I assume it's light. I work that holiday and take the day in February. Most companies (besides government) work the day, letting employees decide if they want to come in or not. People are broke from Christmas, plus it's the coldest time of the year in Florida.
I visit in February when the high reaches 75 in the afternoon and do the water rides. I wear two t-shirts and change after getting soaked. This is my favorite time to come. Park is empty, yet all rides are working.