The best time to come to Phrae is from November to April but there are no months when it is really not recommeded to come here. Even during the monsoon, Phrae remains sparse compared to other provinces. The rainfalls are certainly strong but generally fairly brief. Before and after the rains, the weather is most of the time very pleasant.
We are one week away from Chinese New Year (January 25th, 2020) and despite a lot of mail and detailed information requests from various Tourist Offices in several cities, I unfortunately did not get all the details that I would have liked...