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Built 2026-10-19 (19 October 2026)

Heat wave in Japan and 5 other countries, 20 to 30 April 2022

Heat wave in Japan and 5 other countries, 20 to 30 April 2022: 219 records at 145 stations, peak on 26 April 2022. Closed.

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

Key Facts

  • Heat wave in Japan and 5 other countries, 20 to 30 April 2022 set or tied 219 station records at 145 stations.
  • It ran from 20 April 2022 to 30 April 2022 (11 days) and its peak day was 26 April 2022.
  • Status: closed.
  • Irako set a monthly record high minimum temperature of 18.9 C (66.0 F) on 26 April 2022.
  • The busiest day was 26 April 2022 with 88 records.
  • The oldest broken record in the ranked list had stood for 69 years.

Footprint

20 to 30 April 2022
Footprint of Heat wave in Japan and 5 other countries, 20 to 30 April 2022 The area covered by Heat wave in Japan and 5 other countries, 20 to 30 April 2022 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Japan and 5 other countries, 20 to 30 April 2022 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Japan and 5 other countries, 20 to 30 April 2022: stations that set records in the event
StationTypeValueDate
IrakoRecord high minimum temperature18.9 C (66.0 F)2022-04-26
WeifangRecord high maximum temperature31.4 C (88.5 F)2022-04-25
SumotoRecord high minimum temperature18.9 C (66.0 F)2022-04-26
HamamatsuRecord high minimum temperature18.6 C (65.5 F)2022-04-26
KatsuuraRecord high maximum temperature22.5 C (72.5 F)2022-04-25
ChoshiRecord high minimum temperature18.0 C (64.4 F)2022-04-26
JiexiuRecord high minimum temperature14.0 C (57.2 F)2022-04-26
NagoyaRecord high minimum temperature19.0 C (66.2 F)2022-04-26
TsuRecord high minimum temperature18.4 C (65.1 F)2022-04-26
OmaezakiRecord high minimum temperature18.3 C (64.9 F)2022-04-26
TakamatsuRecord high minimum temperature16.1 C (61.0 F)2022-04-26
YinchuanRecord high maximum temperature30.1 C (86.2 F)2022-04-26
YamagataRecord high minimum temperature13.0 C (55.4 F)2022-04-26
FushikiRecord high minimum temperature14.8 C (58.6 F)2022-04-26
UtsunomiyaRecord high minimum temperature16.8 C (62.2 F)2022-04-26
TakayamaRecord high minimum temperature13.3 C (55.9 F)2022-04-26
MishimaRecord high minimum temperature17.3 C (63.1 F)2022-04-26
IrozakiRecord high minimum temperature18.7 C (65.7 F)2022-04-26
HikoneRecord high minimum temperature16.9 C (62.4 F)2022-04-26
HeyuanRecord high minimum temperature24.7 C (76.5 F)2022-04-28

Records per Day

Peak day 88
Records per day during Heat wave in Japan and 5 other countries, 20 to 30 April 2022 Records set or tied each day from 20 April 2022 to 30 April 2022. The most in one day was 88 on 26 April 2022. 0 25 50 75 100 04-2004-2104-2204-2304-2404-2504-2604-2704-2804-30
Records set or tied each day from 20 April 2022 to 30 April 2022. The most in one day was 88 on 26 April 2022.
Records per day during Heat wave in Japan and 5 other countries, 20 to 30 April 2022
DateRecords
2022-04-201
2022-04-212
2022-04-224
2022-04-2321
2022-04-2417
2022-04-2557
2022-04-2688
2022-04-2716
2022-04-2812
2022-04-301

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Japan and 5 other countries, 20 to 30 April 2022 ranked by margin
Utsunomiya, 04-263.2 C (5.8 F)
Sumoto, 04-263.0 C (5.4 F)
Weifang, 04-252.6 C (4.7 F)
Jiexiu, 04-262.5 C (4.5 F)
Nagoya, 04-262.4 C (4.3 F)
Tsu, 04-262.4 C (4.3 F)
Hamamatsu, 04-262.3 C (4.1 F)
Omaezaki, 04-262.2 C (4.0 F)
Irozaki, 04-262.0 C (3.6 F)
Fushiki, 04-261.9 C (3.4 F)
Hikone, 04-261.8 C (3.2 F)
Choshi, 04-261.3 C (2.3 F)
Takamatsu, 04-261.2 C (2.2 F)
Takayama, 04-261.2 C (2.2 F)
Katsuura, 04-251.0 C (1.8 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 Japan and 5 other countries, 20 to 30 April 2022 219 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
219 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 Japan and 5 other countries, 20 to 30 April 2022
Margin (C)Years the old record stood
0.164
2.668
3.056
2.357
1.357
1.067
2.559
2.456
2.456
2.256
1.264
1.069
0.764
0.864
1.956
3.248
1.264
0.864
2.048
1.856
2.056
2.256
2.956
0.863
2.348
0.961
1.656
0.564
1.756
0.564
1.656
2.248
3.943
0.861
0.761
0.364
0.365
2.248
0.164
1.948
1.356
2.144
1.256
1.848
1.356
0.661
0.661
0.128
0.260
0.161
0.457
0.557
1.056
0.956
0.956
2.239
3.637
3.740
2.537
1.644
0.656
0.856
0.257
0.257
4.423
2.139
0.223
0.956
0.257
0.261
1.348
2.840
2.340
0.848
1.145
1.739
2.739
0.456
0.356
1.156
1.048
0.256
0.356
0.256
0.156
0.752
1.148
0.848
0.748
1.248
1.339
2.527
1.244
0.844
0.448
1.248
0.648
2.036
2.236
2.436
2.528
0.348
1.047
2.237
1.539
1.440
0.148
0.147
1.139
0.147
1.139
1.239
0.644
0.644
1.136
1.836
0.240
1.148
1.740
1.840
0.940
0.645
1.240
0.440
0.244
0.647
0.747
0.939
0.636
0.639
0.539
0.248
1.724
0.539
0.645
0.639
0.739
1.836
0.739
0.739
3.023
0.644
0.337
0.239
0.239
0.139
0.735
0.539
0.435
1.031
0.439
0.535
2.028
1.328
2.129
1.625
0.727
0.328
0.928
0.836
1.039
3.19
2.125
4.67
1.228
0.629
1.917
0.924
1.028
0.924
0.228
3.87
0.720
1.417
0.924
1.211
2.35
0.223
0.617
1.111
2.316
0.811
0.320
0.119
0.319
0.419
1.44
1.011
1.77
0.511
1.95
0.123
0.511
0.57
0.111
0.311
0.311
0.68
0.117
0.48

Compared With Other Events

Station records per event
Station records in Heat wave in Japan and 5 other countries, 20 to 30 April 2022 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 Japan and 5 other countries, 20 to 30 April 2022 (this event)219 records

Every Record Set

20 of 219
Every record set or tied during Heat wave in Japan and 5 other countries, 20 to 30 April 2022, in date order
DateStationRecordValueMarginYears stoodSignificance
2022-04-25WeifangRecord high maximum temperature31.4 C (88.5 F)2.6 C (4.7 F)6832 of 100 (Routine)
2022-04-25KatsuuraRecord high maximum temperature22.5 C (72.5 F)1.0 C (1.8 F)6730 of 100 (Routine)
2022-04-26IrakoRecord high minimum temperature18.9 C (66.0 F)0.1 C (0.2 F)6436 of 100 (Notable)
2022-04-26SumotoRecord high minimum temperature18.9 C (66.0 F)3.0 C (5.4 F)5632 of 100 (Routine)
2022-04-26HamamatsuRecord high minimum temperature18.6 C (65.5 F)2.3 C (4.1 F)5731 of 100 (Routine)
2022-04-26ChoshiRecord high minimum temperature18.0 C (64.4 F)1.3 C (2.3 F)5730 of 100 (Routine)
2022-04-26JiexiuRecord high minimum temperature14.0 C (57.2 F)2.5 C (4.5 F)5929 of 100 (Routine)
2022-04-26NagoyaRecord high minimum temperature19.0 C (66.2 F)2.4 C (4.3 F)5629 of 100 (Routine)
2022-04-26TsuRecord high minimum temperature18.4 C (65.1 F)2.4 C (4.3 F)5629 of 100 (Routine)
2022-04-26OmaezakiRecord high minimum temperature18.3 C (64.9 F)2.2 C (4.0 F)5629 of 100 (Routine)
2022-04-26TakamatsuRecord high minimum temperature16.1 C (61.0 F)1.2 C (2.2 F)6429 of 100 (Routine)
2022-04-26YinchuanRecord high maximum temperature30.1 C (86.2 F)1.0 C (1.8 F)6928 of 100 (Routine)
2022-04-26YamagataRecord high minimum temperature13.0 C (55.4 F)0.8 C (1.4 F)6428 of 100 (Routine)
2022-04-26FushikiRecord high minimum temperature14.8 C (58.6 F)1.9 C (3.4 F)5628 of 100 (Routine)
2022-04-26UtsunomiyaRecord high minimum temperature16.8 C (62.2 F)3.2 C (5.8 F)4828 of 100 (Routine)
2022-04-26TakayamaRecord high minimum temperature13.3 C (55.9 F)1.2 C (2.2 F)6428 of 100 (Routine)
2022-04-26MishimaRecord high minimum temperature17.3 C (63.1 F)0.8 C (1.4 F)6428 of 100 (Routine)
2022-04-26IrozakiRecord high minimum temperature18.7 C (65.7 F)2.0 C (3.6 F)4828 of 100 (Routine)
2022-04-26HikoneRecord high minimum temperature16.9 C (62.4 F)1.8 C (3.2 F)5628 of 100 (Routine)
2022-04-28HeyuanRecord high minimum temperature24.7 C (76.5 F)0.7 C (1.3 F)6428 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 219 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.