Heat wave in Russia and 3 other countries, 21 July to 2 August 2020

Name: Heat wave in Russia and 3 other countries, 21 July to 2 August 2020
Start: 2020-07-21
End: 2020-08-02
Location: Russia, China, Korea, North, Mongolia

Heat wave in Russia and 3 other countries, 21 July to 2 August 2020: 127 records at 60 stations, peak on 29 July 2020. Closed.

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

Key Facts

Heat wave in Russia and 3 other countries, 21 July to 2 August 2020 set or tied 127 station records at 60 stations.
It ran from 21 July 2020 to 2 August 2020 (13 days) and its peak day was 29 July 2020.
Status: closed.
Poronajsk set a daily record high maximum temperature of 31.6 C (88.9 F) on 30 July 2020.
The busiest day was 29 July 2020 with 33 records.
The oldest broken record in the ranked list had stood for 82 years.

Footprint

21 July to 2 August 2020

The area covered by Heat wave in Russia and 3 other countries, 21 July to 2 August 2020 is outlined, with 17 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, 21 July to 2 August 2020: stations that set records in the event
Station	Type	Value	Date
Poronajsk	Record high maximum temperature	31.6 C (88.9 F)	2020-07-30
Bomnak	Record high minimum temperature	18.5 C (65.3 F)	2020-07-30
Jinzhou	Record high maximum temperature	37.4 C (99.3 F)	2020-07-25
Nerchinskij Zavod	Record high maximum temperature	34.0 C (93.2 F)	2020-07-24
Dzalinda	Record high maximum temperature	32.5 C (90.5 F)	2020-07-28
Norsk	Record high maximum temperature	32.2 C (90.0 F)	2020-07-29
Siping	Record high maximum temperature	35.1 C (95.2 F)	2020-07-25
Bolsoy Santar	Record high maximum temperature	28.4 C (83.1 F)	2020-07-30
Leting	Record high maximum temperature	38.8 C (101.8 F)	2020-07-24
Urjupino	Record high minimum temperature	17.4 C (63.3 F)	2020-07-30
Aksa	Record high minimum temperature	16.9 C (62.4 F)	2020-07-27
Nikolaevsk-Na-Amure	Record high maximum temperature	30.7 C (87.3 F)	2020-07-29
Bratoljubovka	Record high minimum temperature	18.8 C (65.8 F)	2020-07-31
Zhangwu	Record high maximum temperature	34.8 C (94.6 F)	2020-07-25
Chaoyang	Record high maximum temperature	39.0 C (102.2 F)	2020-07-25
Burukan	Record high maximum temperature	35.6 C (96.1 F)	2020-07-29
Shenyang	Record high maximum temperature	34.1 C (93.4 F)	2020-07-22

Records per Day

Peak day 33

Records set or tied each day from 21 July 2020 to 2 August 2020. The most in one day was 33 on 29 July 2020.

Records per day during Heat wave in Russia and 3 other countries, 21 July to 2 August 2020
Date	Records
2020-07-21	2
2020-07-22	4
2020-07-23	9
2020-07-24	9
2020-07-25	10
2020-07-26	8
2020-07-27	7
2020-07-28	11
2020-07-29	33
2020-07-30	22
2020-07-31	9
2020-08-01	1
2020-08-02	2

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Russia and 3 other countries, 21 July to 2 August 2020 ranked by margin
Bolsoy Santar, 07-30	3.7 C (6.7 F)
Urjupino, 07-31	3.0 C (5.4 F)
Burukan, 07-29	2.8 C (5.0 F)
Jinzhou, 07-25	2.4 C (4.3 F)
Siping, 07-25	1.9 C (3.4 F)
Aksa, 07-27	1.9 C (3.4 F)
Poronajsk, 07-30	1.7 C (3.1 F)
Bratoljubovka, 07-31	1.6 C (2.9 F)
Chaoyang, 07-25	1.5 C (2.7 F)
Nikolaevsk-Na-Amure, 07-29	1.4 C (2.5 F)
Nerchinskij Zavod, 07-24	1.3 C (2.3 F)
Urjupino, 07-30	1.3 C (2.3 F)
Zhangwu, 07-25	1.1 C (2.0 F)
Norsk, 07-30	1.0 C (1.8 F)
Zhangwu, 07-23	0.8 C (1.4 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

127 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, 21 July to 2 August 2020
Margin (C)	Years the old record stood
1.7	77
0.5	82
2.4	65
0.4	81
1.3	71
0.4	81
1.9	62
3.7	53
0.1	18
1.3	72
1.0	70
1.9	58
1.4	60
1.6	63
1.1	65
1.5	65
2.8	60
0.8	65
0.3	68
3.0	46
0.7	62
1.0	57
0.1	60
1.1	60
3.8	31
4.0	27
0.8	60
2.1	40
1.0	48
0.9	52
0.9	46
1.8	39
0.4	52
0.3	52
0.4	50
1.5	40
1.3	40
0.7	48
1.1	40
0.1	48
1.9	26
3.1	21
1.7	32
4.0	27
1.0	40
1.6	40
0.5	45
1.0	42
1.3	39
1.3	40
1.0	40
1.7	23
0.2	39
1.4	27
1.5	28
0.4	32
2.1	32
2.1	27
0.1	39
0.3	36
1.6	23
0.4	32
1.0	36
2.4	19
1.7	20
0.2	39
1.7	22
0.6	32
1.6	27
0.1	32
0.1	32
0.6	21
0.4	26
0.6	20
0.6	22
2.1	7
1.6	13
0.6	23
0.5	26
1.2	9
1.9	7
1.7	7
1.9	7
1.0	19
0.1	26
0.3	23
0.1	21
0.1	26
0.3	26
0.2	17
2.4	4
0.8	9
0.6	7
0.6	19
0.9	13
0.6	16
0.8	19
1.0	11
1.3	2
0.3	18
0.7	12
1.4	1
0.5	5
0.4	11
0.4	11
0.4	12
1.0	9
0.8	2
0.9	7
0.2	11
0.2	9
0.6	7
0.3	13
0.1	9
0.3	7
1.0	3
0.1	9
0.3	6
0.4	9
0.7	1
0.2	12
0.7	6
0.4	2
0.3	7
0.7	2
0.4	1
0.3	1

Compared With Other Events

Station records per event

Station records in Heat wave in Russia and 3 other countries, 21 July to 2 August 2020 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 2024	9,869 records
Heat wave in United States, 28 January to 24 February 2026	6,528 records
Heat wave in United States and Mexico, 24 May to 19 June 2020	5,047 records
Heat wave in United States and Mexico, 26 March to 17 April 2021	3,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022	3,626 records
Heat wave in Russia and 3 other countries, 21 July to 2 August 2020 (this event)	127 records

Every Record Set

20 of 127

Every record set or tied during Heat wave in Russia and 3 other countries, 21 July to 2 August 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-07-22	Shenyang	Record high maximum temperature	34.1 C (93.4 F)	0.3 C (0.5 F)	68	28 of 100 (Routine)
2020-07-23	Zhangwu	Record high maximum temperature	34.8 C (94.6 F)	0.8 C (1.4 F)	65	28 of 100 (Routine)
2020-07-24	Nerchinskij Zavod	Record high maximum temperature	34.0 C (93.2 F)	1.3 C (2.3 F)	71	33 of 100 (Routine)
2020-07-24	Leting	Record high maximum temperature	38.8 C (101.8 F)	0.1 C (0.2 F)	18	31 of 100 (Routine)
2020-07-25	Jinzhou	Record high maximum temperature	37.4 C (99.3 F)	2.4 C (4.3 F)	65	34 of 100 (Routine)
2020-07-25	Siping	Record high maximum temperature	35.1 C (95.2 F)	1.9 C (3.4 F)	62	32 of 100 (Routine)
2020-07-25	Zhangwu	Record high maximum temperature	34.8 C (94.6 F)	1.1 C (2.0 F)	65	29 of 100 (Routine)
2020-07-25	Chaoyang	Record high maximum temperature	39.0 C (102.2 F)	1.5 C (2.7 F)	65	29 of 100 (Routine)
2020-07-27	Aksa	Record high minimum temperature	16.9 C (62.4 F)	1.9 C (3.4 F)	58	30 of 100 (Routine)
2020-07-28	Dzalinda	Record high maximum temperature	32.5 C (90.5 F)	0.4 C (0.7 F)	81	33 of 100 (Routine)
2020-07-29	Norsk	Record high maximum temperature	32.2 C (90.0 F)	0.4 C (0.7 F)	81	33 of 100 (Routine)
2020-07-29	Nikolaevsk-Na-Amure	Record high maximum temperature	30.7 C (87.3 F)	1.4 C (2.5 F)	60	30 of 100 (Routine)
2020-07-29	Burukan	Record high maximum temperature	35.6 C (96.1 F)	2.8 C (5.0 F)	60	29 of 100 (Routine)
2020-07-30	Poronajsk	Record high maximum temperature	31.6 C (88.9 F)	1.7 C (3.1 F)	77	37 of 100 (Notable)
2020-07-30	Bomnak	Record high minimum temperature	18.5 C (65.3 F)	0.5 C (0.9 F)	82	35 of 100 (Notable)
2020-07-30	Bolsoy Santar	Record high maximum temperature	28.4 C (83.1 F)	3.7 C (6.7 F)	53	32 of 100 (Routine)
2020-07-30	Urjupino	Record high minimum temperature	17.4 C (63.3 F)	1.3 C (2.3 F)	72	31 of 100 (Routine)
2020-07-30	Norsk	Record high maximum temperature	32.8 C (91.0 F)	1.0 C (1.8 F)	70	31 of 100 (Routine)
2020-07-31	Bratoljubovka	Record high minimum temperature	18.8 C (65.8 F)	1.6 C (2.9 F)	63	30 of 100 (Routine)
2020-07-31	Urjupino	Record high minimum temperature	18.0 C (64.4 F)	3.0 C (5.4 F)	46	28 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 127 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.

Margin (C)	Years the old record stood
1.7	77
0.5	82
2.4	65
0.4	81
1.3	71
0.4	81
1.9	62
3.7	53
0.1	18
1.3	72
1.0	70
1.9	58
1.4	60
1.6	63
1.1	65
1.5	65
2.8	60
0.8	65
0.3	68
3.0	46
0.7	62
1.0	57
0.1	60
1.1	60
3.8	31
4.0	27
0.8	60
2.1	40
1.0	48
0.9	52
0.9	46
1.8	39
0.4	52
0.3	52
0.4	50
1.5	40
1.3	40
0.7	48
1.1	40
0.1	48
1.9	26
3.1	21
1.7	32
4.0	27
1.0	40
1.6	40
0.5	45
1.0	42
1.3	39
1.3	40
1.0	40
1.7	23
0.2	39
1.4	27
1.5	28
0.4	32
2.1	32
2.1	27
0.1	39
0.3	36
1.6	23
0.4	32
1.0	36
2.4	19
1.7	20
0.2	39
1.7	22
0.6	32
1.6	27
0.1	32
0.1	32
0.6	21
0.4	26
0.6	20
0.6	22
2.1	7
1.6	13
0.6	23
0.5	26
1.2	9
1.9	7
1.7	7
1.9	7
1.0	19
0.1	26
0.3	23
0.1	21
0.1	26
0.3	26
0.2	17
2.4	4
0.8	9
0.6	7
0.6	19
0.9	13
0.6	16
0.8	19
1.0	11
1.3	2
0.3	18
0.7	12
1.4	1
0.5	5
0.4	11
0.4	11
0.4	12
1.0	9
0.8	2
0.9	7
0.2	11
0.2	9
0.6	7
0.3	13
0.1	9
0.3	7
1.0	3
0.1	9
0.3	6
0.4	9
0.7	1
0.2	12
0.7	6
0.4	2
0.3	7
0.7	2
0.4	1
0.3	1

Margin (C)	Years the old record stood
1.7	77
0.5	82
2.4	65
0.4	81
1.3	71
0.4	81
1.9	62
3.7	53
0.1	18
1.3	72
1.0	70
1.9	58
1.4	60
1.6	63
1.1	65
1.5	65
2.8	60
0.8	65
0.3	68
3.0	46
0.7	62
1.0	57
0.1	60
1.1	60
3.8	31
4.0	27
0.8	60
2.1	40
1.0	48
0.9	52
0.9	46
1.8	39
0.4	52
0.3	52
0.4	50
1.5	40
1.3	40
0.7	48
1.1	40
0.1	48
1.9	26
3.1	21
1.7	32
4.0	27
1.0	40
1.6	40
0.5	45
1.0	42
1.3	39
1.3	40
1.0	40
1.7	23
0.2	39
1.4	27
1.5	28
0.4	32
2.1	32
2.1	27
0.1	39
0.3	36
1.6	23
0.4	32
1.0	36
2.4	19
1.7	20
0.2	39
1.7	22
0.6	32
1.6	27
0.1	32
0.1	32
0.6	21
0.4	26
0.6	20
0.6	22
2.1	7
1.6	13
0.6	23
0.5	26
1.2	9
1.9	7
1.7	7
1.9	7
1.0	19
0.1	26
0.3	23
0.1	21
0.1	26
0.3	26
0.2	17
2.4	4
0.8	9
0.6	7
0.6	19
0.9	13
0.6	16
0.8	19
1.0	11
1.3	2
0.3	18
0.7	12
1.4	1
0.5	5
0.4	11
0.4	11
0.4	12
1.0	9
0.8	2
0.9	7
0.2	11
0.2	9
0.6	7
0.3	13
0.1	9
0.3	7
1.0	3
0.1	9
0.3	6
0.4	9
0.7	1
0.2	12
0.7	6
0.4	2
0.3	7
0.7	2
0.4	1
0.3	1