Hiking in Iowa is such a great thing to do. At Floyd River Trail through the summertime highs are in the 80's. During the dark hours of summer temperatures drop down into the 60's. The cold days of the wintertime come with highs in the 20's with temperatures at Floyd River Trail dipping down into the 0's through winter nights. Floyd River Trail gets a typical amount of annual rain. The wettest month of the year is frequently June, that's the one that rains the most, and January is the month with the least moisture.