Built 2026-10-19 (19 October 2026)

Heat wave in Russia and 3 other countries, 5 to 13 April 2021

Heat wave in Russia and 3 other countries, 5 to 13 April 2021: 120 records at 102 stations, peak on 6 April 2021. Closed.

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

Key Facts

  • Heat wave in Russia and 3 other countries, 5 to 13 April 2021 set or tied 120 station records at 102 stations.
  • It ran from 5 April 2021 to 13 April 2021 (9 days) and its peak day was 6 April 2021.
  • Status: closed.
  • Poronajsk set a daily record high maximum temperature of 13.5 C (56.3 F) on 11 April 2021.
  • The busiest day was 6 April 2021 with 25 records.
  • The oldest broken record in the ranked list had stood for 100 years.

Footprint

5 to 13 April 2021
Footprint of Heat wave in Russia and 3 other countries, 5 to 13 April 2021 The area covered by Heat wave in Russia and 3 other countries, 5 to 13 April 2021 is outlined, with 19 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Russia and 3 other countries, 5 to 13 April 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 Russia and 3 other countries, 5 to 13 April 2021: stations that set records in the event
StationTypeValueDate
PoronajskRecord high maximum temperature13.5 C (56.3 F)2021-04-11
EnisejskRecord high maximum temperature16.9 C (62.4 F)2021-04-06
KjahtaRecord high maximum temperature20.0 C (68.0 F)2021-04-08
Krasnyj JarRecord high minimum temperature8.1 C (46.6 F)2021-04-12
MogocaRecord high maximum temperature14.7 C (58.5 F)2021-04-09
BorzjaRecord high maximum temperature18.7 C (65.7 F)2021-04-09
SretenskRecord high maximum temperature18.8 C (65.8 F)2021-04-09
QiqiharRecord high minimum temperature7.2 C (45.0 F)2021-04-10
NoglikiRecord high maximum temperature12.0 C (53.6 F)2021-04-11
NemuroRecord high minimum temperature5.5 C (41.9 F)2021-04-13
Ekaterino-NikolskoeRecord high minimum temperature4.1 C (39.4 F)2021-04-11
AnucinoRecord high minimum temperature7.6 C (45.7 F)2021-04-11
BajkitRecord high maximum temperature13.1 C (55.6 F)2021-04-06
UakitRecord high maximum temperature10.3 C (50.5 F)2021-04-08
BikinRecord high minimum temperature4.6 C (40.3 F)2021-04-10
HirooRecord high maximum temperature19.2 C (66.6 F)2021-04-12
AgzuRecord high minimum temperature0.9 C (33.6 F)2021-04-12
Petrovskij ZavodRecord high minimum temperature-2.2 C (28.0 F)2021-04-09
KirovskijRecord high minimum temperature5.4 C (41.7 F)2021-04-11

Records per Day

Peak day 25
Records per day during Heat wave in Russia and 3 other countries, 5 to 13 April 2021 Records set or tied each day from 5 April 2021 to 13 April 2021. The most in one day was 25 on 6 April 2021. 0 6 13 19 25 04-0504-0604-0704-0804-0904-1004-1104-1204-13
Records set or tied each day from 5 April 2021 to 13 April 2021. The most in one day was 25 on 6 April 2021.
Records per day during Heat wave in Russia and 3 other countries, 5 to 13 April 2021
DateRecords
2021-04-059
2021-04-0625
2021-04-075
2021-04-0814
2021-04-0917
2021-04-1010
2021-04-1120
2021-04-1216
2021-04-134

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Russia and 3 other countries, 5 to 13 April 2021 ranked by margin
Anucino, 04-116.3 C (11.3 F)
Petrovskij Zavod, 04-093.8 C (6.8 F)
Kirovskij, 04-113.4 C (6.1 F)
Qiqihar, 04-103.1 C (5.6 F)
Hiroo, 04-123.1 C (5.6 F)
Enisejsk, 04-062.8 C (5.0 F)
Krasnyj Jar, 04-122.8 C (5.0 F)
Uakit, 04-081.4 C (2.5 F)
Poronajsk, 04-121.2 C (2.2 F)
Kjahta, 04-081.0 C (1.8 F)
Sretensk, 04-091.0 C (1.8 F)
Nemuro, 04-131.0 C (1.8 F)
Nogliki, 04-110.9 C (1.6 F)
Agzu, 04-120.9 C (1.6 F)
Poronajsk, 04-110.7 C (1.3 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 Russia and 3 other countries, 5 to 13 April 2021 120 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 25 50 75 100 0.02.04.06.08.0 Margin (C) Years the old record stood
120 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 Russia and 3 other countries, 5 to 13 April 2021
Margin (C)Years the old record stood
0.7100
2.880
1.080
2.875
0.183
0.483
3.167
1.083
0.975
1.066
0.575
6.331
1.260
0.176
1.471
3.159
0.968
0.771
3.844
3.446
1.156
1.056
0.360
1.156
0.260
0.160
0.156
0.944
2.640
5.58
0.644
1.931
3.422
5.423
1.639
2.831
0.631
1.436
0.732
1.220
2.622
1.332
1.331
1.722
0.431
2.516
3.412
2.531
1.622
2.126
3.614
0.831
0.623
1.823
0.232
2.318
2.612
1.822
1.020
2.323
1.523
2.423
3.114
2.612
2.026
3.614
2.216
0.926
3.412
3.82
1.222
1.931
3.614
0.414
0.526
4.88
1.812
0.812
0.522
2.93
0.320
0.222
1.123
1.222
3.30
1.516
4.30
1.016
1.514
4.20
4.50
1.10
0.318
0.715
2.48
0.77
1.37
0.418
1.70
0.318
0.916
2.67
2.80
0.312
1.34
0.98
1.18
0.84
1.03
1.38
0.116
0.30
0.18
0.80
0.40
0.10
0.13
0.20
1.14
0.38

Compared With Other Events

Station records per event
Station records in Heat wave in Russia and 3 other countries, 5 to 13 April 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 Russia and 3 other countries, 5 to 13 April 2021 (this event)120 records

Every Record Set

20 of 120
Every record set or tied during Heat wave in Russia and 3 other countries, 5 to 13 April 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-04-06EnisejskRecord high maximum temperature16.9 C (62.4 F)2.8 C (5.0 F)8038 of 100 (Notable)
2021-04-06BajkitRecord high maximum temperature13.1 C (55.6 F)0.1 C (0.2 F)7630 of 100 (Routine)
2021-04-08KjahtaRecord high maximum temperature20.0 C (68.0 F)1.0 C (1.8 F)8035 of 100 (Notable)
2021-04-08UakitRecord high maximum temperature10.3 C (50.5 F)1.4 C (2.5 F)7130 of 100 (Routine)
2021-04-09MogocaRecord high maximum temperature14.7 C (58.5 F)0.1 C (0.2 F)8334 of 100 (Routine)
2021-04-09BorzjaRecord high maximum temperature18.7 C (65.7 F)0.4 C (0.7 F)8334 of 100 (Routine)
2021-04-09SretenskRecord high maximum temperature18.8 C (65.8 F)1.0 C (1.8 F)8333 of 100 (Routine)
2021-04-09Petrovskij ZavodRecord high minimum temperature-2.2 C (28.0 F)3.8 C (6.8 F)4427 of 100 (Routine)
2021-04-10QiqiharRecord high minimum temperature7.2 C (45.0 F)3.1 C (5.6 F)6733 of 100 (Routine)
2021-04-10BikinRecord high minimum temperature4.6 C (40.3 F)0.7 C (1.3 F)7129 of 100 (Routine)
2021-04-11PoronajskRecord high maximum temperature13.5 C (56.3 F)0.7 C (1.3 F)10041 of 100 (Notable)
2021-04-11NoglikiRecord high maximum temperature12.0 C (53.6 F)0.9 C (1.6 F)7533 of 100 (Routine)
2021-04-11Ekaterino-NikolskoeRecord high minimum temperature4.1 C (39.4 F)0.5 C (0.9 F)7531 of 100 (Routine)
2021-04-11AnucinoRecord high minimum temperature7.6 C (45.7 F)6.3 C (11.3 F)3131 of 100 (Routine)
2021-04-11KirovskijRecord high minimum temperature5.4 C (41.7 F)3.4 C (6.1 F)4627 of 100 (Routine)
2021-04-12Krasnyj JarRecord high minimum temperature8.1 C (46.6 F)2.8 C (5.0 F)7535 of 100 (Notable)
2021-04-12PoronajskRecord high minimum temperature3.2 C (37.8 F)1.2 C (2.2 F)6031 of 100 (Routine)
2021-04-12HirooRecord high maximum temperature19.2 C (66.6 F)3.1 C (5.6 F)5929 of 100 (Routine)
2021-04-12AgzuRecord high minimum temperature0.9 C (33.6 F)0.9 C (1.6 F)6829 of 100 (Routine)
2021-04-13NemuroRecord high minimum temperature5.5 C (41.9 F)1.0 C (1.8 F)6632 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 120 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.