Heat wave in United States and Mexico, 15 to 30 March 2019

Name: Heat wave in United States and Mexico, 15 to 30 March 2019
Start: 2019-03-15
End: 2019-03-30
Location: United States, Mexico

Heat wave in United States and Mexico, 15 to 30 March 2019: 706 records at 390 stations, peak on 27 March 2019. Closed.

Data as of 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Key Facts

Heat wave in United States and Mexico, 15 to 30 March 2019 set or tied 706 station records at 390 stations.
It ran from 15 March 2019 to 30 March 2019 (16 days) and its peak day was 27 March 2019.
Status: closed.
Forks 1 E set a daily record high maximum temperature of 26.1 C (79.0 F) on 20 March 2019.
The busiest day was 27 March 2019 with 129 records.
The oldest broken record in the ranked list had stood for 123 years.

Footprint

15 to 30 March 2019

The area covered by Heat wave in United States and Mexico, 15 to 30 March 2019 is outlined, with 15 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in United States and Mexico, 15 to 30 March 2019: stations that set records in the event
Station	Type	Value	Date
Forks 1 E	Record high maximum temperature	26.1 C (79.0 F)	2019-03-20
Mud Mtn Dam	Record high minimum temperature	12.8 C (55.0 F)	2019-03-20
Aberdeen	Record high maximum temperature	26.1 C (79.0 F)	2019-03-20
Kent	Record high maximum temperature	26.7 C (80.1 F)	2019-03-20
Polebridge	Record high maximum temperature	22.2 C (72.0 F)	2019-03-22
Seattle Boeing Fld	Record high maximum temperature	23.9 C (75.0 F)	2019-03-18
Olympia AP	Record high maximum temperature	25.6 C (78.1 F)	2019-03-19
Blaine	Record high maximum temperature	20.6 C (69.1 F)	2019-03-19
Centralia	Record high maximum temperature	25.6 C (78.1 F)	2019-03-20
Sequim 2 E	Record high maximum temperature	23.3 C (73.9 F)	2019-03-19
Santa Cruz	Record high minimum temperature	13.3 C (55.9 F)	2019-03-27
Clearbrook	Record high maximum temperature	25.0 C (77.0 F)	2019-03-20
Rocky Ford 2 SE	Record high minimum temperature	9.4 C (48.9 F)	2019-03-28
Kellogg	Record high maximum temperature	21.7 C (71.1 F)	2019-03-19
Merced	Record high minimum temperature	12.8 C (55.0 F)	2019-03-27

Records per Day

Peak day 129

Records set or tied each day from 15 March 2019 to 30 March 2019. The most in one day was 129 on 27 March 2019.

Records per day during Heat wave in United States and Mexico, 15 to 30 March 2019
Date	Records
2019-03-15	1
2019-03-16	2
2019-03-17	34
2019-03-18	67
2019-03-19	102
2019-03-20	103
2019-03-21	82
2019-03-22	25
2019-03-23	13
2019-03-24	3
2019-03-25	15
2019-03-26	41
2019-03-27	129
2019-03-28	73
2019-03-29	15
2019-03-30	1

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in United States and Mexico, 15 to 30 March 2019 ranked by margin
Sequim 2 E, 03-19	7.7 C (13.9 F)
Olympia AP, 03-19	6.7 C (12.1 F)
Seattle Boeing Fld, 03-18	6.1 C (11.0 F)
Forks 1 E, 03-20	5.0 C (9.0 F)
Polebridge, 03-22	2.8 C (5.0 F)
Aberdeen, 03-20	2.8 C (5.0 F)
Kent, 03-20	2.8 C (5.0 F)
Forks 1 E, 03-21	2.8 C (5.0 F)
Forks 1 E, 03-18	2.7 C (4.9 F)
Blaine, 03-19	2.3 C (4.1 F)
Mud Mtn Dam, 03-20	2.2 C (4.0 F)
Centralia, 03-20	1.7 C (3.1 F)
Forks 1 E, 03-19	1.1 C (2.0 F)
Santa Cruz, 03-27	1.1 C (2.0 F)
Aberdeen, 03-21	1.1 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

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 and Mexico, 15 to 30 March 2019
Margin (C)	Years the old record stood
5.0	104
1.1	95
2.2	76
2.8	80
2.8	104
2.8	104
6.7	68
6.1	69
2.3	90
1.7	104
2.7	90
1.1	123
1.1	104
7.7	36
1.1	123
1.1	104
0.6	77
0.6	104
0.6	108
2.8	80
1.6	90
5.6	57
0.6	104
0.5	108
1.1	90
1.6	86
0.6	93
1.1	88
2.2	80
0.6	90
5.6	58
1.7	84
1.1	84
3.4	72
0.6	51
0.5	85
2.2	72
6.1	37
1.7	80
1.1	80
4.4	50
1.7	76
0.5	80
2.8	62
3.3	25
3.4	62
2.8	41
6.1	22
3.4	58
0.5	54
2.2	58
0.5	47
5.0	32
6.7	30
1.1	65
1.1	70
3.3	58
5.5	30
2.3	58
1.7	58
2.7	50
2.2	58
2.7	50
1.7	62
2.2	65
1.1	72
2.3	56
1.7	58
2.2	58
1.7	58
1.2	50
1.6	62
3.3	46
2.8	40
1.6	58
2.7	40
0.5	61
1.1	50
3.3	32
5.0	30
5.0	30
6.6	26
3.9	32
1.1	62
1.1	62
1.7	50
1.2	62
2.3	46
1.2	58
1.7	57
6.2	28
1.6	33
1.7	58
3.4	34
2.2	48
1.1	58
1.1	48
4.5	30
5.7	28
1.6	56
0.5	58
1.1	24
4.4	37
1.1	58
3.9	33
4.4	30
6.9	28
0.5	57
1.1	48
2.2	40
2.8	32
0.5	48
3.3	20
2.8	40
0.6	58
2.3	1
0.5	56
2.3	24
2.8	0
0.5	32
0.6	56
2.3	15
2.2	40
0.6	40
1.1	37
3.3	40
2.8	22
1.2	34
2.2	32
3.4	30
5.6	30
7.3	4
1.2	44
1.1	48
0.6	52
0.6	40
1.7	40
0.6	40
0.6	48
2.2	40
1.7	29
0.5	37
2.2	32
2.2	30
5.6	20
0.5	14
3.3	22
3.3	22
0.5	48
0.6	44
1.1	40
0.5	52
0.5	40
2.2	21
0.6	40
2.2	21
1.6	40
2.8	30
3.9	26
4.9	25
6.7	4
4.5	20
1.0	20
1.7	0
0.6	30
0.5	30
1.1	44
1.1	33
0.5	40
1.1	26
1.1	28
1.6	36
1.1	32
2.2	32
3.9	21
3.9	20
4.4	12
4.5	17
0.1	24
2.8	29
1.1	40
0.6	36
1.1	40
0.6	45
1.7	37
1.1	22
1.7	30
0.2	20
0.7	14
3.3	4
1.7	30
3.4	22
0.5	32
0.6	44
0.6	44
0.5	32
0.6	40
1.7	32
0.5	40
0.5	29

Compared With Other Events

Station records per event

Station records in Heat wave in United States and Mexico, 15 to 30 March 2019 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 2024	9,869 records
Heat wave in United States, 28 January to 24 February 2026	6,528 records
Heat wave in United States and Mexico, 24 May to 19 June 2020	5,047 records
Heat wave in United States and Mexico, 26 March to 17 April 2021	3,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022	3,626 records
Heat wave in United States and Mexico, 15 to 30 March 2019 (this event)	706 records

Every Record Set

20 of 706

Every record set or tied during Heat wave in United States and Mexico, 15 to 30 March 2019, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2019-03-18	Seattle Boeing Fld	Record high maximum temperature	23.9 C (75.0 F)	6.1 C (11.0 F)	69	45 of 100 (Notable)
2019-03-18	Forks 1 E	Record high maximum temperature	24.4 C (75.9 F)	2.7 C (4.9 F)	90	44 of 100 (Notable)
2019-03-19	Forks 1 E	Record high maximum temperature	27.2 C (81.0 F)	1.1 C (2.0 F)	95	51 of 100 (Notable)
2019-03-19	Olympia AP	Record high maximum temperature	25.6 C (78.1 F)	6.7 C (12.1 F)	68	45 of 100 (Notable)
2019-03-19	Blaine	Record high maximum temperature	20.6 C (69.1 F)	2.3 C (4.1 F)	90	44 of 100 (Notable)
2019-03-19	Sequim 2 E	Record high maximum temperature	23.3 C (73.9 F)	7.7 C (13.9 F)	36	43 of 100 (Notable)
2019-03-19	Kellogg	Record high maximum temperature	21.7 C (71.1 F)	0.6 C (1.1 F)	108	41 of 100 (Notable)
2019-03-20	Forks 1 E	Record high maximum temperature	26.1 C (79.0 F)	5.0 C (9.0 F)	104	53 of 100 (Notable)
2019-03-20	Mud Mtn Dam	Record high minimum temperature	12.8 C (55.0 F)	2.2 C (4.0 F)	76	48 of 100 (Notable)
2019-03-20	Aberdeen	Record high maximum temperature	26.1 C (79.0 F)	2.8 C (5.0 F)	104	47 of 100 (Notable)
2019-03-20	Kent	Record high maximum temperature	26.7 C (80.1 F)	2.8 C (5.0 F)	104	47 of 100 (Notable)
2019-03-20	Centralia	Record high maximum temperature	25.6 C (78.1 F)	1.7 C (3.1 F)	104	44 of 100 (Notable)
2019-03-20	Clearbrook	Record high maximum temperature	25.0 C (77.0 F)	1.1 C (2.0 F)	104	42 of 100 (Notable)
2019-03-20	Mud Mtn Dam	Record high maximum temperature	23.9 C (75.0 F)	0.6 C (1.1 F)	77	42 of 100 (Notable)
2019-03-21	Aberdeen	Record high maximum temperature	26.7 C (80.1 F)	1.1 C (2.0 F)	104	43 of 100 (Notable)
2019-03-21	Forks 1 E	Record high maximum temperature	25.6 C (78.1 F)	2.8 C (5.0 F)	80	41 of 100 (Notable)
2019-03-22	Polebridge	Record high maximum temperature	22.2 C (72.0 F)	2.8 C (5.0 F)	80	47 of 100 (Notable)
2019-03-27	Santa Cruz	Record high minimum temperature	13.3 C (55.9 F)	1.1 C (2.0 F)	123	43 of 100 (Notable)
2019-03-27	Merced	Record high minimum temperature	12.8 C (55.0 F)	0.6 C (1.1 F)	104	41 of 100 (Notable)
2019-03-28	Rocky Ford 2 SE	Record high minimum temperature	9.4 C (48.9 F)	1.1 C (2.0 F)	123	42 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 706 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 2026-10-18. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.

Margin (C)	Years the old record stood
5.0	104
1.1	95
2.2	76
2.8	80
2.8	104
2.8	104
6.7	68
6.1	69
2.3	90
1.7	104
2.7	90
1.1	123
1.1	104
7.7	36
1.1	123
1.1	104
0.6	77
0.6	104
0.6	108
2.8	80
1.6	90
5.6	57
0.6	104
0.5	108
1.1	90
1.6	86
0.6	93
1.1	88
2.2	80
0.6	90
5.6	58
1.7	84
1.1	84
3.4	72
0.6	51
0.5	85
2.2	72
6.1	37
1.7	80
1.1	80
4.4	50
1.7	76
0.5	80
2.8	62
3.3	25
3.4	62
2.8	41
6.1	22
3.4	58
0.5	54
2.2	58
0.5	47
5.0	32
6.7	30
1.1	65
1.1	70
3.3	58
5.5	30
2.3	58
1.7	58
2.7	50
2.2	58
2.7	50
1.7	62
2.2	65
1.1	72
2.3	56
1.7	58
2.2	58
1.7	58
1.2	50
1.6	62
3.3	46
2.8	40
1.6	58
2.7	40
0.5	61
1.1	50
3.3	32
5.0	30
5.0	30
6.6	26
3.9	32
1.1	62
1.1	62
1.7	50
1.2	62
2.3	46
1.2	58
1.7	57
6.2	28
1.6	33
1.7	58
3.4	34
2.2	48
1.1	58
1.1	48
4.5	30
5.7	28
1.6	56
0.5	58
1.1	24
4.4	37
1.1	58
3.9	33
4.4	30
6.9	28
0.5	57
1.1	48
2.2	40
2.8	32
0.5	48
3.3	20
2.8	40
0.6	58
2.3	1
0.5	56
2.3	24
2.8	0
0.5	32
0.6	56
2.3	15
2.2	40
0.6	40
1.1	37
3.3	40
2.8	22
1.2	34
2.2	32
3.4	30
5.6	30
7.3	4
1.2	44
1.1	48
0.6	52
0.6	40
1.7	40
0.6	40
0.6	48
2.2	40
1.7	29
0.5	37
2.2	32
2.2	30
5.6	20
0.5	14
3.3	22
3.3	22
0.5	48
0.6	44
1.1	40
0.5	52
0.5	40
2.2	21
0.6	40
2.2	21
1.6	40
2.8	30
3.9	26
4.9	25
6.7	4
4.5	20
1.0	20
1.7	0
0.6	30
0.5	30
1.1	44
1.1	33
0.5	40
1.1	26
1.1	28
1.6	36
1.1	32
2.2	32
3.9	21
3.9	20
4.4	12
4.5	17
0.1	24
2.8	29
1.1	40
0.6	36
1.1	40
0.6	45
1.7	37
1.1	22
1.7	30
0.2	20
0.7	14
3.3	4
1.7	30
3.4	22
0.5	32
0.6	44
0.6	44
0.5	32
0.6	40
1.7	32
0.5	40
0.5	29

Margin (C)	Years the old record stood
5.0	104
1.1	95
2.2	76
2.8	80
2.8	104
2.8	104
6.7	68
6.1	69
2.3	90
1.7	104
2.7	90
1.1	123
1.1	104
7.7	36
1.1	123
1.1	104
0.6	77
0.6	104
0.6	108
2.8	80
1.6	90
5.6	57
0.6	104
0.5	108
1.1	90
1.6	86
0.6	93
1.1	88
2.2	80
0.6	90
5.6	58
1.7	84
1.1	84
3.4	72
0.6	51
0.5	85
2.2	72
6.1	37
1.7	80
1.1	80
4.4	50
1.7	76
0.5	80
2.8	62
3.3	25
3.4	62
2.8	41
6.1	22
3.4	58
0.5	54
2.2	58
0.5	47
5.0	32
6.7	30
1.1	65
1.1	70
3.3	58
5.5	30
2.3	58
1.7	58
2.7	50
2.2	58
2.7	50
1.7	62
2.2	65
1.1	72
2.3	56
1.7	58
2.2	58
1.7	58
1.2	50
1.6	62
3.3	46
2.8	40
1.6	58
2.7	40
0.5	61
1.1	50
3.3	32
5.0	30
5.0	30
6.6	26
3.9	32
1.1	62
1.1	62
1.7	50
1.2	62
2.3	46
1.2	58
1.7	57
6.2	28
1.6	33
1.7	58
3.4	34
2.2	48
1.1	58
1.1	48
4.5	30
5.7	28
1.6	56
0.5	58
1.1	24
4.4	37
1.1	58
3.9	33
4.4	30
6.9	28
0.5	57
1.1	48
2.2	40
2.8	32
0.5	48
3.3	20
2.8	40
0.6	58
2.3	1
0.5	56
2.3	24
2.8	0
0.5	32
0.6	56
2.3	15
2.2	40
0.6	40
1.1	37
3.3	40
2.8	22
1.2	34
2.2	32
3.4	30
5.6	30
7.3	4
1.2	44
1.1	48
0.6	52
0.6	40
1.7	40
0.6	40
0.6	48
2.2	40
1.7	29
0.5	37
2.2	32
2.2	30
5.6	20
0.5	14
3.3	22
3.3	22
0.5	48
0.6	44
1.1	40
0.5	52
0.5	40
2.2	21
0.6	40
2.2	21
1.6	40
2.8	30
3.9	26
4.9	25
6.7	4
4.5	20
1.0	20
1.7	0
0.6	30
0.5	30
1.1	44
1.1	33
0.5	40
1.1	26
1.1	28
1.6	36
1.1	32
2.2	32
3.9	21
3.9	20
4.4	12
4.5	17
0.1	24
2.8	29
1.1	40
0.6	36
1.1	40
0.6	45
1.7	37
1.1	22
1.7	30
0.2	20
0.7	14
3.3	4
1.7	30
3.4	22
0.5	32
0.6	44
0.6	44
0.5	32
0.6	40
1.7	32
0.5	40
0.5	29