We'll be there the same time too! yeah!
We were also there last year in the 1st week in March. We live in TX so our idea of hot is skewed. Capris and t-shirt for the ladies, t-shirts and shorts for my boys. Sweaters required most mornings and evenings esp. for the boat ride across the lake. One day did not warm up and it was quite cold and we ended up forking out for sweaters at MK - ouch! Be prepared for rain - we had some torrential downpours 2 nights running, and our shoes got soaked. Glad I packed 2 pairs of 'walking' shoes for everyone (even DH fessed up he was glad - he of only 3 pairs of shoes full stop, sorry, you say period).
Becky