Answer the following questions about superlatives of the U.S. state of Delaware.
For the river, name the longest river that flows through or along the border of Delaware by total length of the river, not just its length in Delaware.
For the island, name the largest island with territory in Delaware by total area of the island, not just its area in Delaware.
For temperature records, name either the temperature in degrees Fahrenheit or the location where that temperature was recorded.