July Weather Extremes

Many Records Have Been Set During This Month

While July is not typically the hottest month of the year, it has collected several of the warmest records set on the planet. In fact, the hottest day ever recorded was in July. However, this is also the month with cold temperature records and additional extremes. What makes this data so interesting is that a number of them were set in 2017. Here is a look at those extremes.


High Temperatures

The hottest day ever recorded on Earth was on July 10, 1913. That was when the temperature went up to an unprecedented 56.7 C (134.1 F) at the Furnace Creek Ranch in Death Valley, California. Although that record has been disputed repeatedly, it still stands as the hottest ever temperature recorded in the modern day. The next warmest readings from July include:


55 C/131 F                  Kebili, Tunisia                                                               July 7, 1931

54 C/129.2 F               Mitribah, Kuwait                                                         July 21, 2016

53.9 C/129 F               Basra, Iraq                                                                    July 22, 2016

52.1 C/125.8 F            Al Jazeera Border Gate, United Arab Emirates    July 2002

52.0 C/125.6 F            Mexicali Area, Mexico                                               July 28, 1995


The warmest day ever recorded in Canada was on July 5, 1937, when the mercury reached 45.0 C/113.0 F in Yellow Grass, Saskatchewan and Midale, Saskatchewan.


Low Temperatures

The coldest day recorded in July was on the 21st back in 1983. That was when the temperature dipped down to an extremely frosty -89.2 C/-128.6 F at Vostok Station, Antarctica. The second coldest day was in July 2005 at Dome A with a recorded temperature of -82.5 C/-116.5 F. Dome Argus happens to be the highest location in Antarctica.


Additional Highs Recorded

The highest surface temperature recorded was on July 15, 1972. It was in Death Valley, California. The reading was 93.9 C/201.0 F.

Death Valley, California also holds the record for the highest average monthly temperature – recorded in July 2017. The mark was 41.9 C/107.4 F.

The highest July dew point temperature was 35 C/95 F when was reached at 3:00 PM on July 8, 2003, in Dhahran, Saudi Arabia.


Additional Records

The coldest summer day recorded in the Northern Hemisphere was on July 4, 2017, where a temperature of -33 C/-27.4 F was documented at Summit Camp, Greenland.

As for storm activity, the most unusual record from July was on the 23rd in 2010. That was when the largest diameter hailstone fell. It was 20 cm/8.0 inches in diameter and had a circumference of 47.3 cm/18.625 inches. It was found in Vivian, South Dakota.


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