Heat wave in China and 2 other countries, 23 January to 14 February 2023

Name: Heat wave in China and 2 other countries, 23 January to 14 February 2023
Start: 2023-01-23
End: 2023-02-14
Location: China, Thailand, Vietnam

Heat wave in China and 2 other countries, 23 January to 14 February 2023: 230 records at 99 stations, peak on 1 February 2023. Closed.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Key Facts

Heat wave in China and 2 other countries, 23 January to 14 February 2023 set or tied 230 station records at 99 stations.
It ran from 23 January 2023 to 14 February 2023 (23 days) and its peak day was 1 February 2023.
Status: closed.
Huili set a daily record high minimum temperature of 10.2 C (50.4 F) on 8 February 2023.
The busiest day was 1 February 2023 with 36 records.
The oldest broken record in the ranked list had stood for 72 years.

Footprint

23 January to 14 February 2023

The area covered by Heat wave in China and 2 other countries, 23 January to 14 February 2023 is outlined, with 17 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in China and 2 other countries, 23 January to 14 February 2023: stations that set records in the event
Station	Type	Value	Date
Huili	Record high minimum temperature	10.2 C (50.4 F)	2023-02-08
Beijing	Record high maximum temperature	14.0 C (57.2 F)	2023-01-31
Wuhan	Record high maximum temperature	21.4 C (70.5 F)	2023-02-01
Dulan	Record high maximum temperature	12.3 C (54.1 F)	2023-02-01
Kunming	Record high maximum temperature	24.9 C (76.8 F)	2023-02-02
Nakhon Phanom	Record high minimum temperature	24.2 C (75.6 F)	2023-02-11
Yuanping	Record high maximum temperature	11.3 C (52.3 F)	2023-01-31
Tianjin	Record high maximum temperature	13.6 C (56.5 F)	2023-01-31
Chengde	Record high maximum temperature	8.6 C (47.5 F)	2023-02-01
Khlong Yai	Record high minimum temperature	25.4 C (77.7 F)	2023-02-12
Xichang	Record high maximum temperature	24.4 C (75.9 F)	2023-01-26
Tengchong	Record high maximum temperature	21.1 C (70.0 F)	2023-01-29
Wushaoling	Record high maximum temperature	10.2 C (50.4 F)	2023-01-30
Chengshantou	Record high maximum temperature	9.9 C (49.8 F)	2023-01-31
Udon Thani	Record high maximum temperature	37.0 C (98.6 F)	2023-02-11
Qionghai	Record high maximum temperature	30.8 C (87.4 F)	2023-02-12
Deqen	Record high maximum temperature	13.3 C (55.9 F)	2023-01-26

Records per Day

Peak day 36

Records set or tied each day from 23 January 2023 to 14 February 2023. The most in one day was 36 on 1 February 2023.

Records per day during Heat wave in China and 2 other countries, 23 January to 14 February 2023
Date	Records
2023-01-23	1
2023-01-24	2
2023-01-25	6
2023-01-26	15
2023-01-27	6
2023-01-28	6
2023-01-29	6
2023-01-30	22
2023-01-31	23
2023-02-01	36
2023-02-02	11
2023-02-03	10
2023-02-04	11
2023-02-05	7
2023-02-06	4
2023-02-07	7
2023-02-08	5
2023-02-09	3
2023-02-10	3
2023-02-11	10
2023-02-12	22
2023-02-13	8
2023-02-14	6

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in China and 2 other countries, 23 January to 14 February 2023 ranked by margin
Huili, 02-07	4.3 C (7.7 F)
Tianjin, 01-31	3.7 C (6.7 F)
Huili, 02-08	3.6 C (6.5 F)
Wuhan, 02-01	3.6 C (6.5 F)
Beijing, 01-31	3.3 C (5.9 F)
Dulan, 02-01	3.3 C (5.9 F)
Huili, 02-03	2.9 C (5.2 F)
Chengshantou, 01-31	2.9 C (5.2 F)
Yuanping, 01-31	2.2 C (4.0 F)
Kunming, 02-02	2.1 C (3.8 F)
Nakhon Phanom, 02-11	2.1 C (3.8 F)
Xichang, 01-26	2.1 C (3.8 F)
Chengde, 02-01	2.0 C (3.6 F)
Khlong Yai, 02-12	1.1 C (2.0 F)
Tengchong, 01-29	0.9 C (1.6 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

230 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 2 other countries, 23 January to 14 February 2023
Margin (C)	Years the old record stood
3.6	57
3.3	72
2.9	63
3.6	72
3.3	68
2.1	72
2.1	68
2.2	68
2.0	72
3.7	47
1.1	56
0.3	40
2.9	49
2.1	56
4.3	23
0.9	61
0.8	71
0.3	72
0.5	69
0.5	69
0.2	72
2.5	56
0.3	67
1.0	61
2.8	36
2.8	36
1.9	56
2.3	56
0.5	61
0.1	69
2.4	47
0.9	56
2.5	40
0.5	61
0.6	61
0.5	61
0.7	56
1.7	40
0.5	56
0.9	56
1.9	44
0.2	60
0.2	56
0.3	63
1.5	17
0.7	18
3.8	16
2.1	0
0.3	23
0.7	20
0.2	56
0.1	56
1.1	47
2.3	37
1.1	47
1.2	8
0.1	56
1.0	48
1.2	40
3.5	17
0.7	44
0.9	47
0.4	47
0.3	49
0.8	8
0.9	44
2.5	24
0.5	44
0.9	40
1.8	28
0.2	8
0.1	40
2.7	17
0.9	32
0.2	8
1.1	24
1.0	37
0.3	39
1.3	17
0.6	0
1.7	29
0.7	36
0.2	37
0.3	35
0.1	35
0.2	35
3.1	16
2.0	24
2.2	13
0.9	29
1.5	16
0.3	32
2.2	17
0.8	24
0.8	24
1.2	29
2.9	16
0.1	36
0.1	36
0.8	28
1.1	32
0.8	24
1.9	21
2.6	16
0.9	24
1.9	13
1.1	24
0.4	27
2.8	13
0.8	17
1.3	23
0.5	28
0.4	24
1.7	24
1.9	16
1.4	21
0.7	24
1.0	21
2.5	8
1.1	21
0.8	21
0.4	24
1.3	16
0.3	24
2.1	8
0.4	24
0.2	27
0.2	28
0.2	28
0.2	28
0.5	21
0.2	24
0.2	24
0.3	28
0.9	23
0.3	24
0.2	28
1.3	16
0.2	29
0.5	21
0.3	27
1.4	13
1.1	21
2.1	13
0.7	21
0.2	24
0.9	17
0.2	24
0.2	24
1.0	21
0.1	24
1.4	16
2.2	13
0.5	17
0.2	24
0.8	12
0.4	21
0.2	21
3.7	1
0.4	17
0.3	17
0.4	17
0.3	17
0.7	16
1.6	8
0.7	13
0.1	21
0.4	13
1.5	8
1.3	8
1.0	8
0.2	17
0.3	17
1.9	8
0.7	16
0.8	16
1.3	13
0.1	17
0.8	12
0.7	12
0.8	1
1.7	1
1.9	4
0.6	8
0.4	16
1.4	8
1.8	1
0.3	13
0.6	12
0.6	12
0.6	12
1.2	0
0.6	12
0.6	12
1.0	12
1.1	8
1.1	4
0.5	9
0.6	8
1.0	8

Compared With Other Events

Station records per event

Station records in Heat wave in China and 2 other countries, 23 January to 14 February 2023 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 2 other countries, 23 January to 14 February 2023 (this event)	230 records

Every Record Set

20 of 230

Every record set or tied during Heat wave in China and 2 other countries, 23 January to 14 February 2023, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2023-01-23	Huili	Record high maximum temperature	21.4 C (70.5 F)	0.5 C (0.9 F)	69	28 of 100 (Routine)
2023-01-26	Xichang	Record high maximum temperature	24.4 C (75.9 F)	2.1 C (3.8 F)	56	29 of 100 (Routine)
2023-01-26	Deqen	Record high maximum temperature	13.3 C (55.9 F)	0.5 C (0.9 F)	69	28 of 100 (Routine)
2023-01-29	Tengchong	Record high maximum temperature	21.1 C (70.0 F)	0.9 C (1.6 F)	61	29 of 100 (Routine)
2023-01-30	Wushaoling	Record high maximum temperature	10.2 C (50.4 F)	0.3 C (0.5 F)	40	29 of 100 (Routine)
2023-01-31	Beijing	Record high maximum temperature	14.0 C (57.2 F)	3.3 C (5.9 F)	72	36 of 100 (Notable)
2023-01-31	Yuanping	Record high maximum temperature	11.3 C (52.3 F)	2.2 C (4.0 F)	68	32 of 100 (Routine)
2023-01-31	Tianjin	Record high maximum temperature	13.6 C (56.5 F)	3.7 C (6.7 F)	47	31 of 100 (Routine)
2023-01-31	Chengshantou	Record high maximum temperature	9.9 C (49.8 F)	2.9 C (5.2 F)	49	29 of 100 (Routine)
2023-02-01	Wuhan	Record high maximum temperature	21.4 C (70.5 F)	3.6 C (6.5 F)	72	34 of 100 (Routine)
2023-02-01	Dulan	Record high maximum temperature	12.3 C (54.1 F)	3.3 C (5.9 F)	68	33 of 100 (Routine)
2023-02-01	Chengde	Record high maximum temperature	8.6 C (47.5 F)	2.0 C (3.6 F)	72	31 of 100 (Routine)
2023-02-02	Kunming	Record high maximum temperature	24.9 C (76.8 F)	2.1 C (3.8 F)	72	33 of 100 (Routine)
2023-02-03	Huili	Record high minimum temperature	11.2 C (52.2 F)	2.9 C (5.2 F)	63	36 of 100 (Notable)
2023-02-07	Huili	Record high minimum temperature	11.1 C (52.0 F)	4.3 C (7.7 F)	23	29 of 100 (Routine)
2023-02-08	Huili	Record high minimum temperature	10.2 C (50.4 F)	3.6 C (6.5 F)	57	37 of 100 (Notable)
2023-02-11	Nakhon Phanom	Record high minimum temperature	24.2 C (75.6 F)	2.1 C (3.8 F)	68	33 of 100 (Routine)
2023-02-11	Udon Thani	Record high maximum temperature	37.0 C (98.6 F)	0.3 C (0.5 F)	72	29 of 100 (Routine)
2023-02-12	Khlong Yai	Record high minimum temperature	25.4 C (77.7 F)	1.1 C (2.0 F)	56	30 of 100 (Routine)
2023-02-12	Qionghai	Record high maximum temperature	30.8 C (87.4 F)	0.8 C (1.4 F)	71	29 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 230 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 2026-10-12. 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
3.6	57
3.3	72
2.9	63
3.6	72
3.3	68
2.1	72
2.1	68
2.2	68
2.0	72
3.7	47
1.1	56
0.3	40
2.9	49
2.1	56
4.3	23
0.9	61
0.8	71
0.3	72
0.5	69
0.5	69
0.2	72
2.5	56
0.3	67
1.0	61
2.8	36
2.8	36
1.9	56
2.3	56
0.5	61
0.1	69
2.4	47
0.9	56
2.5	40
0.5	61
0.6	61
0.5	61
0.7	56
1.7	40
0.5	56
0.9	56
1.9	44
0.2	60
0.2	56
0.3	63
1.5	17
0.7	18
3.8	16
2.1	0
0.3	23
0.7	20
0.2	56
0.1	56
1.1	47
2.3	37
1.1	47
1.2	8
0.1	56
1.0	48
1.2	40
3.5	17
0.7	44
0.9	47
0.4	47
0.3	49
0.8	8
0.9	44
2.5	24
0.5	44
0.9	40
1.8	28
0.2	8
0.1	40
2.7	17
0.9	32
0.2	8
1.1	24
1.0	37
0.3	39
1.3	17
0.6	0
1.7	29
0.7	36
0.2	37
0.3	35
0.1	35
0.2	35
3.1	16
2.0	24
2.2	13
0.9	29
1.5	16
0.3	32
2.2	17
0.8	24
0.8	24
1.2	29
2.9	16
0.1	36
0.1	36
0.8	28
1.1	32
0.8	24
1.9	21
2.6	16
0.9	24
1.9	13
1.1	24
0.4	27
2.8	13
0.8	17
1.3	23
0.5	28
0.4	24
1.7	24
1.9	16
1.4	21
0.7	24
1.0	21
2.5	8
1.1	21
0.8	21
0.4	24
1.3	16
0.3	24
2.1	8
0.4	24
0.2	27
0.2	28
0.2	28
0.2	28
0.5	21
0.2	24
0.2	24
0.3	28
0.9	23
0.3	24
0.2	28
1.3	16
0.2	29
0.5	21
0.3	27
1.4	13
1.1	21
2.1	13
0.7	21
0.2	24
0.9	17
0.2	24
0.2	24
1.0	21
0.1	24
1.4	16
2.2	13
0.5	17
0.2	24
0.8	12
0.4	21
0.2	21
3.7	1
0.4	17
0.3	17
0.4	17
0.3	17
0.7	16
1.6	8
0.7	13
0.1	21
0.4	13
1.5	8
1.3	8
1.0	8
0.2	17
0.3	17
1.9	8
0.7	16
0.8	16
1.3	13
0.1	17
0.8	12
0.7	12
0.8	1
1.7	1
1.9	4
0.6	8
0.4	16
1.4	8
1.8	1
0.3	13
0.6	12
0.6	12
0.6	12
1.2	0
0.6	12
0.6	12
1.0	12
1.1	8
1.1	4
0.5	9
0.6	8
1.0	8

Margin (C)	Years the old record stood
3.6	57
3.3	72
2.9	63
3.6	72
3.3	68
2.1	72
2.1	68
2.2	68
2.0	72
3.7	47
1.1	56
0.3	40
2.9	49
2.1	56
4.3	23
0.9	61
0.8	71
0.3	72
0.5	69
0.5	69
0.2	72
2.5	56
0.3	67
1.0	61
2.8	36
2.8	36
1.9	56
2.3	56
0.5	61
0.1	69
2.4	47
0.9	56
2.5	40
0.5	61
0.6	61
0.5	61
0.7	56
1.7	40
0.5	56
0.9	56
1.9	44
0.2	60
0.2	56
0.3	63
1.5	17
0.7	18
3.8	16
2.1	0
0.3	23
0.7	20
0.2	56
0.1	56
1.1	47
2.3	37
1.1	47
1.2	8
0.1	56
1.0	48
1.2	40
3.5	17
0.7	44
0.9	47
0.4	47
0.3	49
0.8	8
0.9	44
2.5	24
0.5	44
0.9	40
1.8	28
0.2	8
0.1	40
2.7	17
0.9	32
0.2	8
1.1	24
1.0	37
0.3	39
1.3	17
0.6	0
1.7	29
0.7	36
0.2	37
0.3	35
0.1	35
0.2	35
3.1	16
2.0	24
2.2	13
0.9	29
1.5	16
0.3	32
2.2	17
0.8	24
0.8	24
1.2	29
2.9	16
0.1	36
0.1	36
0.8	28
1.1	32
0.8	24
1.9	21
2.6	16
0.9	24
1.9	13
1.1	24
0.4	27
2.8	13
0.8	17
1.3	23
0.5	28
0.4	24
1.7	24
1.9	16
1.4	21
0.7	24
1.0	21
2.5	8
1.1	21
0.8	21
0.4	24
1.3	16
0.3	24
2.1	8
0.4	24
0.2	27
0.2	28
0.2	28
0.2	28
0.5	21
0.2	24
0.2	24
0.3	28
0.9	23
0.3	24
0.2	28
1.3	16
0.2	29
0.5	21
0.3	27
1.4	13
1.1	21
2.1	13
0.7	21
0.2	24
0.9	17
0.2	24
0.2	24
1.0	21
0.1	24
1.4	16
2.2	13
0.5	17
0.2	24
0.8	12
0.4	21
0.2	21
3.7	1
0.4	17
0.3	17
0.4	17
0.3	17
0.7	16
1.6	8
0.7	13
0.1	21
0.4	13
1.5	8
1.3	8
1.0	8
0.2	17
0.3	17
1.9	8
0.7	16
0.8	16
1.3	13
0.1	17
0.8	12
0.7	12
0.8	1
1.7	1
1.9	4
0.6	8
0.4	16
1.4	8
1.8	1
0.3	13
0.6	12
0.6	12
0.6	12
1.2	0
0.6	12
0.6	12
1.0	12
1.1	8
1.1	4
0.5	9
0.6	8
1.0	8