1 The Juneau Public Library, located at 292 Marine Way adjacent to the Cruise Ship Docks, offers free Wi-Fi internet access. 2  The library is open from 11:00 am to 8:00 pm Monday through Thursday, and from noon to 5:00 pm on Friday through Sunday.epending on the location in the city and borough, average annual rainfall ranges from 55 inches to over 90 inches, and the average annual snowfall at Juneau International Airport is 93 inches. June and July are the driest months, with an average of 16 days of rain.