haha, that has been one of my points if you read my posts. yes humidity is a factor. for me i dont even have to work out when i go to a hot climate. every trip i have ever taken, whether for 1 week or 4 weeks, when hot and humid my problem goes away.
in august i was in peru. in cuzco my lips were bad because of the altitude and cold weather. they werent peeling. and all the people i was with had the same problems. it wasnt just me. then we traveled to the amazon in the north and it was 45 everyday. my problem vanished.
i live in one of the coldest places and have long dreadful winters. canada. i used to have to wear a scarf and all over my lips. last winter wasnt bad because of the workout routines. i didnt ever cover my lips cause they were normal. this year it is starting to get cold as hell and no problems. they are essentially normal. i do think however that if i stopped the workout in the winter they would regress.