Heat wave in Russia and 14 other countries, 15 April to 14 May 2020

Name: Heat wave in Russia and 14 other countries, 15 April to 14 May 2020
Start: 2020-04-15
End: 2020-05-14
Location: Russia, China, Mongolia, Kazakhstan, Japan, Thailand, Malaysia, Indonesia, Korea, North, Korea, South, Vietnam, Kyrgyzstan, Uzbekistan, Macau S.A.R, Singapore

Heat wave in Russia and 14 other countries, 15 April to 14 May 2020: 1,218 records at 439 stations, peak on 1 May 2020. Closed.

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

Key Facts

Heat wave in Russia and 14 other countries, 15 April to 14 May 2020 set or tied 1,218 station records at 439 stations.
It ran from 15 April 2020 to 14 May 2020 (30 days) and its peak day was 1 May 2020.
Status: closed.
Poronajsk set a monthly record high minimum temperature of 6.3 C (43.3 F) on 30 April 2020.
The busiest day was 1 May 2020 with 114 records.
The oldest broken record in the ranked list had stood for 122 years.

Footprint

15 April to 14 May 2020

The area covered by Heat wave in Russia and 14 other countries, 15 April to 14 May 2020 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Russia and 14 other countries, 15 April to 14 May 2020: stations that set records in the event
Station	Type	Value	Date
Poronajsk	Record high minimum temperature	6.3 C (43.3 F)	2020-04-30
Tashkent	Record high maximum temperature	36.0 C (96.8 F)	2020-04-27
Maanti	Record high minimum temperature	9.4 C (48.9 F)	2020-05-01
Turgaj	Record high maximum temperature	27.9 C (82.2 F)	2020-04-21
Achinsk	Record high maximum temperature	27.5 C (81.5 F)	2020-04-24
Ubon Ratchathani	Record high minimum temperature	30.0 C (86.0 F)	2020-05-09
Aleksandrovskoe	Record high maximum temperature	24.5 C (76.1 F)	2020-04-23
Semej	Record high maximum temperature	32.1 C (89.8 F)	2020-04-24
Zmeinogorsk	Record high maximum temperature	29.9 C (85.8 F)	2020-04-24
Gorjacinsk	Record high minimum temperature	6.2 C (43.2 F)	2020-04-30
Kjahta	Record high minimum temperature	9.0 C (48.2 F)	2020-04-30
Vanavara	Record high maximum temperature	25.3 C (77.5 F)	2020-04-25
Babuskin	Record high minimum temperature	4.6 C (40.3 F)	2020-04-30
Enisejsk	Record high maximum temperature	26.5 C (79.7 F)	2020-04-25
Underkhaan	Record high minimum temperature	13.5 C (56.3 F)	2020-05-01
Timiryazevskij	Record high maximum temperature	29.4 C (84.9 F)	2020-05-02
Yajlju	Record high maximum temperature	28.2 C (82.8 F)	2020-04-25
Ulan-Ude	Record high minimum temperature	7.6 C (45.7 F)	2020-04-30

Records per Day

Peak day 114

Records set or tied each day from 15 April 2020 to 14 May 2020. The most in one day was 114 on 1 May 2020.

Records per day during Heat wave in Russia and 14 other countries, 15 April to 14 May 2020
Date	Records
2020-04-15	1
2020-04-17	2
2020-04-18	6
2020-04-19	3
2020-04-20	7
2020-04-21	34
2020-04-22	62
2020-04-23	80
2020-04-24	69
2020-04-25	76
2020-04-26	44
2020-04-27	50
2020-04-28	59
2020-04-29	105
2020-04-30	103
2020-05-01	114
2020-05-02	94
2020-05-03	69
2020-05-04	48
2020-05-05	45
2020-05-06	27
2020-05-07	25
2020-05-08	26
2020-05-09	29
2020-05-10	28
2020-05-11	8
2020-05-12	2
2020-05-13	1
2020-05-14	1

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Russia and 14 other countries, 15 April to 14 May 2020 ranked by margin
Maanti, 05-01	9.4 C (16.9 F)
Underkhaan, 05-01	8.5 C (15.3 F)
Achinsk, 04-24	6.1 C (11.0 F)
Vanavara, 04-25	4.6 C (8.3 F)
Zmeinogorsk, 04-24	4.5 C (8.1 F)
Semej, 04-24	4.3 C (7.7 F)
Yajlju, 04-25	4.3 C (7.7 F)
Achinsk, 04-25	4.2 C (7.6 F)
Enisejsk, 04-25	3.7 C (6.7 F)
Turgaj, 04-21	2.8 C (5.0 F)
Poronajsk, 04-30	2.3 C (4.1 F)
Gorjacinsk, 04-30	2.3 C (4.1 F)
Semej, 04-23	1.9 C (3.4 F)
Kjahta, 04-30	1.5 C (2.7 F)
Aleksandrovskoe, 04-23	1.2 C (2.2 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

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 Russia and 14 other countries, 15 April to 14 May 2020
Margin (C)	Years the old record stood
2.3	102
0.6	107
9.4	63
2.8	119
6.1	81
0.3	47
4.3	91
1.2	76
2.3	70
1.5	122
4.5	91
4.6	53
0.6	122
8.5	51
3.7	81
4.2	81
1.1	95
1.9	93
0.7	94
4.3	81
2.1	66
3.8	80
1.2	68
4.1	47
0.7	93
9.6	50
2.0	53
7.2	51
0.2	32
2.1	80
0.2	61
2.2	47
2.2	81
1.3	43
2.0	66
3.5	66
0.2	61
3.8	61
0.8	59
0.1	47
1.7	48
1.2	43
0.3	56
2.9	66
1.6	64
0.2	48
0.6	53
0.3	81
7.5	51
1.5	75
1.0	76
0.5	47
1.0	48
0.7	48
3.2	60
4.4	51
0.1	48
1.6	66
2.6	62
1.5	62
1.7	69
5.9	9
4.9	53
3.5	53
0.4	45
0.3	48
2.3	60
1.2	66
0.2	75
6.0	51
2.8	60
2.6	60
2.0	60
1.1	68
6.7	32
2.0	59
0.3	46
0.4	43
0.8	39
4.2	51
8.5	23
0.9	62
0.4	38
3.4	53
2.1	61
0.2	39
1.3	66
1.3	60
0.6	37
0.1	37
1.4	62
0.7	67
2.3	57
2.8	53
1.3	62
1.0	62
3.0	51
5.3	51
4.7	16
5.3	42
0.8	69
1.9	58
3.0	53
3.9	52
1.6	61
0.7	69
2.6	50
1.0	47
0.5	66
0.1	36
3.4	51
6.0	31
1.0	60
0.5	62
1.8	60
1.7	60
0.4	66
1.0	62
0.8	62
1.7	50
0.1	68
1.3	61
0.6	62
0.5	31
3.2	53
4.9	45
2.9	53
5.6	11
2.9	53
2.2	44
2.4	23
0.3	60
3.1	51
2.3	51
0.5	60
0.6	60
0.6	59
0.6	59
0.2	68
4.1	9
2.1	53
2.1	53
1.3	53
1.6	59
2.3	53
0.8	59
2.5	52
3.9	34
2.2	53
0.4	60
1.1	59
0.3	61
1.6	26
2.6	51
4.3	31
1.0	53
1.0	23
5.2	1
3.2	53
2.2	23
1.5	44
1.8	53
1.8	51
4.6	5
0.1	51
0.6	53
1.2	12
1.6	23
0.1	1
0.4	16
1.2	22
2.5	53
1.1	53
1.6	14
1.3	51
1.9	35
0.6	50
0.8	51
1.2	51
0.7	51
1.1	51
2.9	35
2.1	32
0.3	35
1.7	51
4.0	39
1.6	22
1.5	22
2.5	9
0.8	53
1.2	53
2.9	9
0.6	22
1.2	12
4.0	24
4.5	3
1.0	53
1.2	52
1.4	48
0.7	22

Compared With Other Events

Station records per event

Station records in Heat wave in Russia and 14 other countries, 15 April to 14 May 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 14 other countries, 15 April to 14 May 2020 (this event)	1,218 records

Every Record Set

20 of 1,218

Every record set or tied during Heat wave in Russia and 14 other countries, 15 April to 14 May 2020, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2020-04-21	Turgaj	Record high maximum temperature	27.9 C (82.2 F)	2.8 C (5.0 F)	119	43 of 100 (Notable)
2020-04-23	Aleksandrovskoe	Record high maximum temperature	24.5 C (76.1 F)	1.2 C (2.2 F)	76	42 of 100 (Notable)
2020-04-23	Semej	Record high maximum temperature	32.3 C (90.1 F)	1.9 C (3.4 F)	93	39 of 100 (Notable)
2020-04-24	Achinsk	Record high maximum temperature	27.5 C (81.5 F)	6.1 C (11.0 F)	81	43 of 100 (Notable)
2020-04-24	Semej	Record high maximum temperature	32.1 C (89.8 F)	4.3 C (7.7 F)	91	42 of 100 (Notable)
2020-04-24	Zmeinogorsk	Record high maximum temperature	29.9 C (85.8 F)	4.5 C (8.1 F)	91	42 of 100 (Notable)
2020-04-25	Vanavara	Record high maximum temperature	25.3 C (77.5 F)	4.6 C (8.3 F)	53	41 of 100 (Notable)
2020-04-25	Enisejsk	Record high maximum temperature	26.5 C (79.7 F)	3.7 C (6.7 F)	81	40 of 100 (Notable)
2020-04-25	Achinsk	Record high maximum temperature	26.2 C (79.2 F)	4.2 C (7.6 F)	81	40 of 100 (Notable)
2020-04-25	Yajlju	Record high maximum temperature	28.2 C (82.8 F)	4.3 C (7.7 F)	81	39 of 100 (Notable)
2020-04-27	Tashkent	Record high maximum temperature	36.0 C (96.8 F)	0.6 C (1.1 F)	107	51 of 100 (Notable)
2020-04-30	Poronajsk	Record high minimum temperature	6.3 C (43.3 F)	2.3 C (4.1 F)	102	55 of 100 (Notable)
2020-04-30	Gorjacinsk	Record high minimum temperature	6.2 C (43.2 F)	2.3 C (4.1 F)	70	42 of 100 (Notable)
2020-04-30	Kjahta	Record high minimum temperature	9.0 C (48.2 F)	1.5 C (2.7 F)	122	42 of 100 (Notable)
2020-04-30	Babuskin	Record high minimum temperature	4.6 C (40.3 F)	0.6 C (1.1 F)	122	41 of 100 (Notable)
2020-04-30	Ulan-Ude	Record high minimum temperature	7.6 C (45.7 F)	0.7 C (1.3 F)	94	39 of 100 (Notable)
2020-05-01	Maanti	Record high minimum temperature	9.4 C (48.9 F)	9.4 C (16.9 F)	63	44 of 100 (Notable)
2020-05-01	Underkhaan	Record high minimum temperature	13.5 C (56.3 F)	8.5 C (15.3 F)	51	40 of 100 (Notable)
2020-05-02	Timiryazevskij	Record high maximum temperature	29.4 C (84.9 F)	1.1 C (2.0 F)	95	40 of 100 (Notable)
2020-05-09	Ubon Ratchathani	Record high minimum temperature	30.0 C (86.0 F)	0.3 C (0.5 F)	47	43 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 1,218 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
2.3	102
0.6	107
9.4	63
2.8	119
6.1	81
0.3	47
4.3	91
1.2	76
2.3	70
1.5	122
4.5	91
4.6	53
0.6	122
8.5	51
3.7	81
4.2	81
1.1	95
1.9	93
0.7	94
4.3	81
2.1	66
3.8	80
1.2	68
4.1	47
0.7	93
9.6	50
2.0	53
7.2	51
0.2	32
2.1	80
0.2	61
2.2	47
2.2	81
1.3	43
2.0	66
3.5	66
0.2	61
3.8	61
0.8	59
0.1	47
1.7	48
1.2	43
0.3	56
2.9	66
1.6	64
0.2	48
0.6	53
0.3	81
7.5	51
1.5	75
1.0	76
0.5	47
1.0	48
0.7	48
3.2	60
4.4	51
0.1	48
1.6	66
2.6	62
1.5	62
1.7	69
5.9	9
4.9	53
3.5	53
0.4	45
0.3	48
2.3	60
1.2	66
0.2	75
6.0	51
2.8	60
2.6	60
2.0	60
1.1	68
6.7	32
2.0	59
0.3	46
0.4	43
0.8	39
4.2	51
8.5	23
0.9	62
0.4	38
3.4	53
2.1	61
0.2	39
1.3	66
1.3	60
0.6	37
0.1	37
1.4	62
0.7	67
2.3	57
2.8	53
1.3	62
1.0	62
3.0	51
5.3	51
4.7	16
5.3	42
0.8	69
1.9	58
3.0	53
3.9	52
1.6	61
0.7	69
2.6	50
1.0	47
0.5	66
0.1	36
3.4	51
6.0	31
1.0	60
0.5	62
1.8	60
1.7	60
0.4	66
1.0	62
0.8	62
1.7	50
0.1	68
1.3	61
0.6	62
0.5	31
3.2	53
4.9	45
2.9	53
5.6	11
2.9	53
2.2	44
2.4	23
0.3	60
3.1	51
2.3	51
0.5	60
0.6	60
0.6	59
0.6	59
0.2	68
4.1	9
2.1	53
2.1	53
1.3	53
1.6	59
2.3	53
0.8	59
2.5	52
3.9	34
2.2	53
0.4	60
1.1	59
0.3	61
1.6	26
2.6	51
4.3	31
1.0	53
1.0	23
5.2	1
3.2	53
2.2	23
1.5	44
1.8	53
1.8	51
4.6	5
0.1	51
0.6	53
1.2	12
1.6	23
0.1	1
0.4	16
1.2	22
2.5	53
1.1	53
1.6	14
1.3	51
1.9	35
0.6	50
0.8	51
1.2	51
0.7	51
1.1	51
2.9	35
2.1	32
0.3	35
1.7	51
4.0	39
1.6	22
1.5	22
2.5	9
0.8	53
1.2	53
2.9	9
0.6	22
1.2	12
4.0	24
4.5	3
1.0	53
1.2	52
1.4	48
0.7	22

Margin (C)	Years the old record stood
2.3	102
0.6	107
9.4	63
2.8	119
6.1	81
0.3	47
4.3	91
1.2	76
2.3	70
1.5	122
4.5	91
4.6	53
0.6	122
8.5	51
3.7	81
4.2	81
1.1	95
1.9	93
0.7	94
4.3	81
2.1	66
3.8	80
1.2	68
4.1	47
0.7	93
9.6	50
2.0	53
7.2	51
0.2	32
2.1	80
0.2	61
2.2	47
2.2	81
1.3	43
2.0	66
3.5	66
0.2	61
3.8	61
0.8	59
0.1	47
1.7	48
1.2	43
0.3	56
2.9	66
1.6	64
0.2	48
0.6	53
0.3	81
7.5	51
1.5	75
1.0	76
0.5	47
1.0	48
0.7	48
3.2	60
4.4	51
0.1	48
1.6	66
2.6	62
1.5	62
1.7	69
5.9	9
4.9	53
3.5	53
0.4	45
0.3	48
2.3	60
1.2	66
0.2	75
6.0	51
2.8	60
2.6	60
2.0	60
1.1	68
6.7	32
2.0	59
0.3	46
0.4	43
0.8	39
4.2	51
8.5	23
0.9	62
0.4	38
3.4	53
2.1	61
0.2	39
1.3	66
1.3	60
0.6	37
0.1	37
1.4	62
0.7	67
2.3	57
2.8	53
1.3	62
1.0	62
3.0	51
5.3	51
4.7	16
5.3	42
0.8	69
1.9	58
3.0	53
3.9	52
1.6	61
0.7	69
2.6	50
1.0	47
0.5	66
0.1	36
3.4	51
6.0	31
1.0	60
0.5	62
1.8	60
1.7	60
0.4	66
1.0	62
0.8	62
1.7	50
0.1	68
1.3	61
0.6	62
0.5	31
3.2	53
4.9	45
2.9	53
5.6	11
2.9	53
2.2	44
2.4	23
0.3	60
3.1	51
2.3	51
0.5	60
0.6	60
0.6	59
0.6	59
0.2	68
4.1	9
2.1	53
2.1	53
1.3	53
1.6	59
2.3	53
0.8	59
2.5	52
3.9	34
2.2	53
0.4	60
1.1	59
0.3	61
1.6	26
2.6	51
4.3	31
1.0	53
1.0	23
5.2	1
3.2	53
2.2	23
1.5	44
1.8	53
1.8	51
4.6	5
0.1	51
0.6	53
1.2	12
1.6	23
0.1	1
0.4	16
1.2	22
2.5	53
1.1	53
1.6	14
1.3	51
1.9	35
0.6	50
0.8	51
1.2	51
0.7	51
1.1	51
2.9	35
2.1	32
0.3	35
1.7	51
4.0	39
1.6	22
1.5	22
2.5	9
0.8	53
1.2	53
2.9	9
0.6	22
1.2	12
4.0	24
4.5	3
1.0	53
1.2	52
1.4	48
0.7	22