Help!Does this make me have seasonal depression?

well, i already have severe clinical depression, but the beginning of the month i felt a little happier because the buds were starting to go on the trees and there were really nice days where i would just sit out on my deck and listen to nature, and it calmed me and made me happier. Then yesterday and today the temperature dropped alot and its really cold, and then i woke up this morning and saw snow flurries, and i started crying hysterically saying, "its not suppose to snow in april" and i cried and had a nervous breakdown for 10 minutes, does this mean i also have seasonal depression? my friend really thinks i do, because she sees how i am always a little happier in warmer weather and leaves on the trees etc.