 112 on 29 October 2021.
Records per day during Heat wave in Finland and 19 other countries, 25 October to 10 November 2021
DateRecords
2021-10-2513
2021-10-2714
2021-10-2813
2021-10-29112
2021-10-30102
2021-10-31104
2021-11-0189
2021-11-0233
2021-11-0336
2021-11-043
2021-11-0510
2021-11-063
2021-11-074
2021-11-092
2021-11-101

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Finland and 19 other countries, 25 October to 10 November 2021 ranked by margin
Loken I Volbu, 10-294.4 C (7.9 F)
Misurata, 11-093.4 C (6.1 F)
Albacete Los Llanos, 10-312.8 C (5.0 F)
Voru, 10-302.6 C (4.7 F)
Tizi Ouzou, 11-011.9 C (3.4 F)
Misurata, 11-071.9 C (3.4 F)
Laghouat, 11-011.8 C (3.2 F)
Falun, 10-291.7 C (3.1 F)
Perpignan, 10-301.5 C (2.7 F)
Sauda, 10-301.4 C (2.5 F)
Stavanger - Valand, 10-291.4 C (2.5 F)
Harnosand, 10-291.0 C (1.8 F)
Tartu-Toravere, 10-300.7 C (1.3 F)
Sarapul, 10-310.7 C (1.3 F)
Parnu, 11-010.5 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 Finland and 19 other countries, 25 October to 10 November 2021 500 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
500 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 Finland and 19 other countries, 25 October to 10 November 2021
Margin (C)Years the old record stood
0.3140
3.492
1.9121
1.8108
1.0137
2.688
0.3120
0.4124
1.982
0.788
0.553
1.579
0.288
0.788
2.863
0.484
1.768
1.467
1.468
4.456
3.940
0.968
1.268
1.360
0.728
0.768
1.164
0.868
0.956
0.864
0.668
1.952
2.544
1.068
0.362
0.167
0.964
0.948
0.560
1.256
1.160
0.564
1.051
0.663
0.621
1.459
0.664
1.752
1.656
1.854
0.264
1.456
1.752
0.562
0.362
1.456
1.252
3.936
0.525
0.152
2.244
0.624
1.336
1.254
0.260
1.154
1.251
0.228
1.927
0.162
3.231
0.752
0.556
0.756
0.756
1.832
0.552
0.752
0.952
0.852
1.336
0.738
0.452
0.452
0.256
4.216
1.110
1.044
0.554
0.156
0.45
0.256
0.254
0.356
0.354
0.354
0.554
0.254
0.154
0.254
0.452
0.152
0.152
0.121
0.443
1.244
2.138
0.520
1.731
0.252
0.150
0.850
1.850
0.552
3.824
0.236
0.456
2.620
0.538
3.216
0.244
0.946
0.147
1.740
2.532
0.536
1.246
2.134
0.45
0.15
1.536
1.940
1.720
0.840
0.943
0.716
0.338
0.68
2.131
2.926
1.431
0.550
1.536
2.028
0.436
0.544
0.744
1.344
0.92
3.18
3.58
1.431
1.434
1.336
0.536
2.326
1.431
1.731
3.411
1.234
2.122
1.434
2.716
1.120
1.627
0.636
0.739
0.839
0.210
0.144
1.927
2.326
1.826
1.926
0.232
0.346
0.146
0.439
1.038
3.716
0.536
0.236
1.920
1.528
0.524
0.38
0.138
0.440
1.526
0.932
0.28
1.720
1.131
1.414
1.224
1.316
0.931
0.727
1.720
0.127

Compared With Other Events

Station records per event
Station records in Heat wave in Finland and 19 other countries, 25 October to 10 November 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 Finland and 19 other countries, 25 October to 10 November 2021 (this event)539 records

Every Record Set

20 of 539
Every record set or tied during Heat wave in Finland and 19 other countries, 25 October to 10 November 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-10-29HarnosandRecord high maximum temperature13.0 C (55.4 F)1.0 C (1.8 F)13742 of 100 (Notable)
2021-10-29Oksoey FyrRecord high minimum temperature11.5 C (52.7 F)0.3 C (0.5 F)12040 of 100 (Notable)
2021-10-29KuusikuRecord high minimum temperature9.5 C (49.1 F)0.4 C (0.7 F)8434 of 100 (Routine)
2021-10-29FalunRecord high minimum temperature9.7 C (49.5 F)1.7 C (3.1 F)6834 of 100 (Routine)
2021-10-29Stavanger - ValandRecord high maximum temperature14.3 C (57.7 F)1.4 C (2.5 F)6832 of 100 (Routine)
2021-10-29Loken I VolbuRecord high minimum temperature7.7 C (45.9 F)4.4 C (7.9 F)5632 of 100 (Routine)
2021-10-30VoruRecord high maximum temperature15.8 C (60.4 F)2.6 C (4.7 F)8841 of 100 (Notable)
2021-10-30Velikie LukiRecord high maximum temperature15.4 C (59.7 F)0.4 C (0.7 F)12440 of 100 (Notable)
2021-10-30Tartu-ToravereRecord high maximum temperature13.5 C (56.3 F)0.7 C (1.3 F)8837 of 100 (Notable)
2021-10-30PerpignanRecord high minimum temperature19.2 C (66.6 F)1.5 C (2.7 F)7937 of 100 (Notable)
2021-10-30TallinnRecord high maximum temperature11.4 C (52.5 F)0.2 C (0.4 F)8836 of 100 (Notable)
2021-10-30SaudaRecord high maximum temperature16.5 C (61.7 F)1.4 C (2.5 F)6732 of 100 (Routine)
2021-10-31SarapulRecord high minimum temperature6.3 C (43.3 F)0.7 C (1.3 F)8836 of 100 (Notable)
2021-10-31Albacete Los LlanosRecord high minimum temperature14.8 C (58.6 F)2.8 C (5.0 F)6335 of 100 (Notable)
2021-11-01BiskraRecord high minimum temperature22.3 C (72.1 F)0.3 C (0.5 F)14050 of 100 (Notable)
2021-11-01Tizi OuzouRecord high minimum temperature18.9 C (66.0 F)1.9 C (3.4 F)12146 of 100 (Notable)
2021-11-01LaghouatRecord high minimum temperature14.8 C (58.6 F)1.8 C (3.2 F)10845 of 100 (Notable)
2021-11-01ParnuRecord high maximum temperature13.1 C (55.6 F)0.5 C (0.9 F)5337 of 100 (Notable)
2021-11-07MisurataRecord high minimum temperature22.1 C (71.8 F)1.9 C (3.4 F)8239 of 100 (Notable)
2021-11-09MisurataRecord high minimum temperature22.3 C (72.1 F)3.4 C (6.1 F)9247 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 539 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.