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Built 2026-10-19 (19 October 2026)

Heat wave in United States and Bahamas, The, 1 to 13 August 2018

Heat wave in United States and Bahamas, The, 1 to 13 August 2018: 243 records at 158 stations, peak on 6 August 2018. Closed.

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

Key Facts

  • Heat wave in United States and Bahamas, The, 1 to 13 August 2018 set or tied 243 station records at 158 stations.
  • It ran from 1 August 2018 to 13 August 2018 (13 days) and its peak day was 6 August 2018.
  • Status: closed.
  • Avon Park 2 W set a daily record high minimum temperature of 25.6 C (78.1 F) on 2 August 2018.
  • The busiest day was 6 August 2018 with 61 records.
  • The oldest broken record in the ranked list had stood for 123 years.

Footprint

1 to 13 August 2018
Footprint of Heat wave in United States and Bahamas, The, 1 to 13 August 2018 The area covered by Heat wave in United States and Bahamas, The, 1 to 13 August 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 and Bahamas, The, 1 to 13 August 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 and Bahamas, The, 1 to 13 August 2018: stations that set records in the event
StationTypeValueDate
Avon Park 2 WRecord high minimum temperature25.6 C (78.1 F)2018-08-02
MiddleboroRecord high minimum temperature23.3 C (73.9 F)2018-08-03
Lewisburg 3 NRecord high minimum temperature22.2 C (72.0 F)2018-08-09
Inverness 3 SERecord high minimum temperature25.0 C (77.0 F)2018-08-06
SalisburyRecord high minimum temperature25.6 C (78.1 F)2018-08-10
WarrenRecord high minimum temperature21.1 C (70.0 F)2018-08-08
BrocktonRecord high minimum temperature23.3 C (73.9 F)2018-08-08
Coldwater St SchoolRecord high minimum temperature22.8 C (73.0 F)2018-08-05
GraylingRecord high minimum temperature22.2 C (72.0 F)2018-08-05
Oconto 4 WRecord high minimum temperature21.1 C (70.0 F)2018-08-05
Saginaw Mbs Intl APRecord high minimum temperature22.2 C (72.0 F)2018-08-05
Lake City Exp FarmRecord high minimum temperature20.6 C (69.1 F)2018-08-06
Plant CityRecord high maximum temperature36.7 C (98.1 F)2018-08-08
TullahomaRecord high minimum temperature23.3 C (73.9 F)2018-08-07
Greenville Muni APRecord high minimum temperature19.4 C (66.9 F)2018-08-07
BelfastRecord high minimum temperature20.6 C (69.1 F)2018-08-08

Records per Day

Peak day 61
Records per day during Heat wave in United States and Bahamas, The, 1 to 13 August 2018 Records set or tied each day from 1 August 2018 to 13 August 2018. The most in one day was 61 on 6 August 2018. 0 20 40 60 80 08-0108-0308-0508-0708-0908-11
Records set or tied each day from 1 August 2018 to 13 August 2018. The most in one day was 61 on 6 August 2018.
Records per day during Heat wave in United States and Bahamas, The, 1 to 13 August 2018
DateRecords
2018-08-016
2018-08-027
2018-08-0319
2018-08-0411
2018-08-0528
2018-08-0661
2018-08-0743
2018-08-0831
2018-08-0929
2018-08-105
2018-08-112
2018-08-131

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States and Bahamas, The, 1 to 13 August 2018 ranked by margin
Middleboro, 08-032.7 C (4.9 F)
Belfast, 08-082.3 C (4.1 F)
Brockton, 08-022.2 C (4.0 F)
Middleboro, 08-091.6 C (2.9 F)
Avon Park 2 W, 08-021.2 C (2.2 F)
Salisbury, 08-101.2 C (2.2 F)
Lewisburg 3 N, 08-091.1 C (2.0 F)
Warren, 08-081.1 C (2.0 F)
Greenville Muni AP, 08-071.1 C (2.0 F)
Greenville Muni AP, 08-081.1 C (2.0 F)
Inverness 3 SE, 08-060.6 C (1.1 F)
Avon Park 2 W, 08-070.6 C (1.1 F)
Plant City, 08-080.6 C (1.1 F)
Coldwater St School, 08-050.6 C (1.1 F)
Lake City Exp Farm, 08-060.6 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 Bahamas, The, 1 to 13 August 2018 243 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 0.01.32.53.85.0 Margin (C) Years the old record stood
243 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 Bahamas, The, 1 to 13 August 2018
Margin (C)Years the old record stood
1.2121
2.7116
1.179
0.6118
1.2123
0.693
1.6119
1.1101
0.693
0.5101
0.6100
0.5107
0.6115
0.5117
0.5101
2.284
0.599
1.193
2.371
1.192
1.188
0.692
1.780
1.188
1.189
2.280
0.587
1.180
1.180
1.180
1.180
0.580
0.680
1.180
0.576
0.580
0.572
1.171
2.248
0.677
1.263
1.663
2.844
1.171
1.763
1.752
0.568
2.349
1.763
0.569
1.663
0.563
1.757
0.665
0.664
1.163
0.663
1.163
0.663
1.748
0.617
2.255
0.663
0.563
1.241
0.647
2.239
0.549
0.563
0.657
1.152
1.648
1.649
1.652
0.549
1.152
1.652
3.337
1.140
1.152
1.152
3.337
1.744
4.416
1.152
0.640
1.139
1.748
1.737
0.552
1.149
0.652
0.652
0.628
0.639
0.632
0.552
1.144
0.552
0.652
0.633
0.644
0.549
0.652
1.137
1.137
2.329
1.129
1.240
1.137
1.737
1.129
1.621
1.639
0.637
0.640
1.729
0.544
0.629
0.540
1.139
0.628
0.529
1.729
0.539
1.729
0.637
0.540
0.624
2.816
0.539
1.139
1.129
0.537
0.640
0.640
0.637
0.533
1.732
0.67
0.540
0.633
2.316
0.539
0.637
0.637
0.535
0.623
0.540
0.67
0.613
1.012
0.629
0.635
0.529
0.633
1.129
1.216
1.128
0.529
0.629
0.633
1.616
1.128
1.129
0.629
0.515
2.221
1.129
0.629
1.133
1.121
0.616
1.116
0.629
1.129
0.528
1.215
0.529
1.716
1.129
1.711
1.129
0.629
1.121
2.25
1.124
0.67
1.116
0.521
0.621
0.516
0.616
1.116
0.616
0.616
0.516
1.121
0.516
0.516

Compared With Other Events

Station records per event
Station records in Heat wave in United States and Bahamas, The, 1 to 13 August 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 and Bahamas, The, 1 to 13 August 2018 (this event)243 records

Every Record Set

20 of 243
Every record set or tied during Heat wave in United States and Bahamas, The, 1 to 13 August 2018, in date order
DateStationRecordValueMarginYears stoodSignificance
2018-08-02Avon Park 2 WRecord high minimum temperature25.6 C (78.1 F)1.2 C (2.2 F)12150 of 100 (Notable)
2018-08-02BrocktonRecord high minimum temperature25.0 C (77.0 F)2.2 C (4.0 F)8440 of 100 (Notable)
2018-08-03MiddleboroRecord high minimum temperature23.3 C (73.9 F)2.7 C (4.9 F)11646 of 100 (Notable)
2018-08-05Coldwater St SchoolRecord high minimum temperature22.8 C (73.0 F)0.6 C (1.1 F)10041 of 100 (Notable)
2018-08-05GraylingRecord high minimum temperature22.2 C (72.0 F)0.5 C (0.9 F)10741 of 100 (Notable)
2018-08-05Oconto 4 WRecord high minimum temperature21.1 C (70.0 F)0.5 C (0.9 F)11741 of 100 (Notable)
2018-08-05Saginaw Mbs Intl APRecord high minimum temperature22.2 C (72.0 F)0.5 C (0.9 F)10141 of 100 (Notable)
2018-08-06Inverness 3 SERecord high minimum temperature25.0 C (77.0 F)0.6 C (1.1 F)11844 of 100 (Notable)
2018-08-06Lake City Exp FarmRecord high minimum temperature20.6 C (69.1 F)0.6 C (1.1 F)11541 of 100 (Notable)
2018-08-07Avon Park 2 WRecord high minimum temperature25.6 C (78.1 F)0.6 C (1.1 F)9343 of 100 (Notable)
2018-08-07TullahomaRecord high minimum temperature23.3 C (73.9 F)0.5 C (0.9 F)9940 of 100 (Notable)
2018-08-07Greenville Muni APRecord high minimum temperature19.4 C (66.9 F)1.1 C (2.0 F)9339 of 100 (Notable)
2018-08-08WarrenRecord high minimum temperature21.1 C (70.0 F)1.1 C (2.0 F)10142 of 100 (Notable)
2018-08-08Plant CityRecord high maximum temperature36.7 C (98.1 F)0.6 C (1.1 F)9341 of 100 (Notable)
2018-08-08BrocktonRecord high minimum temperature23.3 C (73.9 F)0.5 C (0.9 F)10141 of 100 (Notable)
2018-08-08BelfastRecord high minimum temperature20.6 C (69.1 F)2.3 C (4.1 F)7138 of 100 (Notable)
2018-08-08Greenville Muni APRecord high minimum temperature17.8 C (64.0 F)1.1 C (2.0 F)9238 of 100 (Notable)
2018-08-09Lewisburg 3 NRecord high minimum temperature22.2 C (72.0 F)1.1 C (2.0 F)7946 of 100 (Notable)
2018-08-09MiddleboroRecord high minimum temperature23.3 C (73.9 F)1.6 C (2.9 F)11943 of 100 (Notable)
2018-08-10SalisburyRecord high minimum temperature25.6 C (78.1 F)1.2 C (2.2 F)12344 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 243 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.