seasonally

Occurring every season.

We get bobolinks here seasonally.

Although the 1-D RCM can predict only horizontally, diurnally, and seasonally averaged conditions, it is capable of estimating the first-order climate responses of the atmosphere, which is our intention in this study.

Occurring only in season.

Cherries are available here seasonally.

Occurring within the relevant season; appropriately to the current season.

It has been seasonally warm here lately.