Changing weather

Its already May but it is feel like the cold weather won't go away. Yesterday I attended a hawaiian party. I wore a tube dress thinking that I won't get cold at night. Just in case, I bought a coat with me. Indeed I was right, weather suddenly dropped and the need to wore something more was a must. Some of the people at the party was just feeling ok but as for me, it is very unusual for me for the month of May. I think all over the country experience different weather phenomena. I hope we can do something about this so we don't get so much problems in the future.