Hmm, well Buddha's Birthday is in April, but that's a while away.
Sangha Day is celebrated in some countries around late March I think. Mainly I only observe Buddha's Birthday and Bodhi Day in December (celebrating the day the Buddha became enlightened under a bodhi tree).
Salmenella
Well Parentalia, Feralia, and Carista just ended. The dis Februalia and then the following day is the monthly Kalandis.
Next month is the Festival of Bacchus (weekend of the 16th) and Quinquatrus for Minerva (19th to 23rd)
Wow, that's a lot of holidays!