The circumstances of a year (as the weather, seasons, number of days, etc.).
This year's circumstances are very unique because it hasn't even rained since November.
First planting (season of the year). (Time when the dry season is about to end in May.)
When it is the first planting season of the year, everyone works vigorously at slashing and burning their fields.
The corn from the first planting season is good to plant in the second planting season.