I thought we had a coastal that looked like this in late January 2017 with a very similar setup that did indeed end up being all rain. I may have the year wrong though.
Monday January 23, 2017.
It was the one year anniversary of the 2016 blizzard and there was moderate to heavy rain with fairly strong winds through the first half of the day. Far NW areas changed over to frozen (mainly sleet iirc) and got some minor accumulations.
And also, yeah, I remember a NWS disco out of ME or New England with very "irritated sounding" wording about it being late January that year yet not being able to get much in the way of any snow.
ETA: Could have sworn I was in banter... sorry about that.