Death Valley, California is known for being a land of extremes, including its climate. Temperatures here normally reach or exceed 100 degrees Fahrenheit from mid-May until early October. On July 10, 1913, a temperature of 134 degrees Fahrenheit was recorded here which stands as the hottest air temperature ever recorded on a properly sighted and maintained thermometer anywhere in the world.
During July 1913, Death Valley endured an intense stretch of hot weather from the 5th through the 14th when the high temperature reached 125 degrees Fahrenheit or greater every day. This 10 day consecutive stretch ranks as the longest such period on record here. The hottest days were from the 9th through the 13th when the high reached at least 129 degrees Fahrenheit. The most sweltering day was on July 10th when the temperature spiked to 134 degrees Fahrenheit. Although Death Valley was known for being an extremely hot place, this reading helped to solidify this reputation.
On September 13, 1922 a temperature of 136 degrees Fahrenheit was recorded at El Azizia, Libya. This was eventually certified by the World Meteorological Organization as the hottest air temperature ever recorded on Earth. However, evidence about the 136 degree reading suggested that it was invalid. On September 12, 2012 the World Meteorological Organization officially re-certified the 134 degree reading at Death Valley as the all-time highest air temperature recorded on the planet.
For more information on this record high temperature, as well as information on the ongoing heat wave in the Southwest, please visit the Las Vegas NWS office page at www.wrh.noaa.gov/vef/deathvalley/
Closer to home, it has been a seasonable summer thus far in northeast Wisconsin. Green Bay has yet to hit 90 degrees this year (which compares to seeing 90 degrees or more 9 times already by this time last year). The highest temperature every recorded in Green Bay was 104 degrees on July 13, 1936, with Wausau also setting their record high temperature that day at 107. However, the highest temperature every officially reached in northeast Wisconsin was 108 degrees, in Rhinelander on the same day (July 13, 1936).