A Severe Thunderstorm Warning was issued Tuesday, July 31, 2012 at about 2:10 a.m. The thunderstorm produced moderate lightning, gusty winds and pea-size hail in Arlington Heights.
Brilliant lightning was visible in the north as storms approached from Wisconsin, but the storm weakened as it approached Arlington Heights and the northwest suburbs. Hail the size of tennis balls hit Green Bay earlier on Monday, July 30, 2012.
So far this summer has been the warmest summer since 1921 with an average temperature of 77.5°F.
Top 10 hottest Julys as recorded at Midway Airport:
1 2012 82.6
2 1955 81.3
3 1999 81.3
4 2011 80.4
5 1995 79.9
6 2002 79.6
7 1988 79.1
8 1936 78.8
9 2010 78.6
10 1983 78.6
The following temperature records were established during July 2012:
July 4, 2012 high of 102°F broke the record of 100 set in 1990°F
July 4, 2012 low of 81°F degrees tied record high minimum in 1990°F
July 5, 2012 high of 103°F broke the record of 98°F in 1988
July 6, 2012 high of 105°F broke the record of 98°F in 1988
July 6, 2012 low of 83°F broke the record high minimum of 80°F in 1977
July 17, 2012 high of 100°F tied the record of 100°F in 1942
July 17, 2012 low of 80°F broke the record high minimum of 77°F in 1997
July 23, 2012 low of 81°F broke the record high minimum of 78°F in 1965
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