Year-To-Date Average Sea Ice Volume

2018 sea ice volume is still 5th lowest on record, and will likely stay there for the rest of the calendar year.

Q: Where’s the data source for this plot?
A: Here:
Q: How can anyone make a year-to-date average graph?
A: Easy. Use a computer. Add all the ice for every day so far this year, divide by the number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in 2018 compared to other years.