I appreciate the information everyone is providing, it sounds like I should be okay to start around mid February. I know to take precautions on having warm enough gear. I was concerned about it getting to cold (think temperatures in the low teens to single digits at night for many days), but it sounds like the temp situation is going to be okay. I was just on the superior hiking trail a couple of days ago, and 40-50 for daytime temp with low 30s at night was fine for me. Hopefully not a lot of snow on the ground down there at that time. Thank you again for all the info.