Thanks for writing the panel Paola. The average low temperature for February is 51 degrees, and the average high is 74. Of course, these are averages, but you can expect cooler mornings and evenings. Compared to February here in Canada, I would not think these temperatures are cold, however, they are not as hot as Florida temperatures in the spring and summer months. Dress in layers and you'll be fine, enabling you to be warm in the early and end of days, and cooler while the sun is shining.
Blizzard Beach will be under refurbishment from January 10 to March 20, but
Typhoon Lagoon water park will be open. Be sure to try Crush 'n' Gusher, the rollercoaster-style water slide.
Have a magical vacation Paola!