Carpet python help?

[kfcluverzunite]

its been about a month and a half of my 2015 male coastal refusing food, where as before he had a very enthusiastic feeding response and would eat every time he was offered food. the temps range from 85-90f and humidity from 50-60%. He seems very interested in his food still but will not take it. do you guys think its due to the time of year or something else? Thanks