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Built 2026-10-19 (19 October 2026)

Heat wave in United States, 10 to 29 October 2018

Heat wave in United States, 10 to 29 October 2018: 159 records at 55 stations, peak on 26 October 2018. Closed.

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

Key Facts

  • Heat wave in United States, 10 to 29 October 2018 set or tied 159 station records at 55 stations.
  • It ran from 10 October 2018 to 29 October 2018 (20 days) and its peak day was 26 October 2018.
  • Status: closed.
  • Skagway set a daily record high minimum temperature of 8.9 C (48.0 F) on 21 October 2018.
  • The busiest day was 26 October 2018 with 20 records.
  • The oldest broken record in the ranked list had stood for 107 years.

Footprint

10 to 29 October 2018
Footprint of Heat wave in United States, 10 to 29 October 2018 The area covered by Heat wave in United States, 10 to 29 October 2018 is outlined, with 16 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United States, 10 to 29 October 2018 is outlined, with 16 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in United States, 10 to 29 October 2018: stations that set records in the event
StationTypeValueDate
SkagwayRecord high minimum temperature8.9 C (48.0 F)2018-10-21
Yakutat APRecord high minimum temperature11.1 C (52.0 F)2018-10-15
Cordova APRecord high maximum temperature12.8 C (55.0 F)2018-10-25
EagleRecord high maximum temperature12.8 C (55.0 F)2018-10-17
Anchorage Merrill FldRecord high maximum temperature14.4 C (57.9 F)2018-10-17
Talkeetna APRecord high minimum temperature5.6 C (42.1 F)2018-10-16
Kenai APRecord high maximum temperature12.2 C (54.0 F)2018-10-26
Annex CreekRecord high minimum temperature8.9 C (48.0 F)2018-10-15
Petersburg 1Record high maximum temperature15.6 C (60.1 F)2018-10-15
Seward APRecord high maximum temperature11.7 C (53.1 F)2018-10-20
University Exp STNRecord high minimum temperature1.7 C (35.1 F)2018-10-24
WisemanRecord high minimum temperature-0.6 C (30.9 F)2018-10-18
Nenana Muni APRecord high maximum temperature11.7 C (53.1 F)2018-10-24
Fairbanks Intl APRecord high minimum temperature-1.0 C (30.2 F)2018-10-26
Homer APRecord high maximum temperature14.4 C (57.9 F)2018-10-10
PelicanRecord high minimum temperature11.1 C (52.0 F)2018-10-15

Records per Day

Peak day 20
Records per day during Heat wave in United States, 10 to 29 October 2018 Records set or tied each day from 10 October 2018 to 29 October 2018. The most in one day was 20 on 26 October 2018. 0 5 10 15 20 10-1010-1210-1410-1610-1810-2010-2210-2410-2610-28
Records set or tied each day from 10 October 2018 to 29 October 2018. The most in one day was 20 on 26 October 2018.
Records per day during Heat wave in United States, 10 to 29 October 2018
DateRecords
2018-10-102
2018-10-112
2018-10-124
2018-10-134
2018-10-146
2018-10-1514
2018-10-1618
2018-10-1717
2018-10-183
2018-10-191
2018-10-208
2018-10-2112
2018-10-223
2018-10-236
2018-10-2415
2018-10-2512
2018-10-2620
2018-10-277
2018-10-283
2018-10-292

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States, 10 to 29 October 2018 ranked by margin
Kenai AP, 10-263.3 C (5.9 F)
Yakutat AP, 10-152.8 C (5.0 F)
Skagway, 10-212.2 C (4.0 F)
Skagway, 10-162.2 C (4.0 F)
Eagle, 10-172.2 C (4.0 F)
Anchorage Merrill Fld, 10-171.6 C (2.9 F)
Anchorage Merrill Fld, 10-241.6 C (2.9 F)
Kenai AP, 10-251.2 C (2.2 F)
Cordova AP, 10-251.1 C (2.0 F)
Skagway, 10-151.1 C (2.0 F)
Annex Creek, 10-151.1 C (2.0 F)
University Exp STN, 10-241.1 C (2.0 F)
Fairbanks Intl AP, 10-260.7 C (1.3 F)
Talkeetna AP, 10-160.6 C (1.1 F)
Petersburg 1, 10-150.6 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, 10 to 29 October 2018 159 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 0.01.02.03.04.0 Margin (C) Years the old record stood
159 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, 10 to 29 October 2018
Margin (C)Years the old record stood
2.2104
2.892
1.1107
2.287
2.292
1.187
1.687
3.369
0.692
1.181
1.680
1.180
0.680
0.680
0.580
0.781
0.680
0.581
1.267
0.549
1.165
1.760
0.665
0.572
0.556
1.756
3.333
0.660
1.748
1.632
1.144
0.645
1.644
1.636
0.648
2.236
0.648
0.648
1.148
1.140
0.648
3.312
1.144
1.148
0.644
1.140
1.136
1.632
0.640
1.132
2.229
0.532
0.145
1.737
0.541
0.645
1.720
0.637
0.640
0.637
0.639
1.632
0.536
0.539
1.132
1.116
1.220
0.525
1.120
1.120
1.132
1.728
0.539
2.325
0.536
0.632
0.516
1.115
0.616
1.716
0.532
1.616
2.216
3.512
0.516
1.78
0.524
0.525
3.33
0.628
1.715
1.64
0.68
0.524
1.120
2.28
0.58
0.64
1.14
0.64
1.115
0.525
1.715
0.54
1.112
1.815
0.53
0.616
2.24
1.115
1.14
1.115
3.97
0.224
1.320
0.64
1.74
1.18
0.515
1.13
0.516
0.516
0.54
1.016
1.116
1.14
0.67
1.24
0.53
0.516
2.24
0.61
0.516
1.115
2.28
0.716
1.116
2.21
0.64
0.54
2.20
1.112
2.08
0.115
0.50
0.54
0.64
0.58
1.20
0.64
0.512
0.64
0.18
1.50
0.28
0.54
0.64
0.14
0.24

Compared With Other Events

Station records per event
Station records in Heat wave in United States, 10 to 29 October 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 United States, 10 to 29 October 2018 (this event)159 records

Every Record Set

20 of 159
Every record set or tied during Heat wave in United States, 10 to 29 October 2018, in date order
DateStationRecordValueMarginYears stoodSignificance
2018-10-10Homer APRecord high maximum temperature14.4 C (57.9 F)0.5 C (0.9 F)8133 of 100 (Routine)
2018-10-15Yakutat APRecord high minimum temperature11.1 C (52.0 F)2.8 C (5.0 F)9244 of 100 (Notable)
2018-10-15SkagwayRecord high minimum temperature10.0 C (50.0 F)1.1 C (2.0 F)8739 of 100 (Notable)
2018-10-15Annex CreekRecord high minimum temperature8.9 C (48.0 F)1.1 C (2.0 F)8137 of 100 (Notable)
2018-10-15Petersburg 1Record high maximum temperature15.6 C (60.1 F)0.6 C (1.1 F)8035 of 100 (Notable)
2018-10-15PelicanRecord high minimum temperature11.1 C (52.0 F)0.5 C (0.9 F)4930 of 100 (Routine)
2018-10-16SkagwayRecord high minimum temperature9.4 C (48.9 F)2.2 C (4.0 F)8742 of 100 (Notable)
2018-10-16Talkeetna APRecord high minimum temperature5.6 C (42.1 F)0.6 C (1.1 F)9238 of 100 (Notable)
2018-10-17EagleRecord high maximum temperature12.8 C (55.0 F)2.2 C (4.0 F)9240 of 100 (Notable)
2018-10-17Anchorage Merrill FldRecord high maximum temperature14.4 C (57.9 F)1.6 C (2.9 F)8739 of 100 (Notable)
2018-10-18WisemanRecord high minimum temperature-0.6 C (30.9 F)0.5 C (0.9 F)8034 of 100 (Routine)
2018-10-20Seward APRecord high maximum temperature11.7 C (53.1 F)0.6 C (1.1 F)8035 of 100 (Notable)
2018-10-21SkagwayRecord high minimum temperature8.9 C (48.0 F)2.2 C (4.0 F)10446 of 100 (Notable)
2018-10-24Anchorage Merrill FldRecord high minimum temperature4.4 C (39.9 F)1.6 C (2.9 F)8037 of 100 (Notable)
2018-10-24University Exp STNRecord high minimum temperature1.7 C (35.1 F)1.1 C (2.0 F)8035 of 100 (Notable)
2018-10-24Nenana Muni APRecord high maximum temperature11.7 C (53.1 F)0.6 C (1.1 F)8034 of 100 (Routine)
2018-10-25Cordova APRecord high maximum temperature12.8 C (55.0 F)1.1 C (2.0 F)10743 of 100 (Notable)
2018-10-25Kenai APRecord high maximum temperature10.6 C (51.1 F)1.2 C (2.2 F)6733 of 100 (Routine)
2018-10-26Kenai APRecord high maximum temperature12.2 C (54.0 F)3.3 C (5.9 F)6938 of 100 (Notable)
2018-10-26Fairbanks Intl APRecord high minimum temperature-1.0 C (30.2 F)0.7 C (1.3 F)8134 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 159 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.