I'm pretty sure it rains a lot more in Oregon. Here in Maine we only get rain a couple times a month, not that much. However, I've heard that in Oregon it's raining more days than it isn't, or at least it feels that way.
3,191 mi - about 1 day 23 hours
It is 3,218 road miles according to Google Maps.
2,534.24 miles (4,078.45 kilometres)
4,078.45 kilometres (2,534.24 miles)
Portland, Oregon, is further north than Portland, Maine.