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Built 2026-10-19 (19 October 2026)

Heat wave in United States, 24 to 27 February 2020

Heat wave in United States, 24 to 27 February 2020: 107 records at 97 stations, peak on 26 February 2020. Closed.

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

Key Facts

  • Heat wave in United States, 24 to 27 February 2020 set or tied 107 station records at 97 stations.
  • It ran from 24 February 2020 to 27 February 2020 (4 days) and its peak day was 26 February 2020.
  • Status: closed.
  • Middleboro set a daily record high minimum temperature of 4.4 C (39.9 F) on 27 February 2020.
  • The busiest day was 26 February 2020 with 70 records.
  • The oldest broken record in the ranked list had stood for 117 years.

Footprint

24 to 27 February 2020
Footprint of Heat wave in United States, 24 to 27 February 2020 The area covered by Heat wave in United States, 24 to 27 February 2020 is outlined, with 18 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United States, 24 to 27 February 2020 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in United States, 24 to 27 February 2020: stations that set records in the event
StationTypeValueDate
MiddleboroRecord high minimum temperature4.4 C (39.9 F)2020-02-27
Greenville Muni APRecord high minimum temperature1.1 C (34.0 F)2020-02-25
Sussex 1 NWRecord high minimum temperature3.9 C (39.0 F)2020-02-26
Chambersburg 1 ESERecord high minimum temperature6.7 C (44.1 F)2020-02-26
Stevensville 2SWRecord high minimum temperature6.7 C (44.1 F)2020-02-26
DanburyRecord high minimum temperature6.1 C (43.0 F)2020-02-26
Harrisburg Capital City APRecord high minimum temperature8.3 C (46.9 F)2020-02-26
Conowingo DamRecord high minimum temperature7.2 C (45.0 F)2020-02-26
BrocktonRecord high minimum temperature5.6 C (42.1 F)2020-02-26
HyannisRecord high minimum temperature5.6 C (42.1 F)2020-02-26
Hartford Brainard FldRecord high minimum temperature6.1 C (43.0 F)2020-02-26
Liberty 1 NERecord high minimum temperature1.7 C (35.1 F)2020-02-26
Middletown Harrisburg Intl APRecord high minimum temperature7.2 C (45.0 F)2020-02-26
Westchester Co APRecord high minimum temperature5.0 C (41.0 F)2020-02-26
Riverhead Rsch FarmRecord high minimum temperature5.6 C (42.1 F)2020-02-26
Neshaminy FallsRecord high minimum temperature6.7 C (44.1 F)2020-02-26
Mt CarmelRecord high minimum temperature6.1 C (43.0 F)2020-02-27
Surry Mtn LakeRecord high minimum temperature0.6 C (33.1 F)2020-02-27

Records per Day

Peak day 70
Records per day during Heat wave in United States, 24 to 27 February 2020 Records set or tied each day from 24 February 2020 to 27 February 2020. The most in one day was 70 on 26 February 2020. 0 20 40 60 80 02-2402-2502-2602-27
Records set or tied each day from 24 February 2020 to 27 February 2020. The most in one day was 70 on 26 February 2020.
Records per day during Heat wave in United States, 24 to 27 February 2020
DateRecords
2020-02-242
2020-02-2510
2020-02-2670
2020-02-2725

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States, 24 to 27 February 2020 ranked by margin
Danbury, 02-263.9 C (7.0 F)
Greenville Muni AP, 02-253.3 C (5.9 F)
Harrisburg Capital City AP, 02-262.7 C (4.9 F)
Neshaminy Falls, 02-262.3 C (4.1 F)
Westchester Co AP, 02-261.7 C (3.1 F)
Middleboro, 02-271.6 C (2.9 F)
Conowingo Dam, 02-261.6 C (2.9 F)
Middleboro, 02-261.1 C (2.0 F)
Sussex 1 NW, 02-261.1 C (2.0 F)
Hartford Brainard Fld, 02-261.1 C (2.0 F)
Middletown Harrisburg Intl AP, 02-261.1 C (2.0 F)
Mt Carmel, 02-271.1 C (2.0 F)
Chambersburg 1 ESE, 02-260.6 C (1.1 F)
Stevensville 2SW, 02-260.6 C (1.1 F)
Brockton, 02-260.6 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, 24 to 27 February 2020 107 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
107 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, 24 to 27 February 2020
Margin (C)Years the old record stood
1.6117
1.1113
3.389
1.193
0.592
0.689
0.689
3.968
2.768
1.662
0.662
0.662
1.162
0.662
1.162
1.762
1.162
0.668
0.662
2.344
2.344
1.162
0.665
1.162
2.838
2.244
2.244
1.144
0.638
1.634
2.834
1.744
1.144
0.644
1.744
3.934
0.644
2.338
0.534
2.244
1.144
1.144
1.244
1.742
1.144
2.221
1.242
1.742
0.538
1.724
1.220
0.542
1.624
0.544
0.540
0.638
0.542
1.217
1.217
1.142
0.620
2.324
1.634
2.821
0.522
0.638
2.220
1.120
0.618
2.820
1.718
1.221
0.624
1.717
2.820
1.120
0.620
0.621
2.221
0.624
1.120
1.724
1.121
1.117
1.72
2.220
1.62
0.618
0.624
1.117
0.524
0.517
1.717
0.622
0.520
0.61
0.517
0.522
0.520
0.61
0.621
0.620
2.21
2.21
1.72
0.61
0.61

Compared With Other Events

Station records per event
Station records in Heat wave in United States, 24 to 27 February 2020 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, 24 to 27 February 2020 (this event)107 records

Every Record Set

20 of 107
Every record set or tied during Heat wave in United States, 24 to 27 February 2020, in date order
DateStationRecordValueMarginYears stoodSignificance
2020-02-25Greenville Muni APRecord high minimum temperature1.1 C (34.0 F)3.3 C (5.9 F)8940 of 100 (Notable)
2020-02-25Greenville Muni APRecord high maximum temperature7.2 C (45.0 F)0.5 C (0.9 F)9237 of 100 (Notable)
2020-02-26MiddleboroRecord high minimum temperature4.4 C (39.9 F)1.1 C (2.0 F)11341 of 100 (Notable)
2020-02-26Sussex 1 NWRecord high minimum temperature3.9 C (39.0 F)1.1 C (2.0 F)9339 of 100 (Notable)
2020-02-26Chambersburg 1 ESERecord high minimum temperature6.7 C (44.1 F)0.6 C (1.1 F)8937 of 100 (Notable)
2020-02-26Stevensville 2SWRecord high minimum temperature6.7 C (44.1 F)0.6 C (1.1 F)8936 of 100 (Notable)
2020-02-26DanburyRecord high minimum temperature6.1 C (43.0 F)3.9 C (7.0 F)6834 of 100 (Routine)
2020-02-26Harrisburg Capital City APRecord high minimum temperature8.3 C (46.9 F)2.7 C (4.9 F)6833 of 100 (Routine)
2020-02-26Conowingo DamRecord high minimum temperature7.2 C (45.0 F)1.6 C (2.9 F)6229 of 100 (Routine)
2020-02-26BrocktonRecord high minimum temperature5.6 C (42.1 F)0.6 C (1.1 F)6229 of 100 (Routine)
2020-02-26HyannisRecord high minimum temperature5.6 C (42.1 F)0.6 C (1.1 F)6229 of 100 (Routine)
2020-02-26Hartford Brainard FldRecord high minimum temperature6.1 C (43.0 F)1.1 C (2.0 F)6229 of 100 (Routine)
2020-02-26Liberty 1 NERecord high minimum temperature1.7 C (35.1 F)0.6 C (1.1 F)6228 of 100 (Routine)
2020-02-26Middletown Harrisburg Intl APRecord high minimum temperature7.2 C (45.0 F)1.1 C (2.0 F)6228 of 100 (Routine)
2020-02-26Westchester Co APRecord high minimum temperature5.0 C (41.0 F)1.7 C (3.1 F)6228 of 100 (Routine)
2020-02-26Riverhead Rsch FarmRecord high minimum temperature5.6 C (42.1 F)0.6 C (1.1 F)6227 of 100 (Routine)
2020-02-26Neshaminy FallsRecord high minimum temperature6.7 C (44.1 F)2.3 C (4.1 F)4427 of 100 (Routine)
2020-02-27MiddleboroRecord high minimum temperature4.4 C (39.9 F)1.6 C (2.9 F)11742 of 100 (Notable)
2020-02-27Mt CarmelRecord high minimum temperature6.1 C (43.0 F)1.1 C (2.0 F)6227 of 100 (Routine)
2020-02-27Surry Mtn LakeRecord high minimum temperature0.6 C (33.1 F)0.6 C (1.1 F)6827 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 107 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.