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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Heat wave in Japan and 11 other countries, 6 to 17 March 2018

Heat wave in Japan and 11 other countries, 6 to 17 March 2018: 468 records at 245 stations, peak on 14 March 2018. Closed.

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

Key Facts

  • Heat wave in Japan and 11 other countries, 6 to 17 March 2018 set or tied 468 station records at 245 stations.
  • It ran from 6 March 2018 to 17 March 2018 (12 days) and its peak day was 14 March 2018.
  • Status: closed.
  • Morioka set a daily record high maximum temperature of 19.6 C (67.3 F) on 15 March 2018.
  • The busiest day was 14 March 2018 with 113 records.
  • The oldest broken record in the ranked list had stood for 122 years.

Footprint

6 to 17 March 2018
Footprint of Heat wave in Japan and 11 other countries, 6 to 17 March 2018 The area covered by Heat wave in Japan and 11 other countries, 6 to 17 March 2018 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Japan and 11 other countries, 6 to 17 March 2018 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 11 other countries, 6 to 17 March 2018: stations that set records in the event
StationTypeValueDate
KokpektyRecord high maximum temperature10.3 C (50.5 F)2018-03-07
MoriokaRecord high maximum temperature19.6 C (67.3 F)2018-03-15
AlmatyRecord high minimum temperature9.0 C (48.2 F)2018-03-10
TashkentRecord high maximum temperature27.4 C (81.3 F)2018-03-10
YuanpingRecord high maximum temperature27.7 C (81.9 F)2018-03-14
GangneungRecord high minimum temperature14.6 C (58.3 F)2018-03-14
OshimaRecord high minimum temperature14.5 C (58.1 F)2018-03-15
UrakawaRecord high maximum temperature12.9 C (55.2 F)2018-03-15
OkayamaRecord high maximum temperature23.2 C (73.8 F)2018-03-14
TsurugaRecord high maximum temperature22.2 C (72.0 F)2018-03-15
ZharkentRecord high maximum temperature22.1 C (71.8 F)2018-03-11
NagoyaRecord high maximum temperature22.6 C (72.7 F)2018-03-15
UenoRecord high maximum temperature23.6 C (74.5 F)2018-03-15
KhudjandRecord high minimum temperature11.4 C (52.5 F)2018-03-11
HuiminRecord high maximum temperature28.2 C (82.8 F)2018-03-14
FushikiRecord high maximum temperature23.8 C (74.8 F)2018-03-15
ToyamaRecord high maximum temperature24.1 C (75.4 F)2018-03-15
ShimonosekiRecord high maximum temperature21.4 C (70.5 F)2018-03-14
OfunatoRecord high maximum temperature21.7 C (71.1 F)2018-03-15
AjiroRecord high minimum temperature13.3 C (55.9 F)2018-03-15

Records per Day

Peak day 113
Records per day during Heat wave in Japan and 11 other countries, 6 to 17 March 2018 Records set or tied each day from 6 March 2018 to 17 March 2018. The most in one day was 113 on 14 March 2018. 0 30 60 90 120 03-0603-0803-1003-1203-1403-16
Records set or tied each day from 6 March 2018 to 17 March 2018. The most in one day was 113 on 14 March 2018.
Records per day during Heat wave in Japan and 11 other countries, 6 to 17 March 2018
DateRecords
2018-03-061
2018-03-072
2018-03-082
2018-03-0919
2018-03-1034
2018-03-1162
2018-03-1265
2018-03-1371
2018-03-14113
2018-03-1593
2018-03-164
2018-03-172

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Japan and 11 other countries, 6 to 17 March 2018 ranked by margin
Yuanping, 03-149.5 C (17.1 F)
Gangneung, 03-148.6 C (15.5 F)
Morioka, 03-157.3 C (13.1 F)
Ofunato, 03-156.0 C (10.8 F)
Kokpekty, 03-075.8 C (10.4 F)
Huimin, 03-144.6 C (8.3 F)
Toyama, 03-154.6 C (8.3 F)
Tsuruga, 03-154.4 C (7.9 F)
Fushiki, 03-154.2 C (7.6 F)
Urakawa, 03-154.0 C (7.2 F)
Okayama, 03-144.0 C (7.2 F)
Oshima, 03-153.9 C (7.0 F)
Ueno, 03-153.8 C (6.8 F)
Shimonoseki, 03-143.7 C (6.7 F)
Nagoya, 03-153.4 C (6.1 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

Margin against age of the broken record in Heat wave in Japan and 11 other countries, 6 to 17 March 2018 468 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 38 75 113 150 0.03.87.511.315.0 Margin (C) Years the old record stood
468 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 11 other countries, 6 to 17 March 2018
Margin (C)Years the old record stood
7.365
5.883
3.292
9.561
1.1122
3.967
8.640
4.056
4.461
4.060
3.465
3.865
1.277
4.665
4.261
4.661
1.573
6.041
1.967
3.752
3.756
1.371
5.048
5.056
4.761
5.641
2.860
2.961
2.560
5.341
4.440
2.260
0.968
9.935
3.353
4.156
4.156
5.341
1.560
2.361
2.261
2.561
3.056
1.760
5.025
7.219
2.235
2.168
2.665
0.767
1.861
1.861
2.356
3.051
6.616
13.220
2.148
1.265
1.165
2.552
3.441
1.160
1.260
1.461
1.661
2.056
1.061
4.056
3.555
4.651
2.756
5.825
1.160
1.061
2.056
1.756
1.060
6.536
7.732
2.155
1.556
0.461
2.741
0.760
0.760
1.056
0.165
0.561
1.852
0.761
0.461
2.156
1.856
5.335
1.752
1.351
0.460
4.225
2.540
0.360
0.956
0.160
0.161
9.324
10.020
9.823
7.324
0.748
0.956
4.832
0.456
0.456
0.752
1.052
2.640
0.756
0.751
0.656
3.936
7.113
6.913
0.752
3.329
1.549
1.841
0.652
0.652
0.552
0.414
7.824
0.252
0.945
0.352
0.849
0.152
4.98
1.040
0.452
1.640
2.432
1.740
3.925
5.324
5.120
7.216
4.724
5.924
3.235
1.936
5.316
3.132
2.825
2.619
0.741
4.716
4.319
1.720
3.635
4.624
4.824
7.116
2.735
5.424
2.536
2.636
0.931
5.924
4.616
1.736
1.736
1.436
2.819
1.140
2.716
1.028
6.624
1.144
0.248
0.712
5.216
1.036
4.08
2.129
4.18
1.932
3.019
1.329
0.836
0.936
2.816
6.77
3.924
5.524
0.340
4.116
3.324
0.143
0.136
2.624
3.616

Compared With Other Events

Station records per event
Station records in Heat wave in Japan and 11 other countries, 6 to 17 March 2018 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 11 other countries, 6 to 17 March 2018 (this event)468 records

Every Record Set

20 of 468
Every record set or tied during Heat wave in Japan and 11 other countries, 6 to 17 March 2018, in date order
DateStationRecordValueMarginYears stoodSignificance
2018-03-07KokpektyRecord high maximum temperature10.3 C (50.5 F)5.8 C (10.4 F)8343 of 100 (Notable)
2018-03-10AlmatyRecord high minimum temperature9.0 C (48.2 F)3.2 C (5.8 F)9242 of 100 (Notable)
2018-03-10TashkentRecord high maximum temperature27.4 C (81.3 F)1.1 C (2.0 F)12241 of 100 (Notable)
2018-03-11ZharkentRecord high maximum temperature22.1 C (71.8 F)1.2 C (2.2 F)7734 of 100 (Routine)
2018-03-11KhudjandRecord high minimum temperature11.4 C (52.5 F)1.5 C (2.7 F)7333 of 100 (Routine)
2018-03-14YuanpingRecord high maximum temperature27.7 C (81.9 F)9.5 C (17.1 F)6141 of 100 (Notable)
2018-03-14GangneungRecord high minimum temperature14.6 C (58.3 F)8.6 C (15.5 F)4039 of 100 (Notable)
2018-03-14OkayamaRecord high maximum temperature23.2 C (73.8 F)4.0 C (7.2 F)6035 of 100 (Notable)
2018-03-14HuiminRecord high maximum temperature28.2 C (82.8 F)4.6 C (8.3 F)6533 of 100 (Routine)
2018-03-14ShimonosekiRecord high maximum temperature21.4 C (70.5 F)3.7 C (6.7 F)5232 of 100 (Routine)
2018-03-15MoriokaRecord high maximum temperature19.6 C (67.3 F)7.3 C (13.1 F)6543 of 100 (Notable)
2018-03-15OshimaRecord high minimum temperature14.5 C (58.1 F)3.9 C (7.0 F)6739 of 100 (Notable)
2018-03-15UrakawaRecord high maximum temperature12.9 C (55.2 F)4.0 C (7.2 F)5636 of 100 (Notable)
2018-03-15TsurugaRecord high maximum temperature22.2 C (72.0 F)4.4 C (7.9 F)6135 of 100 (Notable)
2018-03-15NagoyaRecord high maximum temperature22.6 C (72.7 F)3.4 C (6.1 F)6534 of 100 (Routine)
2018-03-15UenoRecord high maximum temperature23.6 C (74.5 F)3.8 C (6.8 F)6534 of 100 (Routine)
2018-03-15FushikiRecord high maximum temperature23.8 C (74.8 F)4.2 C (7.6 F)6133 of 100 (Routine)
2018-03-15ToyamaRecord high maximum temperature24.1 C (75.4 F)4.6 C (8.3 F)6133 of 100 (Routine)
2018-03-15OfunatoRecord high maximum temperature21.7 C (71.1 F)6.0 C (10.8 F)4132 of 100 (Routine)
2018-03-15AjiroRecord high minimum temperature13.3 C (55.9 F)1.9 C (3.4 F)6732 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 468 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.