Since the server is the one in charge of determining gameplay (where a zombie spawns, whether it's day or night, whether a plant grows, etc), changing/tweaking the season settings on the server should change how players connecting to that server experience the world without also requiring manual updates to client-side config files.

This has been done in the 1.18 version which will be released soon.

That would be great, and also solve the mid-summer snowstorm problems in my server.