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Built 2026-10-14 (14 October 2026)

Heat wave in China and 3 other countries, 10 to 23 April 2023

Heat wave in China and 3 other countries, 10 to 23 April 2023: 163 records at 80 stations, peak on 18 April 2023. Closed.

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

Key Facts

  • Heat wave in China and 3 other countries, 10 to 23 April 2023 set or tied 163 station records at 80 stations.
  • It ran from 10 April 2023 to 23 April 2023 (14 days) and its peak day was 18 April 2023.
  • Status: closed.
  • Huili set a daily record high minimum temperature of 17.8 C (64.0 F) on 10 April 2023.
  • The busiest day was 18 April 2023 with 39 records.
  • The oldest broken record in the ranked list had stood for 70 years.

Footprint

10 to 23 April 2023
Footprint of Heat wave in China and 3 other countries, 10 to 23 April 2023 The area covered by Heat wave in China and 3 other countries, 10 to 23 April 2023 is outlined, with 18 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in China and 3 other countries, 10 to 23 April 2023 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 3 other countries, 10 to 23 April 2023: stations that set records in the event
StationTypeValueDate
HuiliRecord high minimum temperature17.8 C (64.0 F)2023-04-10
YibinRecord high maximum temperature35.1 C (95.2 F)2023-04-17
LijingRecord high maximum temperature28.0 C (82.4 F)2023-04-18
YanchiRecord high maximum temperature29.6 C (85.3 F)2023-04-16
NanchengRecord high maximum temperature34.5 C (94.1 F)2023-04-17
TengchongRecord high maximum temperature29.1 C (84.4 F)2023-04-15
LincangRecord high maximum temperature31.5 C (88.7 F)2023-04-15
ChangdeRecord high maximum temperature34.2 C (93.6 F)2023-04-16
ChongqingRecord high maximum temperature35.8 C (96.4 F)2023-04-17
LancangRecord high maximum temperature34.8 C (94.6 F)2023-04-16
NanchongRecord high maximum temperature33.9 C (93.0 F)2023-04-17
YouyangRecord high maximum temperature31.5 C (88.7 F)2023-04-17
GuilinRecord high maximum temperature32.3 C (90.1 F)2023-04-17
NanjingRecord high maximum temperature34.0 C (93.2 F)2023-04-17
DeqenRecord high maximum temperature19.8 C (67.6 F)2023-04-15
Bayan ModRecord high maximum temperature27.7 C (81.9 F)2023-04-16
YinchuanRecord high maximum temperature31.3 C (88.3 F)2023-04-16
WuduRecord high maximum temperature32.5 C (90.5 F)2023-04-16

Records per Day

Peak day 39
Records per day during Heat wave in China and 3 other countries, 10 to 23 April 2023 Records set or tied each day from 10 April 2023 to 23 April 2023. The most in one day was 39 on 18 April 2023. 0 10 20 30 40 04-1004-1204-1404-1604-1804-2004-22
Records set or tied each day from 10 April 2023 to 23 April 2023. The most in one day was 39 on 18 April 2023.
Records per day during Heat wave in China and 3 other countries, 10 to 23 April 2023
DateRecords
2023-04-102
2023-04-113
2023-04-123
2023-04-135
2023-04-142
2023-04-1511
2023-04-1632
2023-04-1732
2023-04-1839
2023-04-1916
2023-04-206
2023-04-215
2023-04-224
2023-04-233

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in China and 3 other countries, 10 to 23 April 2023 ranked by margin
Huili, 04-134.8 C (8.6 F)
Huili, 04-104.1 C (7.4 F)
Yinchuan, 04-163.3 C (5.9 F)
Lijing, 04-183.0 C (5.4 F)
Huili, 04-113.0 C (5.4 F)
Nanjing, 04-172.9 C (5.2 F)
Yanchi, 04-162.8 C (5.0 F)
Chongqing, 04-172.3 C (4.1 F)
Changde, 04-162.1 C (3.8 F)
Nancheng, 04-171.9 C (3.4 F)
Bayan Mod, 04-161.8 C (3.2 F)
Guilin, 04-171.4 C (2.5 F)
Tengchong, 04-151.2 C (2.2 F)
Lincang, 04-150.9 C (1.6 F)
Youyang, 04-170.9 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

Margin against age of the broken record in Heat wave in China and 3 other countries, 10 to 23 April 2023 163 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 20 40 60 80 0.01.32.53.85.0 Margin (C) Years the old record stood
163 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 3 other countries, 10 to 23 April 2023
Margin (C)Years the old record stood
4.164
0.168
3.068
4.830
2.864
1.970
1.264
0.966
2.364
2.166
3.037
0.766
0.770
0.970
1.466
2.958
1.864
3.350
0.370
0.869
0.569
0.568
0.966
0.966
0.666
2.558
3.250
0.766
0.466
1.160
0.269
0.862
1.157
1.658
1.160
1.660
0.566
0.768
0.166
0.264
0.164
3.718
0.758
0.564
1.058
0.758
2.744
2.644
0.857
0.957
0.162
0.160
1.650
0.658
1.550
1.850
0.657
0.356
0.258
0.158
0.158
1.618
1.050
1.318
0.650
0.557
0.950
1.050
1.445
0.250
0.450
0.544
0.545
2.825
3.424
0.442
0.311
1.728
2.824
0.60
0.242
0.442
2.224
2.620
2.524
0.533
0.138
0.237
2.117
0.924
2.024
2.014
2.816
1.524
1.322
1.221
0.928
3.017
0.928
1.224
0.625
0.226
0.424
0.924
1.420
0.228
0.424
2.013
1.418
0.818
1.118
1.82
0.420
0.420
0.520
0.424
2.40
0.224
0.918
0.120
0.713
0.518
0.814
0.518
0.121
1.116
0.714
0.816
0.714
0.816
0.413
1.224
1.920
0.614
1.98
1.113
0.614
1.08
0.314
0.312
1.39
0.824
0.58
0.513
1.74
0.48
0.818
0.78
2.12
1.08
0.99
0.28
0.44
1.52
0.18
0.38
0.24
0.42
0.218
0.14
0.116
0.12
0.12

Compared With Other Events

Station records per event
Station records in Heat wave in China and 3 other countries, 10 to 23 April 2023 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 China and 3 other countries, 10 to 23 April 2023 (this event)163 records

Every Record Set

20 of 163
Every record set or tied during Heat wave in China and 3 other countries, 10 to 23 April 2023, in date order
DateStationRecordValueMarginYears stoodSignificance
2023-04-10HuiliRecord high minimum temperature17.8 C (64.0 F)4.1 C (7.4 F)6442 of 100 (Notable)
2023-04-11HuiliRecord high minimum temperature17.2 C (63.0 F)3.0 C (5.4 F)3729 of 100 (Routine)
2023-04-13HuiliRecord high minimum temperature17.5 C (63.5 F)4.8 C (8.6 F)3034 of 100 (Routine)
2023-04-15TengchongRecord high maximum temperature29.1 C (84.4 F)1.2 C (2.2 F)6430 of 100 (Routine)
2023-04-15LincangRecord high maximum temperature31.5 C (88.7 F)0.9 C (1.6 F)6630 of 100 (Routine)
2023-04-15DeqenRecord high maximum temperature19.8 C (67.6 F)0.8 C (1.4 F)6928 of 100 (Routine)
2023-04-16YanchiRecord high maximum temperature29.6 C (85.3 F)2.8 C (5.0 F)6431 of 100 (Routine)
2023-04-16ChangdeRecord high maximum temperature34.2 C (93.6 F)2.1 C (3.8 F)6630 of 100 (Routine)
2023-04-16LancangRecord high maximum temperature34.8 C (94.6 F)0.7 C (1.3 F)6629 of 100 (Routine)
2023-04-16Bayan ModRecord high maximum temperature27.7 C (81.9 F)1.8 C (3.2 F)6428 of 100 (Routine)
2023-04-16YinchuanRecord high maximum temperature31.3 C (88.3 F)3.3 C (5.9 F)5028 of 100 (Routine)
2023-04-16WuduRecord high maximum temperature32.5 C (90.5 F)0.3 C (0.5 F)7028 of 100 (Routine)
2023-04-17YibinRecord high maximum temperature35.1 C (95.2 F)0.1 C (0.2 F)6837 of 100 (Notable)
2023-04-17NanchengRecord high maximum temperature34.5 C (94.1 F)1.9 C (3.4 F)7031 of 100 (Routine)
2023-04-17ChongqingRecord high maximum temperature35.8 C (96.4 F)2.3 C (4.1 F)6430 of 100 (Routine)
2023-04-17NanchongRecord high maximum temperature33.9 C (93.0 F)0.7 C (1.3 F)7029 of 100 (Routine)
2023-04-17YouyangRecord high maximum temperature31.5 C (88.7 F)0.9 C (1.6 F)7029 of 100 (Routine)
2023-04-17GuilinRecord high maximum temperature32.3 C (90.1 F)1.4 C (2.5 F)6629 of 100 (Routine)
2023-04-17NanjingRecord high maximum temperature34.0 C (93.2 F)2.9 C (5.2 F)5829 of 100 (Routine)
2023-04-18LijingRecord high maximum temperature28.0 C (82.4 F)3.0 C (5.4 F)6836 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 163 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.