Built 2026-10-19 (19 October 2026)

Heat wave in United States, 25 May to 20 June 2019

Heat wave in United States, 25 May to 20 June 2019: 1,440 records at 642 stations, peak on 12 June 2019. Closed.

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

Key Facts

  • Heat wave in United States, 25 May to 20 June 2019 set or tied 1,440 station records at 642 stations.
  • It ran from 25 May 2019 to 20 June 2019 (27 days) and its peak day was 12 June 2019.
  • Status: closed.
  • San Francisco Dwtn set a daily record high minimum temperature of 20.0 C (68.0 F) on 11 June 2019.
  • The busiest day was 12 June 2019 with 438 records.
  • The oldest broken record in the ranked list had stood for 120 years.

Footprint

25 May to 20 June 2019
Footprint of Heat wave in United States, 25 May to 20 June 2019 The area covered by Heat wave in United States, 25 May to 20 June 2019 is outlined, with 16 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in United States, 25 May to 20 June 2019 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, 25 May to 20 June 2019: stations that set records in the event
StationTypeValueDate
San Francisco DwtnRecord high minimum temperature20.0 C (68.0 F)2019-06-11
Half Moon BayRecord high maximum temperature29.4 C (84.9 F)2019-06-11
Salinas APRecord high maximum temperature40.0 C (104.0 F)2019-06-11
ScotiaRecord high maximum temperature33.9 C (93.0 F)2019-06-12
N Bend SW Oregon Rgnl APRecord high maximum temperature26.1 C (79.0 F)2019-06-11
KentfieldRecord high minimum temperature16.7 C (62.1 F)2019-06-11
SpearfishRecord high minimum temperature20.6 C (69.1 F)2019-06-07
Napa State HospitalRecord high minimum temperature21.1 C (70.0 F)2019-06-12
Cascade LocksRecord high maximum temperature35.0 C (95.0 F)2019-06-13
Corvallis State UNIVRecord high maximum temperature36.7 C (98.1 F)2019-06-13
Turlock #2Record high minimum temperature23.9 C (75.0 F)2019-06-12
Port Orford #2Record high maximum temperature28.9 C (84.0 F)2019-06-12
BlaineRecord high minimum temperature15.0 C (59.0 F)2019-06-12
Estacada 2 SERecord high maximum temperature37.8 C (100.0 F)2019-06-14
DownievilleRecord high minimum temperature12.8 C (55.0 F)2019-06-11
Ft Bragg 5 NRecord high minimum temperature15.0 C (59.0 F)2019-06-12

Records per Day

Peak day 438
Records per day during Heat wave in United States, 25 May to 20 June 2019 Records set or tied each day from 25 May 2019 to 20 June 2019. The most in one day was 438 on 12 June 2019. 0 125 250 375 500 05-2505-2805-3106-0306-0606-0906-1206-1506-18
Records set or tied each day from 25 May 2019 to 20 June 2019. The most in one day was 438 on 12 June 2019.
Records per day during Heat wave in United States, 25 May to 20 June 2019
DateRecords
2019-05-251
2019-05-261
2019-05-275
2019-05-289
2019-05-294
2019-05-306
2019-05-317
2019-06-017
2019-06-0215
2019-06-0332
2019-06-0414
2019-06-0516
2019-06-0614
2019-06-0728
2019-06-0837
2019-06-0920
2019-06-1091
2019-06-11268
2019-06-12438
2019-06-13242
2019-06-1454
2019-06-1524
2019-06-1647
2019-06-1727
2019-06-1820
2019-06-197
2019-06-206

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in United States, 25 May to 20 June 2019 ranked by margin
Salinas AP, 06-1110.0 C (18.0 F)
Scotia, 06-129.5 C (17.1 F)
Half Moon Bay, 06-117.2 C (13.0 F)
Port Orford #2, 06-127.2 C (13.0 F)
San Francisco Dwtn, 06-115.0 C (9.0 F)
N Bend SW Oregon Rgnl AP, 06-113.9 C (7.0 F)
Cascade Locks, 06-133.9 C (7.0 F)
Corvallis State UNIV, 06-133.9 C (7.0 F)
Spearfish, 06-073.4 C (6.1 F)
Kentfield, 06-123.4 C (6.1 F)
Estacada 2 SE, 06-143.4 C (6.1 F)
Salinas AP, 06-122.8 C (5.0 F)
Turlock #2, 06-122.8 C (5.0 F)
Napa State Hospital, 06-112.8 C (5.0 F)
Kentfield, 06-112.3 C (4.1 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, 25 May to 20 June 2019 500 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 0.02.55.07.510.0 Margin (C) Years the old record stood
500 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, 25 May to 20 June 2019
Margin (C)Years the old record stood
5.082
7.273
10.082
9.561
3.9105
2.3100
2.884
2.2101
3.9101
3.9102
3.4108
1.170
3.4114
2.8120
3.4104
7.244
1.7106
1.7100
2.282
2.8114
5.086
3.378
1.761
2.2114
1.7100
5.072
8.944
1.7101
3.986
1.1100
4.458
1.7100
3.877
1.1112
1.1118
3.449
1.1114
1.297
1.796
2.882
2.384
2.881
4.558
1.159
2.285
0.6106
0.5114
0.5100
2.782
2.877
0.6120
0.6100
0.5116
2.778
0.5100
2.288
1.788
0.6108
5.620
1.184
3.382
5.040
0.696
2.286
2.277
0.596
1.778
2.846
4.558
2.286
5.033
2.360
2.860
1.781
1.678
1.188
2.878
2.278
3.940
2.869
5.010
1.188
0.592
1.185
2.878
1.184
1.186
2.360
4.450
1.777
2.260
2.273
0.682
2.868
0.685
1.678
0.684
2.856
0.580
2.280
2.869
0.582
0.585
0.582
0.585
1.182
1.772
1.778
1.277
5.032
0.578
3.432
0.673
2.256
4.544
4.444
0.677
1.160
2.860
1.678
0.673
5.54
0.677
0.677
3.949
0.577
1.126
6.633
5.533
1.760
1.168
7.216
0.573
0.678
7.86
1.174
2.260
2.862
0.578
8.910
3.940
5.033
2.846
1.160
2.246
3.940
0.666
2.368
0.666
0.568
5.633
5.044
1.669
0.637
1.260
1.160
1.160
2.256
1.160
2.256
1.260
0.566
3.364
3.932
1.760
0.670
1.764
2.846
1.169
2.749
3.94
2.240
7.26
2.358
6.124
0.660
0.560
0.660
2.360
0.568
3.333
2.244
2.342
1.754
8.016
1.168
5.020
2.258
1.644
4.533
0.558
2.224
0.669
2.233
0.666
5.032
3.432
2.849
5.644
6.69

Compared With Other Events

Station records per event
Station records in Heat wave in United States, 25 May to 20 June 2019 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, 25 May to 20 June 2019 (this event)1,440 records

Every Record Set

20 of 1,440
Every record set or tied during Heat wave in United States, 25 May to 20 June 2019, in date order
DateStationRecordValueMarginYears stoodSignificance
2019-06-07SpearfishRecord high minimum temperature20.6 C (69.1 F)3.4 C (6.1 F)10848 of 100 (Notable)
2019-06-10San Francisco DwtnRecord high minimum temperature22.2 C (72.0 F)1.1 C (2.0 F)7047 of 100 (Notable)
2019-06-11San Francisco DwtnRecord high minimum temperature20.0 C (68.0 F)5.0 C (9.0 F)8268 of 100 (Major)
2019-06-11Half Moon BayRecord high maximum temperature29.4 C (84.9 F)7.2 C (13.0 F)7364 of 100 (Major)
2019-06-11Salinas APRecord high maximum temperature40.0 C (104.0 F)10.0 C (18.0 F)8262 of 100 (Major)
2019-06-11N Bend SW Oregon Rgnl APRecord high maximum temperature26.1 C (79.0 F)3.9 C (7.0 F)10557 of 100 (Notable)
2019-06-11KentfieldRecord high minimum temperature16.7 C (62.1 F)2.3 C (4.1 F)10049 of 100 (Notable)
2019-06-11DownievilleRecord high minimum temperature12.8 C (55.0 F)1.7 C (3.1 F)10045 of 100 (Notable)
2019-06-11Napa State HospitalRecord high maximum temperature38.9 C (102.0 F)2.8 C (5.0 F)11445 of 100 (Notable)
2019-06-12ScotiaRecord high maximum temperature33.9 C (93.0 F)9.5 C (17.1 F)6158 of 100 (Notable)
2019-06-12Salinas APRecord high minimum temperature16.7 C (62.1 F)2.8 C (5.0 F)8449 of 100 (Notable)
2019-06-12Napa State HospitalRecord high minimum temperature21.1 C (70.0 F)2.2 C (4.0 F)10148 of 100 (Notable)
2019-06-12KentfieldRecord high maximum temperature37.8 C (100.0 F)3.4 C (6.1 F)11446 of 100 (Notable)
2019-06-12Turlock #2Record high minimum temperature23.9 C (75.0 F)2.8 C (5.0 F)12046 of 100 (Notable)
2019-06-12Port Orford #2Record high maximum temperature28.9 C (84.0 F)7.2 C (13.0 F)4446 of 100 (Notable)
2019-06-12BlaineRecord high minimum temperature15.0 C (59.0 F)1.7 C (3.1 F)10646 of 100 (Notable)
2019-06-12Ft Bragg 5 NRecord high minimum temperature15.0 C (59.0 F)2.2 C (4.0 F)8245 of 100 (Notable)
2019-06-13Cascade LocksRecord high maximum temperature35.0 C (95.0 F)3.9 C (7.0 F)10148 of 100 (Notable)
2019-06-13Corvallis State UNIVRecord high maximum temperature36.7 C (98.1 F)3.9 C (7.0 F)10248 of 100 (Notable)
2019-06-14Estacada 2 SERecord high maximum temperature37.8 C (100.0 F)3.4 C (6.1 F)10446 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 1,440 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.