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Data as of 2026-10-12
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Built 2026-10-14 (14 October 2026)

Heat wave in United States, 26 February to 8 March 2025

Heat wave in United States, 26 February to 8 March 2025: 208 records at 71 stations, peak on 3 March 2025. Closed.

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

Key Facts

  • Heat wave in United States, 26 February to 8 March 2025 set or tied 208 station records at 71 stations.
  • It ran from 26 February 2025 to 8 March 2025 (11 days) and its peak day was 3 March 2025.
  • Status: closed.
  • Wiseman set a daily record high maximum temperature of 3.3 C (37.9 F) on 6 March 2025.
  • The busiest day was 3 March 2025 with 49 records.
  • The oldest broken record in the ranked list had stood for 104 years.

Footprint

26 February to 8 March 2025
Footprint of Heat wave in United States, 26 February to 8 March 2025 The area covered by Heat wave in United States, 26 February to 8 March 2025 is outlined, with 15 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United States, 26 February to 8 March 2025 is outlined, with 15 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in United States, 26 February to 8 March 2025: stations that set records in the event
StationTypeValueDate
WisemanRecord high maximum temperature3.3 C (37.9 F)2025-03-06
Matanuska Exp FarmRecord high minimum temperature4.4 C (39.9 F)2025-03-03
Anchorage Merrill FldRecord high minimum temperature1.1 C (34.0 F)2025-03-02
Ft YukonRecord high maximum temperature0.0 C (32.0 F)2025-03-05
Yakataga APRecord high maximum temperature10.6 C (51.1 F)2025-03-02
Tanana APRecord high minimum temperature-4.9 C (23.2 F)2025-03-06
Yakutat APRecord high minimum temperature3.9 C (39.0 F)2025-02-28
Kenai APRecord high maximum temperature10.6 C (51.1 F)2025-03-02
McKinley ParkRecord high minimum temperature0.0 C (32.0 F)2025-03-03
Haines APRecord high maximum temperature8.3 C (46.9 F)2025-03-04
Homer APRecord high maximum temperature8.3 C (46.9 F)2025-03-01
Elmendorf AFBRecord high maximum temperature11.0 C (51.8 F)2025-03-03
Aniak APRecord high maximum temperature7.8 C (46.0 F)2025-03-05
King SalmonRecord high minimum temperature1.7 C (35.1 F)2025-03-03
McGrath APRecord high maximum temperature5.6 C (42.1 F)2025-03-05

Records per Day

Peak day 49
Records per day during Heat wave in United States, 26 February to 8 March 2025 Records set or tied each day from 26 February 2025 to 8 March 2025. The most in one day was 49 on 3 March 2025. 0 13 25 38 50 02-2602-2803-0203-0403-0603-08
Records set or tied each day from 26 February 2025 to 8 March 2025. The most in one day was 49 on 3 March 2025.
Records per day during Heat wave in United States, 26 February to 8 March 2025
DateRecords
2025-02-261
2025-02-271
2025-02-289
2025-03-0117
2025-03-0238
2025-03-0349
2025-03-0440
2025-03-0530
2025-03-0619
2025-03-073
2025-03-081

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States, 26 February to 8 March 2025 ranked by margin
Wiseman, 03-065.5 C (9.9 F)
Elmendorf AFB, 03-034.9 C (8.8 F)
Yakataga AP, 03-023.9 C (7.0 F)
Kenai AP, 03-022.8 C (5.0 F)
Aniak AP, 03-052.8 C (5.0 F)
Anchorage Merrill Fld, 03-022.2 C (4.0 F)
Yakataga AP, 03-032.2 C (4.0 F)
Kenai AP, 03-032.2 C (4.0 F)
Anchorage Merrill Fld, 03-021.7 C (3.1 F)
Matanuska Exp Farm, 03-031.6 C (2.9 F)
Ft Yukon, 03-051.1 C (2.0 F)
McKinley Park, 03-031.1 C (2.0 F)
Haines AP, 03-041.1 C (2.0 F)
Ft Yukon, 03-061.1 C (2.0 F)
Yakutat AP, 02-280.6 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, 26 February to 8 March 2025 208 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 0.02.04.06.08.0 Margin (C) Years the old record stood
208 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, 26 February to 8 March 2025
Margin (C)Years the old record stood
5.584
1.6100
1.796
1.1104
2.287
3.956
0.1104
1.184
1.182
0.687
2.268
2.868
0.582
4.960
2.870
2.268
1.176
0.680
0.682
0.176
0.680
1.168
0.570
2.268
0.668
2.067
3.960
1.668
0.658
0.667
0.556
1.756
0.556
1.156
1.156
1.158
0.562
0.556
1.160
0.656
2.235
1.146
0.157
1.744
1.140
1.140
3.324
1.144
0.644
2.835
0.548
1.136
2.840
0.637
1.635
1.735
5.628
0.624
1.616
1.136
1.735
3.428
1.040
1.135
0.636
1.622
1.136
0.516
3.430
4.515
0.340
1.036
0.340
0.440
0.622
0.535
0.635
1.735
2.822
3.924
5.015
0.936
0.336
4.115
2.210
1.116
0.635
0.522
3.824
5.022
1.112
0.622
1.122
1.624
2.222
2.720
2.222
3.422
6.115
2.322
1.722
1.18
1.110
1.122
2.222
3.316
3.914
2.815
3.416
4.510
2.322
1.624
0.528
4.516
2.220
0.616
1.722
2.716
2.222
2.816
2.222
6.23
2.222
2.315
1.720
1.722
0.824
1.716
1.422
3.015
2.116
2.510
0.720
1.422
0.58
1.110
1.18
1.120
1.122
1.716
0.524
5.07
3.315
1.122
1.122
1.122
3.98
0.622
0.722
0.422
0.422
1.710
0.622
1.715
5.53
0.522
0.521
0.522
0.522
1.116
1.116
5.03
2.210
2.310
1.816
0.216
0.416
0.222
0.322
1.62
0.67
0.616
1.115
3.93
1.710
1.711
0.616
2.27
0.616
0.615
1.215
3.93
2.88
0.910
0.510
2.310
1.612
0.715
1.110
0.410
0.210
0.610
1.17
2.83
0.510
2.83
0.310
0.49
1.63
0.79

Compared With Other Events

Station records per event
Station records in Heat wave in United States, 26 February to 8 March 2025 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, 26 February to 8 March 2025 (this event)208 records

Every Record Set

20 of 208
Every record set or tied during Heat wave in United States, 26 February to 8 March 2025, in date order
DateStationRecordValueMarginYears stoodSignificance
2025-02-28Yakutat APRecord high minimum temperature3.9 C (39.0 F)0.6 C (1.1 F)8736 of 100 (Notable)
2025-03-01Homer APRecord high maximum temperature8.3 C (46.9 F)0.5 C (0.9 F)8234 of 100 (Routine)
2025-03-02Anchorage Merrill FldRecord high minimum temperature1.1 C (34.0 F)1.7 C (3.1 F)9641 of 100 (Notable)
2025-03-02Anchorage Merrill FldRecord high maximum temperature11.1 C (52.0 F)2.2 C (4.0 F)8740 of 100 (Notable)
2025-03-02Yakataga APRecord high maximum temperature10.6 C (51.1 F)3.9 C (7.0 F)5640 of 100 (Notable)
2025-03-02Kenai APRecord high maximum temperature10.6 C (51.1 F)2.8 C (5.0 F)6836 of 100 (Notable)
2025-03-03Matanuska Exp FarmRecord high minimum temperature4.4 C (39.9 F)1.6 C (2.9 F)10042 of 100 (Notable)
2025-03-03McKinley ParkRecord high minimum temperature0.0 C (32.0 F)1.1 C (2.0 F)8436 of 100 (Notable)
2025-03-03Yakataga APRecord high maximum temperature10.0 C (50.0 F)2.2 C (4.0 F)6836 of 100 (Notable)
2025-03-03Elmendorf AFBRecord high maximum temperature11.0 C (51.8 F)4.9 C (8.8 F)6034 of 100 (Routine)
2025-03-03Kenai APRecord high maximum temperature8.9 C (48.0 F)2.2 C (4.0 F)6834 of 100 (Routine)
2025-03-03King SalmonRecord high minimum temperature1.7 C (35.1 F)0.6 C (1.1 F)8032 of 100 (Routine)
2025-03-04Haines APRecord high maximum temperature8.3 C (46.9 F)1.1 C (2.0 F)8236 of 100 (Notable)
2025-03-05Ft YukonRecord high maximum temperature0.0 C (32.0 F)1.1 C (2.0 F)10441 of 100 (Notable)
2025-03-05Aniak APRecord high maximum temperature7.8 C (46.0 F)2.8 C (5.0 F)7034 of 100 (Routine)
2025-03-05McGrath APRecord high maximum temperature5.6 C (42.1 F)0.6 C (1.1 F)8232 of 100 (Routine)
2025-03-05Tanana APRecord high minimum temperature-5.5 C (22.1 F)0.1 C (0.2 F)7632 of 100 (Routine)
2025-03-06WisemanRecord high maximum temperature3.3 C (37.9 F)5.5 C (9.9 F)8443 of 100 (Notable)
2025-03-06Tanana APRecord high minimum temperature-4.9 C (23.2 F)0.1 C (0.2 F)10440 of 100 (Notable)
2025-03-06Ft YukonRecord high minimum temperature-6.7 C (19.9 F)1.1 C (2.0 F)7633 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 208 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.