A decade of observations blended into one year, read at the chosen time of day, so a date says what it is usually like rather than forecasting one. Rainfall is cumulative over each ten-day section.
In a typical year, Yakeshi swings from about -22°C in its coolest month to 24°C at the height of summer, averaging 3.0°C. Rain runs heaviest around July and thins out near May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.