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Built 2026-10-19 (19 October 2026)

Heat wave in Russia and 4 other countries, 16 to 24 April 2021

Heat wave in Russia and 4 other countries, 16 to 24 April 2021: 132 records at 92 stations, peak on 22 April 2021. Closed.

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

Key Facts

  • Heat wave in Russia and 4 other countries, 16 to 24 April 2021 set or tied 132 station records at 92 stations.
  • It ran from 16 April 2021 to 24 April 2021 (9 days) and its peak day was 22 April 2021.
  • Status: closed.
  • Vladivostok set a daily record high minimum temperature of 6.4 C (43.5 F) on 19 April 2021.
  • The busiest day was 22 April 2021 with 53 records.
  • The oldest broken record in the ranked list had stood for 108 years.

Footprint

16 to 24 April 2021
Footprint of Heat wave in Russia and 4 other countries, 16 to 24 April 2021 The area covered by Heat wave in Russia and 4 other countries, 16 to 24 April 2021 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Russia and 4 other countries, 16 to 24 April 2021 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Russia and 4 other countries, 16 to 24 April 2021: stations that set records in the event
StationTypeValueDate
VladivostokRecord high minimum temperature6.4 C (43.5 F)2021-04-19
BorzjaRecord high maximum temperature26.1 C (79.0 F)2021-04-21
BogorodskoeRecord high minimum temperature2.0 C (35.6 F)2021-04-18
UrjupinoRecord high maximum temperature27.2 C (81.0 F)2021-04-21
BirobidzhanRecord high maximum temperature23.1 C (73.6 F)2021-04-22
Baruun-UrtRecord high minimum temperature9.2 C (48.6 F)2021-04-21
ChoibalsanRecord high maximum temperature28.4 C (83.1 F)2021-04-21
AgzuRecord high maximum temperature26.3 C (79.3 F)2021-04-23
TuliheRecord high maximum temperature25.0 C (77.0 F)2021-04-21
KyraRecord high maximum temperature26.7 C (80.1 F)2021-04-21
TernejRecord high minimum temperature5.9 C (42.6 F)2021-04-19
PosetRecord high maximum temperature20.5 C (68.9 F)2021-04-20
SuturRecord high maximum temperature24.9 C (76.8 F)2021-04-22
Sovetskaja GavanRecord high minimum temperature2.5 C (36.5 F)2021-04-18
AksaRecord high maximum temperature26.9 C (80.4 F)2021-04-21
Nikolaevsk-Na-AmureRecord high minimum temperature1.2 C (34.2 F)2021-04-22
CekundaRecord high maximum temperature24.8 C (76.6 F)2021-04-22
ShilkaRecord high maximum temperature25.0 C (77.0 F)2021-04-21
ChernjaevoRecord high maximum temperature22.2 C (72.0 F)2021-04-21
Ust-UmaltaRecord high maximum temperature23.0 C (73.4 F)2021-04-22

Records per Day

Peak day 53
Records per day during Heat wave in Russia and 4 other countries, 16 to 24 April 2021 Records set or tied each day from 16 April 2021 to 24 April 2021. The most in one day was 53 on 22 April 2021. 0 15 30 45 60 04-1604-1704-1804-1904-2004-2104-2204-2304-24
Records set or tied each day from 16 April 2021 to 24 April 2021. The most in one day was 53 on 22 April 2021.
Records per day during Heat wave in Russia and 4 other countries, 16 to 24 April 2021
DateRecords
2021-04-163
2021-04-171
2021-04-185
2021-04-196
2021-04-2017
2021-04-2131
2021-04-2253
2021-04-2312
2021-04-244

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Russia and 4 other countries, 16 to 24 April 2021 ranked by margin
Urjupino, 04-217.2 C (13.0 F)
Baruun-Urt, 04-216.2 C (11.2 F)
Tulihe, 04-216.1 C (11.0 F)
Agzu, 04-235.3 C (9.5 F)
Choibalsan, 04-215.1 C (9.2 F)
Aksa, 04-214.9 C (8.8 F)
Kyra, 04-214.6 C (8.3 F)
Borzja, 04-214.4 C (7.9 F)
Shilka, 04-214.0 C (7.2 F)
Birobidzhan, 04-223.1 C (5.6 F)
Ust-Umalta, 04-223.0 C (5.4 F)
Sutur, 04-222.4 C (4.3 F)
Cekunda, 04-222.2 C (4.0 F)
Poset, 04-202.0 C (3.6 F)
Ternej, 04-191.9 C (3.4 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 4 other countries, 16 to 24 April 2021 132 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 0.02.04.06.08.0 Margin (C) Years the old record stood
132 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 4 other countries, 16 to 24 April 2021
Margin (C)Years the old record stood
0.8108
4.476
7.246
0.282
3.167
6.242
5.156
5.346
6.140
4.640
2.450
1.938
2.052
4.940
0.850
2.252
1.048
4.040
1.152
3.046
3.746
1.246
1.350
1.650
2.250
0.263
0.454
2.344
0.751
1.051
1.448
1.452
3.039
4.627
3.927
2.046
0.359
2.240
4.540
1.840
1.146
2.736
1.246
0.746
0.844
1.844
1.844
7.924
1.842
2.236
0.540
0.844
1.340
1.240
0.740
0.346
1.140
0.740
1.044
0.238
0.440
6.024
1.340
1.340
5.324
4.022
0.244
1.331
1.532
0.238
1.827
3.518
1.136
1.323
2.923
1.828
0.727
1.227
2.318
4.78
0.227
2.524
1.324
1.918
1.87
3.47
2.118
1.419
0.318
1.123
2.422
0.824
1.418
0.723
0.612
0.124
1.827
0.124
0.124
2.07
2.57
2.212
0.123
1.123
0.624
1.022
2.27
0.318
1.212
1.38
1.324
0.512
0.212
1.03
1.98
0.88
0.712
0.28
0.37
0.716
0.816
0.74
0.516
1.53
0.28
0.26
0.23
0.26
0.64
1.53
0.43
0.34

Compared With Other Events

Station records per event
Station records in Heat wave in Russia and 4 other countries, 16 to 24 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 4 other countries, 16 to 24 April 2021 (this event)132 records

Every Record Set

20 of 132
Every record set or tied during Heat wave in Russia and 4 other countries, 16 to 24 April 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-04-18BogorodskoeRecord high minimum temperature2.0 C (35.6 F)0.2 C (0.4 F)8232 of 100 (Routine)
2021-04-18Sovetskaja GavanRecord high minimum temperature2.5 C (36.5 F)1.0 C (1.8 F)4826 of 100 (Routine)
2021-04-19VladivostokRecord high minimum temperature6.4 C (43.5 F)0.8 C (1.4 F)10843 of 100 (Notable)
2021-04-19TernejRecord high minimum temperature5.9 C (42.6 F)1.9 C (3.4 F)3827 of 100 (Routine)
2021-04-20PosetRecord high maximum temperature20.5 C (68.9 F)2.0 C (3.6 F)5227 of 100 (Routine)
2021-04-21BorzjaRecord high maximum temperature26.1 C (79.0 F)4.4 C (7.9 F)7639 of 100 (Notable)
2021-04-21UrjupinoRecord high maximum temperature27.2 C (81.0 F)7.2 C (13.0 F)4632 of 100 (Routine)
2021-04-21Baruun-UrtRecord high minimum temperature9.2 C (48.6 F)6.2 C (11.2 F)4231 of 100 (Routine)
2021-04-21ChoibalsanRecord high maximum temperature28.4 C (83.1 F)5.1 C (9.2 F)5629 of 100 (Routine)
2021-04-21TuliheRecord high maximum temperature25.0 C (77.0 F)6.1 C (11.0 F)4028 of 100 (Routine)
2021-04-21KyraRecord high maximum temperature26.7 C (80.1 F)4.6 C (8.3 F)4028 of 100 (Routine)
2021-04-21AksaRecord high maximum temperature26.9 C (80.4 F)4.9 C (8.8 F)4026 of 100 (Routine)
2021-04-21ShilkaRecord high maximum temperature25.0 C (77.0 F)4.0 C (7.2 F)4025 of 100 (Routine)
2021-04-21ChernjaevoRecord high maximum temperature22.2 C (72.0 F)1.1 C (2.0 F)5225 of 100 (Routine)
2021-04-22BirobidzhanRecord high maximum temperature23.1 C (73.6 F)3.1 C (5.6 F)6732 of 100 (Routine)
2021-04-22SuturRecord high maximum temperature24.9 C (76.8 F)2.4 C (4.3 F)5027 of 100 (Routine)
2021-04-22Nikolaevsk-Na-AmureRecord high minimum temperature1.2 C (34.2 F)0.8 C (1.4 F)5026 of 100 (Routine)
2021-04-22CekundaRecord high maximum temperature24.8 C (76.6 F)2.2 C (4.0 F)5226 of 100 (Routine)
2021-04-22Ust-UmaltaRecord high maximum temperature23.0 C (73.4 F)3.0 C (5.4 F)4625 of 100 (Routine)
2021-04-23AgzuRecord high maximum temperature26.3 C (79.3 F)5.3 C (9.5 F)4629 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 132 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.