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Built 2026-10-19 (19 October 2026)

Heat wave in United States and Russia, 17 July to 12 August 2023

Heat wave in United States and Russia, 17 July to 12 August 2023: 245 records at 60 stations, peak on 24 July 2023. Closed.

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

Key Facts

  • Heat wave in United States and Russia, 17 July to 12 August 2023 set or tied 245 station records at 60 stations.
  • It ran from 17 July 2023 to 12 August 2023 (27 days) and its peak day was 24 July 2023.
  • Status: closed.
  • Wainwright AP set an all-time record high maximum temperature of 28.9 C (84.0 F) on 24 July 2023.
  • The busiest day was 24 July 2023 with 37 records.
  • The oldest broken record in the ranked list had stood for 118 years.

Footprint

17 July to 12 August 2023
Footprint of Heat wave in United States and Russia, 17 July to 12 August 2023 The area covered by Heat wave in United States and Russia, 17 July to 12 August 2023 is outlined, with 10 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United States and Russia, 17 July to 12 August 2023 is outlined, with 10 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in United States and Russia, 17 July to 12 August 2023: stations that set records in the event
StationTypeValueDate
Wainwright APRecord high maximum temperature28.9 C (84.0 F)2023-07-24
Barrow APRecord high minimum temperature13.3 C (55.9 F)2023-08-05
University Exp STNRecord high minimum temperature16.7 C (62.1 F)2023-07-26
WisemanRecord high maximum temperature26.7 C (80.1 F)2023-08-08
SkagwayRecord high maximum temperature27.2 C (81.0 F)2023-08-07
Yakutat APRecord high minimum temperature13.9 C (57.0 F)2023-07-31
Haines APRecord high maximum temperature26.1 C (79.0 F)2023-08-06
Fairbanks Intl APRecord high minimum temperature17.8 C (64.0 F)2023-07-27
McKinley ParkRecord high maximum temperature28.9 C (84.0 F)2023-07-24
Cordova APRecord high minimum temperature12.8 C (55.0 F)2023-07-24

Records per Day

Peak day 37
Records per day during Heat wave in United States and Russia, 17 July to 12 August 2023 Records set or tied each day from 17 July 2023 to 12 August 2023. The most in one day was 37 on 24 July 2023. 0 10 20 30 40 07-1707-2007-2307-2607-2908-0108-0408-0708-10
Records set or tied each day from 17 July 2023 to 12 August 2023. The most in one day was 37 on 24 July 2023.
Records per day during Heat wave in United States and Russia, 17 July to 12 August 2023
DateRecords
2023-07-171
2023-07-185
2023-07-1912
2023-07-204
2023-07-218
2023-07-229
2023-07-2313
2023-07-2437
2023-07-2516
2023-07-2623
2023-07-2720
2023-07-2816
2023-07-295
2023-07-3010
2023-07-319
2023-08-017
2023-08-022
2023-08-032
2023-08-044
2023-08-056
2023-08-0610
2023-08-0713
2023-08-084
2023-08-095
2023-08-102
2023-08-111
2023-08-121

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States and Russia, 17 July to 12 August 2023 ranked by margin
Barrow AP, 07-193.9 C (7.0 F)
Wiseman, 08-083.4 C (6.1 F)
Wainwright AP, 07-243.4 C (6.1 F)
Wiseman, 08-093.3 C (5.9 F)
Wiseman, 07-252.8 C (5.0 F)
Wainwright AP, 08-072.8 C (5.0 F)
Wainwright AP, 07-242.2 C (4.0 F)
Fairbanks Intl AP, 07-272.2 C (4.0 F)
University Exp STN, 07-261.7 C (3.1 F)
Barrow AP, 07-211.7 C (3.1 F)
Wiseman, 07-241.7 C (3.1 F)
Barrow AP, 08-051.6 C (2.9 F)
Wiseman, 07-201.1 C (2.0 F)
Haines AP, 08-061.1 C (2.0 F)
University Exp STN, 07-250.6 C (1.1 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 United States and Russia, 17 July to 12 August 2023 245 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 30 60 90 120 0.01.32.53.85.0 Margin (C) Years the old record stood
245 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 United States and Russia, 17 July to 12 August 2023
Margin (C)Years the old record stood
2.268
1.643
1.7108
3.486
3.384
0.5118
0.668
2.876
1.780
2.886
0.692
3.472
1.185
1.184
3.969
2.269
0.680
0.680
0.677
1.772
1.672
1.772
1.168
0.676
0.670
1.768
1.169
2.254
1.162
0.224
0.676
1.265
1.169
1.169
2.254
0.665
3.441
1.154
2.333
1.156
0.554
1.648
0.644
1.254
2.244
1.252
1.133
0.652
0.654
1.146
0.629
5.018
1.152
1.124
3.98
0.538
1.229
2.89
3.313
1.129
0.638
1.721
0.544
0.638
2.224
1.733
2.725
2.317
1.221
0.632
3.99
1.730
1.124
2.329
1.712
2.89
3.316
1.837
0.620
0.918
2.84
0.626
0.521
1.117
0.625
2.84
1.710
0.524
1.128
0.617
1.228
1.74
1.74
0.617
0.618
1.16
0.620
1.728
2.217
1.228
2.410
1.10
2.34
1.113
1.116
0.516
0.628
1.117
0.629
1.725
1.128
1.628
0.729
1.14
1.19
0.612
2.26
0.624
0.528
1.128
1.722
1.120
1.124
0.628
1.19
1.125
0.530
2.716
2.817
0.528
0.920
2.317
0.628
0.629
1.718
0.532
0.628
1.028
0.428
0.232
2.116
0.428
1.616
2.316
1.620
1.813
1.65
0.64
0.54
1.19
0.516
1.24
1.74
1.69
0.625
0.54
2.216
0.628
1.124
1.618
0.529
1.620
0.529
0.629
0.425
0.228
0.64
0.64
1.15
1.113
0.620
1.112
0.624
1.713
0.624
1.616
1.616
1.612
0.64
0.64
1.69
0.54
1.716
1.716
0.620
0.522
1.79
0.620
0.620
1.89
2.84
0.618
0.54
0.58
0.616
0.56
1.116
0.518
0.617
1.09

Compared With Other Events

Station records per event
Station records in Heat wave in United States and Russia, 17 July to 12 August 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 United States and Russia, 17 July to 12 August 2023 (this event)245 records

Every Record Set

20 of 245
Every record set or tied during Heat wave in United States and Russia, 17 July to 12 August 2023, in date order
DateStationRecordValueMarginYears stoodSignificance
2023-07-19Barrow APRecord high maximum temperature23.3 C (73.9 F)3.9 C (7.0 F)6938 of 100 (Notable)
2023-07-20WisemanRecord high minimum temperature13.3 C (55.9 F)1.1 C (2.0 F)8538 of 100 (Notable)
2023-07-21Barrow APRecord high minimum temperature8.9 C (48.0 F)1.7 C (3.1 F)8041 of 100 (Notable)
2023-07-24Wainwright APRecord high maximum temperature28.9 C (84.0 F)2.2 C (4.0 F)6852 of 100 (Notable)
2023-07-24Wainwright APRecord high minimum temperature12.8 C (55.0 F)3.4 C (6.1 F)7239 of 100 (Notable)
2023-07-24McKinley ParkRecord high maximum temperature28.9 C (84.0 F)0.6 C (1.1 F)8035 of 100 (Notable)
2023-07-24Cordova APRecord high minimum temperature12.8 C (55.0 F)0.6 C (1.1 F)7735 of 100 (Notable)
2023-07-24WisemanRecord high maximum temperature28.9 C (84.0 F)1.7 C (3.1 F)7234 of 100 (Routine)
2023-07-25University Exp STNRecord high maximum temperature33.9 C (93.0 F)0.6 C (1.1 F)6841 of 100 (Notable)
2023-07-25WisemanRecord high minimum temperature15.0 C (59.0 F)2.8 C (5.0 F)7641 of 100 (Notable)
2023-07-26University Exp STNRecord high minimum temperature16.7 C (62.1 F)1.7 C (3.1 F)10845 of 100 (Notable)
2023-07-27Fairbanks Intl APRecord high minimum temperature17.8 C (64.0 F)2.2 C (4.0 F)6937 of 100 (Notable)
2023-07-30WisemanRecord high minimum temperature11.7 C (53.1 F)0.6 C (1.1 F)8035 of 100 (Notable)
2023-07-31Yakutat APRecord high minimum temperature13.9 C (57.0 F)0.6 C (1.1 F)9239 of 100 (Notable)
2023-08-05Barrow APRecord high minimum temperature13.3 C (55.9 F)1.6 C (2.9 F)4348 of 100 (Notable)
2023-08-06Haines APRecord high maximum temperature26.1 C (79.0 F)1.1 C (2.0 F)8438 of 100 (Notable)
2023-08-07SkagwayRecord high maximum temperature27.2 C (81.0 F)0.5 C (0.9 F)11841 of 100 (Notable)
2023-08-07Wainwright APRecord high maximum temperature21.1 C (70.0 F)2.8 C (5.0 F)8640 of 100 (Notable)
2023-08-08WisemanRecord high maximum temperature26.7 C (80.1 F)3.4 C (6.1 F)8644 of 100 (Notable)
2023-08-09WisemanRecord high minimum temperature13.9 C (57.0 F)3.3 C (5.9 F)8443 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 245 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.