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| Station | Type | Value | Date |
|---|---|---|---|
| San Francisco Dwtn | Record high minimum temperature | 20.0 C (68.0 F) | 2019-06-11 |
| Half Moon Bay | Record high maximum temperature | 29.4 C (84.9 F) | 2019-06-11 |
| Salinas AP | Record high maximum temperature | 40.0 C (104.0 F) | 2019-06-11 |
| Scotia | Record high maximum temperature | 33.9 C (93.0 F) | 2019-06-12 |
| N Bend SW Oregon Rgnl AP | Record high maximum temperature | 26.1 C (79.0 F) | 2019-06-11 |
| Kentfield | Record high minimum temperature | 16.7 C (62.1 F) | 2019-06-11 |
| Spearfish | Record high minimum temperature | 20.6 C (69.1 F) | 2019-06-07 |
| Napa State Hospital | Record high minimum temperature | 21.1 C (70.0 F) | 2019-06-12 |
| Cascade Locks | Record high maximum temperature | 35.0 C (95.0 F) | 2019-06-13 |
| Corvallis State UNIV | Record high maximum temperature | 36.7 C (98.1 F) | 2019-06-13 |
| Turlock #2 | Record high minimum temperature | 23.9 C (75.0 F) | 2019-06-12 |
| Port Orford #2 | Record high maximum temperature | 28.9 C (84.0 F) | 2019-06-12 |
| Blaine | Record high minimum temperature | 15.0 C (59.0 F) | 2019-06-12 |
| Estacada 2 SE | Record high maximum temperature | 37.8 C (100.0 F) | 2019-06-14 |
| Downieville | Record high minimum temperature | 12.8 C (55.0 F) | 2019-06-11 |
| Ft Bragg 5 N | Record high minimum temperature | 15.0 C (59.0 F) | 2019-06-12 |
Records per Day
Peak day 438| Date | Records |
|---|---|
| 2019-05-25 | 1 |
| 2019-05-26 | 1 |
| 2019-05-27 | 5 |
| 2019-05-28 | 9 |
| 2019-05-29 | 4 |
| 2019-05-30 | 6 |
| 2019-05-31 | 7 |
| 2019-06-01 | 7 |
| 2019-06-02 | 15 |
| 2019-06-03 | 32 |
| 2019-06-04 | 14 |
| 2019-06-05 | 16 |
| 2019-06-06 | 14 |
| 2019-06-07 | 28 |
| 2019-06-08 | 37 |
| 2019-06-09 | 20 |
| 2019-06-10 | 91 |
| 2019-06-11 | 268 |
| 2019-06-12 | 438 |
| 2019-06-13 | 242 |
| 2019-06-14 | 54 |
| 2019-06-15 | 24 |
| 2019-06-16 | 47 |
| 2019-06-17 | 27 |
| 2019-06-18 | 20 |
| 2019-06-19 | 7 |
| 2019-06-20 | 6 |
Top Records by Margin
Margin over the record replaced| Salinas AP, 06-11 | |
|---|---|
| Scotia, 06-12 | |
| Half Moon Bay, 06-11 | |
| Port Orford #2, 06-12 | |
| San Francisco Dwtn, 06-11 | |
| N Bend SW Oregon Rgnl AP, 06-11 | |
| Cascade Locks, 06-13 | |
| Corvallis State UNIV, 06-13 | |
| Spearfish, 06-07 | |
| Kentfield, 06-12 | |
| Estacada 2 SE, 06-14 | |
| Salinas AP, 06-12 | |
| Turlock #2, 06-12 | |
| Napa State Hospital, 06-11 | |
| Kentfield, 06-11 |
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 (C) | Years the old record stood |
|---|---|
| 5.0 | 82 |
| 7.2 | 73 |
| 10.0 | 82 |
| 9.5 | 61 |
| 3.9 | 105 |
| 2.3 | 100 |
| 2.8 | 84 |
| 2.2 | 101 |
| 3.9 | 101 |
| 3.9 | 102 |
| 3.4 | 108 |
| 1.1 | 70 |
| 3.4 | 114 |
| 2.8 | 120 |
| 3.4 | 104 |
| 7.2 | 44 |
| 1.7 | 106 |
| 1.7 | 100 |
| 2.2 | 82 |
| 2.8 | 114 |
| 5.0 | 86 |
| 3.3 | 78 |
| 1.7 | 61 |
| 2.2 | 114 |
| 1.7 | 100 |
| 5.0 | 72 |
| 8.9 | 44 |
| 1.7 | 101 |
| 3.9 | 86 |
| 1.1 | 100 |
| 4.4 | 58 |
| 1.7 | 100 |
| 3.8 | 77 |
| 1.1 | 112 |
| 1.1 | 118 |
| 3.4 | 49 |
| 1.1 | 114 |
| 1.2 | 97 |
| 1.7 | 96 |
| 2.8 | 82 |
| 2.3 | 84 |
| 2.8 | 81 |
| 4.5 | 58 |
| 1.1 | 59 |
| 2.2 | 85 |
| 0.6 | 106 |
| 0.5 | 114 |
| 0.5 | 100 |
| 2.7 | 82 |
| 2.8 | 77 |
| 0.6 | 120 |
| 0.6 | 100 |
| 0.5 | 116 |
| 2.7 | 78 |
| 0.5 | 100 |
| 2.2 | 88 |
| 1.7 | 88 |
| 0.6 | 108 |
| 5.6 | 20 |
| 1.1 | 84 |
| 3.3 | 82 |
| 5.0 | 40 |
| 0.6 | 96 |
| 2.2 | 86 |
| 2.2 | 77 |
| 0.5 | 96 |
| 1.7 | 78 |
| 2.8 | 46 |
| 4.5 | 58 |
| 2.2 | 86 |
| 5.0 | 33 |
| 2.3 | 60 |
| 2.8 | 60 |
| 1.7 | 81 |
| 1.6 | 78 |
| 1.1 | 88 |
| 2.8 | 78 |
| 2.2 | 78 |
| 3.9 | 40 |
| 2.8 | 69 |
| 5.0 | 10 |
| 1.1 | 88 |
| 0.5 | 92 |
| 1.1 | 85 |
| 2.8 | 78 |
| 1.1 | 84 |
| 1.1 | 86 |
| 2.3 | 60 |
| 4.4 | 50 |
| 1.7 | 77 |
| 2.2 | 60 |
| 2.2 | 73 |
| 0.6 | 82 |
| 2.8 | 68 |
| 0.6 | 85 |
| 1.6 | 78 |
| 0.6 | 84 |
| 2.8 | 56 |
| 0.5 | 80 |
| 2.2 | 80 |
| 2.8 | 69 |
| 0.5 | 82 |
| 0.5 | 85 |
| 0.5 | 82 |
| 0.5 | 85 |
| 1.1 | 82 |
| 1.7 | 72 |
| 1.7 | 78 |
| 1.2 | 77 |
| 5.0 | 32 |
| 0.5 | 78 |
| 3.4 | 32 |
| 0.6 | 73 |
| 2.2 | 56 |
| 4.5 | 44 |
| 4.4 | 44 |
| 0.6 | 77 |
| 1.1 | 60 |
| 2.8 | 60 |
| 1.6 | 78 |
| 0.6 | 73 |
| 5.5 | 4 |
| 0.6 | 77 |
| 0.6 | 77 |
| 3.9 | 49 |
| 0.5 | 77 |
| 1.1 | 26 |
| 6.6 | 33 |
| 5.5 | 33 |
| 1.7 | 60 |
| 1.1 | 68 |
| 7.2 | 16 |
| 0.5 | 73 |
| 0.6 | 78 |
| 7.8 | 6 |
| 1.1 | 74 |
| 2.2 | 60 |
| 2.8 | 62 |
| 0.5 | 78 |
| 8.9 | 10 |
| 3.9 | 40 |
| 5.0 | 33 |
| 2.8 | 46 |
| 1.1 | 60 |
| 2.2 | 46 |
| 3.9 | 40 |
| 0.6 | 66 |
| 2.3 | 68 |
| 0.6 | 66 |
| 0.5 | 68 |
| 5.6 | 33 |
| 5.0 | 44 |
| 1.6 | 69 |
| 0.6 | 37 |
| 1.2 | 60 |
| 1.1 | 60 |
| 1.1 | 60 |
| 2.2 | 56 |
| 1.1 | 60 |
| 2.2 | 56 |
| 1.2 | 60 |
| 0.5 | 66 |
| 3.3 | 64 |
| 3.9 | 32 |
| 1.7 | 60 |
| 0.6 | 70 |
| 1.7 | 64 |
| 2.8 | 46 |
| 1.1 | 69 |
| 2.7 | 49 |
| 3.9 | 4 |
| 2.2 | 40 |
| 7.2 | 6 |
| 2.3 | 58 |
| 6.1 | 24 |
| 0.6 | 60 |
| 0.5 | 60 |
| 0.6 | 60 |
| 2.3 | 60 |
| 0.5 | 68 |
| 3.3 | 33 |
| 2.2 | 44 |
| 2.3 | 42 |
| 1.7 | 54 |
| 8.0 | 16 |
| 1.1 | 68 |
| 5.0 | 20 |
| 2.2 | 58 |
| 1.6 | 44 |
| 4.5 | 33 |
| 0.5 | 58 |
| 2.2 | 24 |
| 0.6 | 69 |
| 2.2 | 33 |
| 0.6 | 66 |
| 5.0 | 32 |
| 3.4 | 32 |
| 2.8 | 49 |
| 5.6 | 44 |
| 6.6 | 9 |
Compared With Other Events
Station records per event| Heat wave in United States and Mexico, 16 January to 14 February 2024 | |
|---|---|
| Heat wave in United States, 28 January to 24 February 2026 | |
| Heat wave in United States and Mexico, 24 May to 19 June 2020 | |
| Heat wave in United States and Mexico, 26 March to 17 April 2021 | |
| Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022 | |
| Heat wave in United States, 25 May to 20 June 2019 (this event) |
Every Record Set
20 of 1,440| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2019-06-07 | Spearfish | Record high minimum temperature | 20.6 C (69.1 F) | 3.4 C (6.1 F) | 108 | 48 of 100 (Notable) |
| 2019-06-10 | San Francisco Dwtn | Record high minimum temperature | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 70 | 47 of 100 (Notable) |
| 2019-06-11 | San Francisco Dwtn | Record high minimum temperature | 20.0 C (68.0 F) | 5.0 C (9.0 F) | 82 | 68 of 100 (Major) |
| 2019-06-11 | Half Moon Bay | Record high maximum temperature | 29.4 C (84.9 F) | 7.2 C (13.0 F) | 73 | 64 of 100 (Major) |
| 2019-06-11 | Salinas AP | Record high maximum temperature | 40.0 C (104.0 F) | 10.0 C (18.0 F) | 82 | 62 of 100 (Major) |
| 2019-06-11 | N Bend SW Oregon Rgnl AP | Record high maximum temperature | 26.1 C (79.0 F) | 3.9 C (7.0 F) | 105 | 57 of 100 (Notable) |
| 2019-06-11 | Kentfield | Record high minimum temperature | 16.7 C (62.1 F) | 2.3 C (4.1 F) | 100 | 49 of 100 (Notable) |
| 2019-06-11 | Downieville | Record high minimum temperature | 12.8 C (55.0 F) | 1.7 C (3.1 F) | 100 | 45 of 100 (Notable) |
| 2019-06-11 | Napa State Hospital | Record high maximum temperature | 38.9 C (102.0 F) | 2.8 C (5.0 F) | 114 | 45 of 100 (Notable) |
| 2019-06-12 | Scotia | Record high maximum temperature | 33.9 C (93.0 F) | 9.5 C (17.1 F) | 61 | 58 of 100 (Notable) |
| 2019-06-12 | Salinas AP | Record high minimum temperature | 16.7 C (62.1 F) | 2.8 C (5.0 F) | 84 | 49 of 100 (Notable) |
| 2019-06-12 | Napa State Hospital | Record high minimum temperature | 21.1 C (70.0 F) | 2.2 C (4.0 F) | 101 | 48 of 100 (Notable) |
| 2019-06-12 | Kentfield | Record high maximum temperature | 37.8 C (100.0 F) | 3.4 C (6.1 F) | 114 | 46 of 100 (Notable) |
| 2019-06-12 | Turlock #2 | Record high minimum temperature | 23.9 C (75.0 F) | 2.8 C (5.0 F) | 120 | 46 of 100 (Notable) |
| 2019-06-12 | Port Orford #2 | Record high maximum temperature | 28.9 C (84.0 F) | 7.2 C (13.0 F) | 44 | 46 of 100 (Notable) |
| 2019-06-12 | Blaine | Record high minimum temperature | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 106 | 46 of 100 (Notable) |
| 2019-06-12 | Ft Bragg 5 N | Record high minimum temperature | 15.0 C (59.0 F) | 2.2 C (4.0 F) | 82 | 45 of 100 (Notable) |
| 2019-06-13 | Cascade Locks | Record high maximum temperature | 35.0 C (95.0 F) | 3.9 C (7.0 F) | 101 | 48 of 100 (Notable) |
| 2019-06-13 | Corvallis State UNIV | Record high maximum temperature | 36.7 C (98.1 F) | 3.9 C (7.0 F) | 102 | 48 of 100 (Notable) |
| 2019-06-14 | Estacada 2 SE | Record high maximum temperature | 37.8 C (100.0 F) | 3.4 C (6.1 F) | 104 | 46 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.