- The University of California Los Angeles set its all-time high-temperature of 111 degrees on July 6, along with several other locations in Southern California.
- Denver tied its all-time high-temperature record of 105 degrees on June 28.
- Mount Washington, N.H., tied its all-time warmest low temperature of 60 degrees on July 2.
- Burlington, Vt., set its all-time warmest low temperature ever recorded of 80 degrees on July 2.
- Montreal recorded its highest temperature in recorded history, dating back 147 years, of 97.9 degrees (36.6 Celsius) on July 2. The city also posted its most extreme midnight combination of heat and humidity.
- Ottawa posted its most extreme combination of heat and humidity on July 1.
The dome of high pressure set to develop this weekend over the eastern US is IMPRESSIVE. Current foretasted strength would make this the strongest ridge of high pressure on record for this time of year over the last 30 years. pic.twitter.com/A5bTh5CvOV— Greg Porter (@NEWeatherRants) June 28, 2018
- In Scotland, Glasgow had its hottest day on record, hitting 89.4 degrees (31.9 Celsius). Previously, it was reported that Scotland set its hottest temperature on record of 91.8 degrees (33.2 Celsius) on June 28 in Motherwell, about 12 miles southeast of Glasgow. However, upon further evaluation, the U.K. Met Office determined the record was invalid due to an artificial heating source near the temperature sensor.
- In Ireland, on June 28, Shannon hit 89.6 degrees (32 Celsius), its all-time record.
- In Northern Ireland,
- Tbilisi, Georgia: On July 4, the capital city soared to 104.9 degrees (40.5 Celsius), its all-time record.
- Yerevan, Armenia: On July 2, the capital city soared to 107.6 degrees (42 Celsius), a record high for July and tying its record for any month.
- Several locations in southern Russia topped or matched their warmest June temperatures on record on the 28th.
- In April, Pakistan posted the hottest temperature ever observed on Earth during the month of 122.4 degrees (50.2 Celsius).
- Dallas had never hit 90 degrees in November before, but it did so three times in four days in 2017.
- In late October 2017, temperatures soared to 108 degrees in Southern California, the hottest weather on record so late in the season in the entire United States.
- On Sept. 1, 2017, San Francisco hit 106 degrees, smashing its all-time hottest temperature.
- In late July 2017, Shanghai registered its highest temperature in recorded history, 105.6 degrees (40.9 Celsius).
- In mid-July, Spain posted its highest temperature recorded when Cordoba Airport (in the south) hit 116.4 degrees (46.9 Celsius).
- In July 2017, Death Valley, Calif., endured the hottest month recorded on Earth.
- In late June 2017, Ahvaz, Iran, soared to 128.7 degrees Fahrenheit (53.7 Celsius) — that country’s all-time hottest temperature.
- In late May 2017, the western town of Turbat in Pakistan hit 128.3 degrees (53.5 Celsius), tying the all-time highest temperature in that country and the world-record temperature for May, according to Masters.