We went in Feb 2015 (I believe it was around the 10th, not Pres or Vday weekend, my daughters 3rd birthday was the 15th and it was about a week before that) and there were a ton of closures!
Pooh
Splash Mt
Canoes
All of Critter Country (shops, restaurants)
Peter Pan
Matterhorn
Railroad
Castle under a tarp, not only unattractive, but you couldn’t walk through it to get to Fantasyland, announced about two weeks beforehand
Soarin
Grizzly
All of the shops and restaurants in that area, walled off between Grand Cal and front hub so you had to walk around
Redwood Creek
Flying Tires (now Luigi’s dancing cars)
World of Color
Ariel’s Grotto (now Lamplight Lounge)
Lagoon was drained
I’m not going to lie, so many closures made it feel crowded. I specifically remember a 45 minute wait for Jungle Cruise at 10:30AM on a Tuesday. But, we still had a fabulous time and many memories were made. But I dont blame anyone for changing their plans. We are going with my daughters dance group, but as a family we decided June isn’t any more crowded and everything is open!