Midwinter
Nobles and monarchs greet the halfway point of winter with a feast they call the High Festival of Winter. Traditionally it is the preferred day to make or renew alliances. For common folk, this day represents the halfway point of winter, which they call the Deadwinter Day, and is not favored by them.
Greengrass
The official beginning of Spring is a day of peace and rejoicing. Even if snow still covers the ground, clerics, nobles, and wealthy folk make a point of bringing out flowers grown in special rooms within temples and castles. They distribute the flowers among the people, who wear them or cast them upon the ground as bright offerings to the deities who summon the Summer.
Midsummer
Midsummer night is a time of feasting and music and love. It is a common time for meeting neighbors and having gatherings, and a popular day for weddings. Good weather is expected and bad weather is taken as an omen of ill fortune ahead.
Highharvestide
This holiday of feasting to celebrate the autumn harvest also marks a time of journeys. Traditionally, travelers leave this day, after feasting and before rain freezes into snow.
The Feast of the Moon
The Feast of the Moon celebrates ancestors and the honored dead. Stories of ancestor's exploits mix with the legends of deities until it's hard to tell one from the other.
Shieldmeet
Once every four years, another day is added to the year (in the manner of February 29 in the Gregorian calendar). This day is part of no month and follows Midsummer Night. This very special day is a day of open council between nobles and people, a day for making and renewing pacts, oaths, and agreements. It is also a day for tournaments, tests, and trials for those wishing to advance in fame (or infamy).