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Built 2026-10-14 (14 October 2026)

Heat wave in United States, 2 to 15 December 2017

Heat wave in United States, 2 to 15 December 2017: 285 records at 58 stations, peak on 13 December 2017. Closed.

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

Key Facts

  • Heat wave in United States, 2 to 15 December 2017 set or tied 285 station records at 58 stations.
  • It ran from 2 December 2017 to 15 December 2017 (14 days) and its peak day was 13 December 2017.
  • Status: closed.
  • Skagway set a daily record high maximum temperature of 11.1 C (52.0 F) on 8 December 2017.
  • The busiest day was 13 December 2017 with 54 records.
  • The oldest broken record in the ranked list had stood for 118 years.

Footprint

2 to 15 December 2017
Footprint of Heat wave in United States, 2 to 15 December 2017 The area covered by Heat wave in United States, 2 to 15 December 2017 is outlined, with 12 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United States, 2 to 15 December 2017 is outlined, with 12 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in United States, 2 to 15 December 2017: stations that set records in the event
StationTypeValueDate
SkagwayRecord high maximum temperature11.1 C (52.0 F)2017-12-08
Yakutat APRecord high maximum temperature10.6 C (51.1 F)2017-12-07
Haines APRecord high maximum temperature10.0 C (50.0 F)2017-12-08
Sitka APRecord high minimum temperature11.7 C (53.1 F)2017-12-07
Ketchikan APRecord high minimum temperature7.8 C (46.0 F)2017-12-11
Cordova APRecord high maximum temperature10.0 C (50.0 F)2017-12-13
Matanuska Exp FarmRecord high minimum temperature2.8 C (37.0 F)2017-12-04
Seward APRecord high maximum temperature10.0 C (50.0 F)2017-12-12
Talkeetna APRecord high maximum temperature7.2 C (45.0 F)2017-12-13
Petersburg 1Record high maximum temperature11.7 C (53.1 F)2017-12-10
Anchorage Merrill FldRecord high maximum temperature8.3 C (46.9 F)2017-12-13
McKinley ParkRecord high maximum temperature6.7 C (44.1 F)2017-12-14

Records per Day

Peak day 54
Records per day during Heat wave in United States, 2 to 15 December 2017 Records set or tied each day from 2 December 2017 to 15 December 2017. The most in one day was 54 on 13 December 2017. 0 15 30 45 60 12-0212-0412-0612-0812-1012-1212-14
Records set or tied each day from 2 December 2017 to 15 December 2017. The most in one day was 54 on 13 December 2017.
Records per day during Heat wave in United States, 2 to 15 December 2017
DateRecords
2017-12-021
2017-12-033
2017-12-043
2017-12-057
2017-12-0620
2017-12-0722
2017-12-0816
2017-12-0912
2017-12-1020
2017-12-1145
2017-12-1237
2017-12-1354
2017-12-1438
2017-12-157

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States, 2 to 15 December 2017 ranked by margin
McKinley Park, 12-143.4 C (6.1 F)
Skagway, 12-082.8 C (5.0 F)
Yakutat AP, 12-092.8 C (5.0 F)
Yakutat AP, 12-072.3 C (4.1 F)
Yakutat AP, 12-062.3 C (4.1 F)
Sitka AP, 12-072.3 C (4.1 F)
Petersburg 1, 12-102.3 C (4.1 F)
Haines AP, 12-082.2 C (4.0 F)
Matanuska Exp Farm, 12-132.2 C (4.0 F)
Talkeetna AP, 12-132.2 C (4.0 F)
Yakutat AP, 12-101.7 C (3.1 F)
Matanuska Exp Farm, 12-141.6 C (2.9 F)
Yakutat AP, 12-141.6 C (2.9 F)
Ketchikan AP, 12-111.1 C (2.0 F)
Cordova AP, 12-131.1 C (2.0 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, 2 to 15 December 2017 285 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 0.03.06.09.012.0 Margin (C) Years the old record stood
285 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, 2 to 15 December 2017
Margin (C)Years the old record stood
2.8118
2.391
2.891
2.292
2.391
1.187
2.354
1.780
1.187
1.676
1.183
2.276
1.183
1.176
2.276
3.476
0.579
2.372
1.672
1.176
0.683
3.570
0.576
0.674
0.176
0.674
0.674
0.672
0.174
0.672
0.574
6.131
0.572
0.572
3.317
5.550
3.356
2.235
1.172
2.755
1.256
4.552
1.870
0.656
1.266
1.756
0.566
1.158
1.156
0.172
1.754
0.640
1.759
3.950
1.755
1.752
0.655
0.555
0.631
0.531
2.850
1.155
1.752
1.752
2.256
1.762
1.156
1.755
1.743
1.248
0.162
0.656
1.150
2.228
1.156
0.650
8.434
1.748
0.650
0.650
2.243
0.550
4.039
0.650
2.248
10.416
3.836
3.439
7.216
0.650
1.632
0.552
0.650
0.648
2.820
0.643
0.638
0.148
1.231
2.335
1.639
6.728
1.143
2.832
7.628
5.531
0.628
3.315
0.532
1.128
0.131
1.70
1.143
2.728
1.635
0.643
0.543
0.643
0.528
3.912
6.032
5.131
0.535
1.136
2.231
1.135
1.639
1.736
1.131
1.231
0.515
0.631
0.628
0.628
2.231
0.64
1.728
0.635
1.128
1.731
1.635
1.136
4.428
4.428
0.528
1.132
0.631
3.916
1.132
1.128
0.535
1.732
0.630
2.631
1.435
2.211
1.115
4.36
0.628
1.728
1.128
0.628
1.720
1.131
0.531
0.623
1.116
0.620
2.211
1.128
2.828
2.928
7.712
2.331
2.328
1.831
3.228
2.622
0.935
1.120
1.128
0.531
1.17
0.627
0.628
1.232
1.132
0.531
0.631
0.531
0.531
1.031
1.928
0.932
0.732
1.115
1.66
0.112
0.620
0.531

Compared With Other Events

Station records per event
Station records in Heat wave in United States, 2 to 15 December 2017 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, 2 to 15 December 2017 (this event)285 records

Every Record Set

20 of 285
Every record set or tied during Heat wave in United States, 2 to 15 December 2017, in date order
DateStationRecordValueMarginYears stoodSignificance
2017-12-04Matanuska Exp FarmRecord high minimum temperature2.8 C (37.0 F)1.1 C (2.0 F)8335 of 100 (Notable)
2017-12-06Yakutat APRecord high minimum temperature6.7 C (44.1 F)2.3 C (4.1 F)9140 of 100 (Notable)
2017-12-07Yakutat APRecord high maximum temperature10.6 C (51.1 F)2.3 C (4.1 F)9142 of 100 (Notable)
2017-12-07Sitka APRecord high minimum temperature11.7 C (53.1 F)2.3 C (4.1 F)5438 of 100 (Notable)
2017-12-07Haines APRecord high maximum temperature11.7 C (53.1 F)1.1 C (2.0 F)8335 of 100 (Notable)
2017-12-08SkagwayRecord high maximum temperature11.1 C (52.0 F)2.8 C (5.0 F)11844 of 100 (Notable)
2017-12-08Haines APRecord high maximum temperature10.0 C (50.0 F)2.2 C (4.0 F)9240 of 100 (Notable)
2017-12-09Yakutat APRecord high minimum temperature6.7 C (44.1 F)2.8 C (5.0 F)9141 of 100 (Notable)
2017-12-10Yakutat APRecord high maximum temperature10.6 C (51.1 F)1.7 C (3.1 F)8038 of 100 (Notable)
2017-12-10Petersburg 1Record high maximum temperature11.7 C (53.1 F)2.3 C (4.1 F)7234 of 100 (Routine)
2017-12-11Ketchikan APRecord high minimum temperature7.8 C (46.0 F)1.1 C (2.0 F)8738 of 100 (Notable)
2017-12-12Seward APRecord high maximum temperature10.0 C (50.0 F)1.1 C (2.0 F)7635 of 100 (Notable)
2017-12-12Ketchikan APRecord high minimum temperature7.2 C (45.0 F)0.5 C (0.9 F)7934 of 100 (Routine)
2017-12-13Cordova APRecord high maximum temperature10.0 C (50.0 F)1.1 C (2.0 F)8738 of 100 (Notable)
2017-12-13Matanuska Exp FarmRecord high minimum temperature3.9 C (39.0 F)2.2 C (4.0 F)7635 of 100 (Notable)
2017-12-13Talkeetna APRecord high maximum temperature7.2 C (45.0 F)2.2 C (4.0 F)7635 of 100 (Notable)
2017-12-13Anchorage Merrill FldRecord high maximum temperature8.3 C (46.9 F)1.1 C (2.0 F)7634 of 100 (Routine)
2017-12-14Matanuska Exp FarmRecord high maximum temperature7.2 C (45.0 F)1.6 C (2.9 F)7635 of 100 (Notable)
2017-12-14McKinley ParkRecord high maximum temperature6.7 C (44.1 F)3.4 C (6.1 F)7634 of 100 (Routine)
2017-12-14Yakutat APRecord high maximum temperature9.4 C (48.9 F)1.6 C (2.9 F)7234 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 285 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.