"Unprecedented" June Heat On Four Continents

Unprecedented June heat scorched portions of four continents during the past week, and many all-time heat records are likely to fall across multiple continents this July as the peak heat of summer arrives for what has been the hottest year in recorded human history. Already on July 1, in Wimbledon, England--site of the classic Wimbledon tennis tournament--players are enduring the city's hottest day in tournament history. The mercury hit 96.3°F (35.7°C) at Kew Gardens, the nearest recording site, topping the previous record of 94.3°F (34.6°C) on June 26, 1976. London's Heathrow Airport has risen to 98.1°F (36.7°C) so far on July 1. This is not only a new all-time July record at that location, but also a July heat record for the UK, topping the previous record of 97.7°F (36.5°C) in Wisley on July 19, 2006.

We've already seen two of the planet's top ten deadliest heat waves in history over the past two months; the Pakistani government announced on Wednesday that the death toll from the brutal June heat wave in Pakistan's largest city, Karachi, had hit 1,250. According to statistics from EM-DAT, the International Disaster Database, this makes the 2015 heat wave in Pakistan the 8th deadliest in world history. The heat wave that hit India in May, claiming approximately 2,500 lives, ranks as the 5th deadliest:

Death Tolls From the 10 Deadliest Heat Waves in World History
1) Europe, 2003: 71,310
2) Russia, 2010: 55,736
3) Europe, 2006: 3,418
4) India, 1998: 2,541
5) India, 2015: 2,500
6) U.S. and Canada, 1936: 1,693
7) U.S., 1980: 1,260
8) Pakistan, 2015: 1,250
9) India, 2003: 1,210
10) India, 2002: 1,030
10) Greece and Turkey, 1987: 1,030

North America - A searing heat wave unprecedented for June scorched the Northwest U.S. and Western Canada last weekend, sending temperatures soaring to their highest June levels in recorded history for portions of Washington, Idaho, Montana, and British Columbia. Both Idaho and Washington set all-time high temperature records for the month of June on Sunday. According to wunderground's weather historian, Christopher C. Burt, the 113°F measured in Walla Walla, Washington beat that state's previous June record of 112°F, set at John Day Dam on June 18, 1961. In addition, the 111°F reading at Lewiston, Idaho was that state's hottest June temperature on record. An automated station at Pittsburg Landing, Idaho hit 116°F, but that reading will have to be verified before being considered official. A few stations had their hottest temperature for any day in recorded history on Sunday, June 28:

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