Heat wave in China and 4 other countries, 22 to 30 November 2021

Name: Heat wave in China and 4 other countries, 22 to 30 November 2021
Start: 2021-11-22
End: 2021-11-30
Location: China, Mongolia, Russia, Kazakhstan, Korea, North

Heat wave in China and 4 other countries, 22 to 30 November 2021: 107 records at 74 stations, peak on 26 November 2021. Closed.

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

Key Facts

Heat wave in China and 4 other countries, 22 to 30 November 2021 set or tied 107 station records at 74 stations.
It ran from 22 November 2021 to 30 November 2021 (9 days) and its peak day was 26 November 2021.
Status: closed.
Wonsan set a daily record high minimum temperature of 5.9 C (42.6 F) on 29 November 2021.
The busiest day was 26 November 2021 with 27 records.
The oldest broken record in the ranked list had stood for 68 years.

Footprint

22 to 30 November 2021

The area covered by Heat wave in China and 4 other countries, 22 to 30 November 2021 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in China and 4 other countries, 22 to 30 November 2021: stations that set records in the event
Station	Type	Value	Date
Wonsan	Record high minimum temperature	5.9 C (42.6 F)	2021-11-29
Hovd	Record high maximum temperature	11.4 C (52.5 F)	2021-11-26
Dongtai	Record high maximum temperature	19.3 C (66.7 F)	2021-11-29
Jinan	Record high maximum temperature	16.4 C (61.5 F)	2021-11-25
Zhengzhou	Record high maximum temperature	20.2 C (68.4 F)	2021-11-25
Altai	Record high minimum temperature	-4.1 C (24.6 F)	2021-11-26
Yulin	Record high maximum temperature	11.6 C (52.9 F)	2021-11-26
Semej	Record high maximum temperature	8.9 C (48.0 F)	2021-11-25
Yajlju	Record high maximum temperature	11.2 C (52.2 F)	2021-11-25
Ust-Koksa	Record high maximum temperature	5.7 C (42.3 F)	2021-11-25
Yanzhou	Record high maximum temperature	17.3 C (63.1 F)	2021-11-26
Kyzyl	Record high maximum temperature	-0.5 C (31.1 F)	2021-11-26
Galuut	Record high minimum temperature	-16.1 C (3.0 F)	2021-11-27
Dandong	Record high maximum temperature	10.2 C (50.4 F)	2021-11-30
Jartai	Record high maximum temperature	12.3 C (54.1 F)	2021-11-25
Kjahta	Record high minimum temperature	-7.1 C (19.2 F)	2021-11-26
Yingkou	Record high maximum temperature	11.0 C (51.8 F)	2021-11-28
Leting	Record high minimum temperature	1.1 C (34.0 F)	2021-11-28

Records per Day

Peak day 27

Records set or tied each day from 22 November 2021 to 30 November 2021. The most in one day was 27 on 26 November 2021.

Records per day during Heat wave in China and 4 other countries, 22 to 30 November 2021
Date	Records
2021-11-22	4
2021-11-23	13
2021-11-24	5
2021-11-25	18
2021-11-26	27
2021-11-27	18
2021-11-28	14
2021-11-29	6
2021-11-30	2

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in China and 4 other countries, 22 to 30 November 2021 ranked by margin
Yajlju, 11-25	4.6 C (8.3 F)
Altai, 11-26	3.9 C (7.0 F)
Hovd, 11-26	3.0 C (5.4 F)
Galuut, 11-27	2.9 C (5.2 F)
Altai, 11-25	2.7 C (4.9 F)
Wonsan, 11-29	2.0 C (3.6 F)
Kjahta, 11-26	1.6 C (2.9 F)
Kyzyl, 11-26	1.5 C (2.7 F)
Yulin, 11-26	1.1 C (2.0 F)
Semej, 11-25	1.0 C (1.8 F)
Dongtai, 11-29	0.8 C (1.4 F)
Yanzhou, 11-26	0.8 C (1.4 F)
Jartai, 11-25	0.8 C (1.4 F)
Ust-Koksa, 11-25	0.6 C (1.1 F)
Yingkou, 11-28	0.6 C (1.1 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

107 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 China and 4 other countries, 22 to 30 November 2021
Margin (C)	Years the old record stood
2.0	60
0.8	68
3.0	56
1.1	56
0.1	66
0.5	66
3.9	47
0.2	60
0.8	56
0.5	56
1.0	48
2.9	48
4.6	28
1.5	56
0.6	56
0.8	56
0.6	56
0.1	60
2.7	47
1.6	42
0.4	56
0.8	56
2.4	47
6.6	32
3.4	47
2.1	48
5.3	36
2.9	38
2.8	38
0.4	50
2.2	42
1.5	46
1.1	40
0.4	47
3.9	32
0.1	48
0.1	46
1.3	38
2.2	31
2.2	31
0.9	38
6.4	19
0.4	32
0.4	38
0.3	43
2.0	31
0.7	34
1.0	31
0.1	40
0.5	38
0.4	40
0.6	36
1.3	31
2.2	27
1.6	31
0.5	31
0.3	30
0.3	31
1.2	31
0.8	32
3.0	19
1.3	24
0.1	31
0.1	31
1.3	23
1.4	24
0.1	31
1.2	27
2.1	26
0.1	32
0.7	32
1.4	26
0.4	24
0.3	26
1.5	28
1.4	20
0.2	24
0.2	28
0.4	28
1.1	28
0.4	27
0.8	26
0.3	24
3.7	7
0.9	16
0.8	16
0.5	31
1.4	14
1.4	16
1.0	18
4.0	6
0.2	16
1.9	12
2.6	12
1.0	11
0.3	12
0.5	14
1.0	12
0.1	7
0.2	4
0.2	8
0.2	11
1.4	12
0.9	3
0.8	3
1.1	4
0.6	4

Compared With Other Events

Station records per event

Station records in Heat wave in China and 4 other countries, 22 to 30 November 2021 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 China and 4 other countries, 22 to 30 November 2021 (this event)	107 records

Every Record Set

20 of 107

Every record set or tied during Heat wave in China and 4 other countries, 22 to 30 November 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-11-25	Jinan	Record high maximum temperature	16.4 C (61.5 F)	0.1 C (0.2 F)	66	26 of 100 (Routine)
2021-11-25	Zhengzhou	Record high maximum temperature	20.2 C (68.4 F)	0.5 C (0.9 F)	66	26 of 100 (Routine)
2021-11-25	Semej	Record high maximum temperature	8.9 C (48.0 F)	1.0 C (1.8 F)	48	25 of 100 (Routine)
2021-11-25	Yajlju	Record high maximum temperature	11.2 C (52.2 F)	4.6 C (8.3 F)	28	25 of 100 (Routine)
2021-11-25	Ust-Koksa	Record high maximum temperature	5.7 C (42.3 F)	0.6 C (1.1 F)	56	25 of 100 (Routine)
2021-11-25	Jartai	Record high maximum temperature	12.3 C (54.1 F)	0.8 C (1.4 F)	56	24 of 100 (Routine)
2021-11-25	Altai	Record high maximum temperature	3.7 C (38.7 F)	2.7 C (4.9 F)	47	24 of 100 (Routine)
2021-11-26	Hovd	Record high maximum temperature	11.4 C (52.5 F)	3.0 C (5.4 F)	56	27 of 100 (Routine)
2021-11-26	Yulin	Record high maximum temperature	11.6 C (52.9 F)	1.1 C (2.0 F)	56	26 of 100 (Routine)
2021-11-26	Altai	Record high minimum temperature	-4.1 C (24.6 F)	3.9 C (7.0 F)	47	26 of 100 (Routine)
2021-11-26	Yanzhou	Record high maximum temperature	17.3 C (63.1 F)	0.8 C (1.4 F)	56	25 of 100 (Routine)
2021-11-26	Kyzyl	Record high maximum temperature	-0.5 C (31.1 F)	1.5 C (2.7 F)	56	25 of 100 (Routine)
2021-11-26	Kjahta	Record high minimum temperature	-7.1 C (19.2 F)	1.6 C (2.9 F)	42	24 of 100 (Routine)
2021-11-27	Yanzhou	Record high maximum temperature	17.2 C (63.0 F)	0.5 C (0.9 F)	56	25 of 100 (Routine)
2021-11-27	Galuut	Record high minimum temperature	-16.1 C (3.0 F)	2.9 C (5.2 F)	48	25 of 100 (Routine)
2021-11-28	Yingkou	Record high maximum temperature	11.0 C (51.8 F)	0.6 C (1.1 F)	56	24 of 100 (Routine)
2021-11-28	Leting	Record high minimum temperature	1.1 C (34.0 F)	0.1 C (0.2 F)	60	24 of 100 (Routine)
2021-11-29	Wonsan	Record high minimum temperature	5.9 C (42.6 F)	2.0 C (3.6 F)	60	28 of 100 (Routine)
2021-11-29	Dongtai	Record high maximum temperature	19.3 C (66.7 F)	0.8 C (1.4 F)	68	27 of 100 (Routine)
2021-11-30	Dandong	Record high maximum temperature	10.2 C (50.4 F)	0.2 C (0.4 F)	60	25 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 107 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
2.0	60
0.8	68
3.0	56
1.1	56
0.1	66
0.5	66
3.9	47
0.2	60
0.8	56
0.5	56
1.0	48
2.9	48
4.6	28
1.5	56
0.6	56
0.8	56
0.6	56
0.1	60
2.7	47
1.6	42
0.4	56
0.8	56
2.4	47
6.6	32
3.4	47
2.1	48
5.3	36
2.9	38
2.8	38
0.4	50
2.2	42
1.5	46
1.1	40
0.4	47
3.9	32
0.1	48
0.1	46
1.3	38
2.2	31
2.2	31
0.9	38
6.4	19
0.4	32
0.4	38
0.3	43
2.0	31
0.7	34
1.0	31
0.1	40
0.5	38
0.4	40
0.6	36
1.3	31
2.2	27
1.6	31
0.5	31
0.3	30
0.3	31
1.2	31
0.8	32
3.0	19
1.3	24
0.1	31
0.1	31
1.3	23
1.4	24
0.1	31
1.2	27
2.1	26
0.1	32
0.7	32
1.4	26
0.4	24
0.3	26
1.5	28
1.4	20
0.2	24
0.2	28
0.4	28
1.1	28
0.4	27
0.8	26
0.3	24
3.7	7
0.9	16
0.8	16
0.5	31
1.4	14
1.4	16
1.0	18
4.0	6
0.2	16
1.9	12
2.6	12
1.0	11
0.3	12
0.5	14
1.0	12
0.1	7
0.2	4
0.2	8
0.2	11
1.4	12
0.9	3
0.8	3
1.1	4
0.6	4

Margin (C)	Years the old record stood
2.0	60
0.8	68
3.0	56
1.1	56
0.1	66
0.5	66
3.9	47
0.2	60
0.8	56
0.5	56
1.0	48
2.9	48
4.6	28
1.5	56
0.6	56
0.8	56
0.6	56
0.1	60
2.7	47
1.6	42
0.4	56
0.8	56
2.4	47
6.6	32
3.4	47
2.1	48
5.3	36
2.9	38
2.8	38
0.4	50
2.2	42
1.5	46
1.1	40
0.4	47
3.9	32
0.1	48
0.1	46
1.3	38
2.2	31
2.2	31
0.9	38
6.4	19
0.4	32
0.4	38
0.3	43
2.0	31
0.7	34
1.0	31
0.1	40
0.5	38
0.4	40
0.6	36
1.3	31
2.2	27
1.6	31
0.5	31
0.3	30
0.3	31
1.2	31
0.8	32
3.0	19
1.3	24
0.1	31
0.1	31
1.3	23
1.4	24
0.1	31
1.2	27
2.1	26
0.1	32
0.7	32
1.4	26
0.4	24
0.3	26
1.5	28
1.4	20
0.2	24
0.2	28
0.4	28
1.1	28
0.4	27
0.8	26
0.3	24
3.7	7
0.9	16
0.8	16
0.5	31
1.4	14
1.4	16
1.0	18
4.0	6
0.2	16
1.9	12
2.6	12
1.0	11
0.3	12
0.5	14
1.0	12
0.1	7
0.2	4
0.2	8
0.2	11
1.4	12
0.9	3
0.8	3
1.1	4
0.6	4