Festivals, seasonal events, rituals(Shintoism & Buddhism), foods in season, temperature, climate, and so on are as follows. Some of them are on the approximate date.
January
Osechi dishes 
- Date 1-3:Shogatsu holidays Hatsumode(First visit to shines and temples and make a New year’s resolition) Eating Zoni and Osechi-ryori(Special dishes)
- Second Sunday: Coming-of Age Day National holiday
- Climate: 7 rainy days 1-9℃
February
March
April
May
June
July
August
September
October
November
December