Sunnah is the ways that Prophet Mohammad lived and spoke. The Sunnah of Ramadan is the way Prophet Mohammad performed fasting and prayers.
Ramadan comes in the 9th month of the Islamic calendar after Sha'ban and before Shawwal. It is a month that all Muslims long for and pray that the life be extended to see a successful Ramadan. It is a month dearer to most Muslims than anything on earth. Sadly to say many Muslims have strayed away from following the Sunnah and have leaned towards culture.