DULUTH, MN (KDAL) - The summer months of June, July and August were warmer and drier than the average in Duluth. The average temperature for the summer of 2013 was 66.1 compared to the normal 63.4 degrees. It was the 8th warmest summer on record. Meanwhile, precipitation during the same three months totaled 8.25 inches which was 3.5 inches below the normal for the season. This summer was the 30th driest summer on record.