IEM Daily Feature
Thursday, 09 July 2015

First vs Second Half of Summer

Posted: 09 Jul 2015 05:42 AM

The half way point of meteorological summer is nearly at hand, so it is appropriate to compare how average temperatures compare between the first and second half of summer. The featured chart does just that by comparing the trailing 45 day period to 15 July with the following 45 day period for Des Moines. The average high this year will come in well below average, so one may wonder if the second half of the summer has a chance to be above average. Quadrant II would be the sector for this combination and the frequency is just above 11%.

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