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Heat wave in China and 3 other countries, 5 to 15 September 2021

Heat wave in China and 3 other countries, 5 to 15 September 2021: 139 records at 72 stations, peak on 11 September 2021. Closed.

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

Key Facts

  • Heat wave in China and 3 other countries, 5 to 15 September 2021 set or tied 139 station records at 72 stations.
  • It ran from 5 September 2021 to 15 September 2021 (11 days) and its peak day was 11 September 2021.
  • Status: closed.
  • Irtyshsk set a daily record high maximum temperature of 34.4 C (93.9 F) on 5 September 2021.
  • The busiest day was 11 September 2021 with 34 records.
  • The oldest broken record in the ranked list had stood for 78 years.

Footprint

5 to 15 September 2021
Footprint of Heat wave in China and 3 other countries, 5 to 15 September 2021 The area covered by Heat wave in China and 3 other countries, 5 to 15 September 2021 is outlined, with 16 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in China and 3 other countries, 5 to 15 September 2021 is outlined, with 16 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, 5 to 15 September 2021: stations that set records in the event
StationTypeValueDate
IrtyshskRecord high maximum temperature34.4 C (93.9 F)2021-09-05
Uch-AralRecord high maximum temperature37.4 C (99.3 F)2021-09-08
JinanRecord high maximum temperature34.0 C (93.2 F)2021-09-12
HamiRecord high maximum temperature37.0 C (98.6 F)2021-09-10
TurpanRecord high maximum temperature40.4 C (104.7 F)2021-09-10
KokpektyRecord high maximum temperature34.1 C (93.4 F)2021-09-08
DunhuangRecord high maximum temperature34.4 C (93.9 F)2021-09-10
HohhotRecord high maximum temperature29.8 C (85.6 F)2021-09-12
YajljuRecord high maximum temperature26.8 C (80.2 F)2021-09-06
JiuquanRecord high maximum temperature30.3 C (86.5 F)2021-09-10
XinyangRecord high maximum temperature35.0 C (95.0 F)2021-09-11
ZhumadianRecord high maximum temperature35.0 C (95.0 F)2021-09-12
RuoqiangRecord high maximum temperature36.7 C (98.1 F)2021-09-09
TikanlikRecord high maximum temperature36.9 C (98.4 F)2021-09-10
TaiyuanRecord high maximum temperature32.5 C (90.5 F)2021-09-10
XuzhouRecord high maximum temperature31.8 C (89.2 F)2021-09-15

Records per Day

Peak day 34
Records per day during Heat wave in China and 3 other countries, 5 to 15 September 2021 Records set or tied each day from 5 September 2021 to 15 September 2021. The most in one day was 34 on 11 September 2021. 0 10 20 30 40 09-0509-0709-0909-1109-1309-15
Records set or tied each day from 5 September 2021 to 15 September 2021. The most in one day was 34 on 11 September 2021.
Records per day during Heat wave in China and 3 other countries, 5 to 15 September 2021
DateRecords
2021-09-054
2021-09-0611
2021-09-078
2021-09-087
2021-09-098
2021-09-1013
2021-09-1134
2021-09-1231
2021-09-1316
2021-09-145
2021-09-152

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in China and 3 other countries, 5 to 15 September 2021 ranked by margin
Hohhot, 09-123.0 C (5.4 F)
Jinan, 09-122.2 C (4.0 F)
Hami, 09-102.2 C (4.0 F)
Irtyshsk, 09-052.1 C (3.8 F)
Uch-Aral, 09-081.8 C (3.2 F)
Zhumadian, 09-121.8 C (3.2 F)
Taiyuan, 09-141.8 C (3.2 F)
Dunhuang, 09-101.4 C (2.5 F)
Jiuquan, 09-101.0 C (1.8 F)
Turpan, 09-100.9 C (1.6 F)
Xinyang, 09-110.9 C (1.6 F)
Xinyang, 09-120.9 C (1.6 F)
Ruoqiang, 09-090.9 C (1.6 F)
Kokpekty, 09-080.8 C (1.4 F)
Tikanlik, 09-100.7 C (1.3 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, 5 to 15 September 2021 139 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
139 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, 5 to 15 September 2021
Margin (C)Years the old record stood
2.178
2.268
1.874
0.970
2.262
1.463
3.050
0.862
0.568
1.063
1.856
0.962
0.962
0.362
0.762
0.963
0.662
0.760
1.852
0.763
1.063
0.362
3.732
0.758
0.558
1.152
0.662
2.952
2.240
0.158
0.163
1.840
0.258
1.640
0.356
0.748
1.640
4.420
1.640
0.352
1.540
0.840
1.440
0.240
0.640
4.012
1.432
0.448
2.722
2.723
2.518
2.916
1.823
0.138
1.039
2.118
1.324
1.523
1.423
3.211
1.918
1.918
1.024
1.923
1.423
1.323
1.623
1.622
1.823
2.616
1.423
2.411
0.823
1.423
0.922
0.132
2.416
1.118
0.720
1.223
1.123
1.316
0.523
1.414
0.423
1.716
0.623
1.119
1.418
1.118
0.418
0.723
0.423
0.623
0.223
1.016
0.323
0.418
0.916
0.523
2.94
1.118
1.018
1.811
1.016
0.511
0.718
0.423
1.311
0.518
0.123
0.118
0.618
0.518
1.216
1.216
1.316
0.323
1.54
0.120
2.111
0.318
0.218
0.318
0.318
1.28
0.618
0.318
1.811
0.314
0.611
1.42
0.316
0.116
0.211
0.611
0.116
0.24
0.54

Compared With Other Events

Station records per event
Station records in Heat wave in China and 3 other countries, 5 to 15 September 2021 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, 5 to 15 September 2021 (this event)139 records

Every Record Set

20 of 139
Every record set or tied during Heat wave in China and 3 other countries, 5 to 15 September 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-09-05IrtyshskRecord high maximum temperature34.4 C (93.9 F)2.1 C (3.8 F)7834 of 100 (Routine)
2021-09-06YajljuRecord high maximum temperature26.8 C (80.2 F)0.3 C (0.5 F)6227 of 100 (Routine)
2021-09-08Uch-AralRecord high maximum temperature37.4 C (99.3 F)1.8 C (3.2 F)7433 of 100 (Routine)
2021-09-08KokpektyRecord high maximum temperature34.1 C (93.4 F)0.8 C (1.4 F)6229 of 100 (Routine)
2021-09-09RuoqiangRecord high maximum temperature36.7 C (98.1 F)0.9 C (1.6 F)6326 of 100 (Routine)
2021-09-09HamiRecord high maximum temperature35.3 C (95.5 F)0.6 C (1.1 F)6226 of 100 (Routine)
2021-09-10TurpanRecord high maximum temperature40.4 C (104.7 F)0.9 C (1.6 F)7030 of 100 (Routine)
2021-09-10HamiRecord high maximum temperature37.0 C (98.6 F)2.2 C (4.0 F)6230 of 100 (Routine)
2021-09-10DunhuangRecord high maximum temperature34.4 C (93.9 F)1.4 C (2.5 F)6329 of 100 (Routine)
2021-09-10JiuquanRecord high maximum temperature30.3 C (86.5 F)1.0 C (1.8 F)6327 of 100 (Routine)
2021-09-10TikanlikRecord high maximum temperature36.9 C (98.4 F)0.7 C (1.3 F)6226 of 100 (Routine)
2021-09-10TaiyuanRecord high maximum temperature32.5 C (90.5 F)0.7 C (1.3 F)6026 of 100 (Routine)
2021-09-11XinyangRecord high maximum temperature35.0 C (95.0 F)0.9 C (1.6 F)6227 of 100 (Routine)
2021-09-12JinanRecord high maximum temperature34.0 C (93.2 F)2.2 C (4.0 F)6833 of 100 (Routine)
2021-09-12HohhotRecord high maximum temperature29.8 C (85.6 F)3.0 C (5.4 F)5029 of 100 (Routine)
2021-09-12ZhumadianRecord high maximum temperature35.0 C (95.0 F)1.8 C (3.2 F)5627 of 100 (Routine)
2021-09-12XinyangRecord high maximum temperature34.1 C (93.4 F)0.9 C (1.6 F)6227 of 100 (Routine)
2021-09-13JinanRecord high maximum temperature33.5 C (92.3 F)0.5 C (0.9 F)6828 of 100 (Routine)
2021-09-14TaiyuanRecord high maximum temperature31.2 C (88.2 F)1.8 C (3.2 F)5226 of 100 (Routine)
2021-09-15XuzhouRecord high maximum temperature31.8 C (89.2 F)0.7 C (1.3 F)6326 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 139 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.