Why am I constantly getting a sore throat in the summer?

Has anyone else dealt with this during the summers?

It seems like this is the sickest time of year for me. I’m trying to figure out how to change by behavior/environment to minimize and avoid constantly getting sick.

I seem to catch a strep throat infection every month during the summer. Is this from going to the humid air outside to dry AC air inside throughout the day? Is my apartment simply too dry? Should I use the AC less? I’ve never had this problem before moving here and it seems to be a summer issue. Would love to hear some tips.