We will likely go in March. But, we usually go earlier in the month to avoid spring break crowds. We will probably stay at the candy cane inn. It fits our needs and budget very nicely.
You'll want to plan on cool weather in the morning and evenings. Maybe even a little rain. The crowds are pretty light early in the month, but get heavier near the end of the month, as spring break starts.
ah snoopygirl you will be there in the heart of spring break so my word of advise...book that hotel asap...this past march we went and as of end of january all the dlr hotels were booked solid..looked through, AAA, costco, WDTC, calling directly, getawaytoday.com, and everything was booked and we went a week earlier than you are...it was really packed the whole time...even up in the night when I thought most people would take their kids back to hotel it didnt happen...kids were there till closing and they were open till 11 or 12 every night