Best placed in February. It sits well north on the sky and is comfortably placed for northern hemisphere observers.
Corona Borealis is centred near right ascension 15.9 hours, declination +32°. It sits well north on the sky and is comfortably placed for northern hemisphere observers.
It reaches its highest point in the sky around local midnight in February, which is when it is easiest to pick out. Earlier in the year it rises before dawn; later, it is already setting in the evening.
SkyRef draws Corona Borealis in its real position for wherever you are, right now, along with the other 88 IAU figures.