Alright, enough of spending all this time inside a building, time to get out, and Rock Run Trail in Centre County, Pennsylvania is a perfect place for getting out. High temperatures at Rock Run Trail all through the days of summer are in the 80's, and all through summer nights temperatures are in the 70's. Daytime highs all through the wintertime are in the 80's; through the dark hours in the wintertime at Rock Run Trail temperatures fall to the 70's. Rock Run Trail gets a good deal of water. September is the month that gets the most rain; May is when it's the driest.