Can we use the precipitate date columns as a feature in this challenge
Yes you may.
Precipitations are the only features that differ in the two years. Others are the same for 2015 and 2019. To that extent, precipitation is important.
Ok! but what i meant is that can we turn the column headers to rows and use them for predictions
I doubt that would be a good idea. When you do that, what happens to the other features that were provided?
Those features will still be intact but will have additional columns with respect to date interval