J.O.
Hi C.!
When my son was a little over 1 1/2, he started attending daycare at the YMCA. The great thing about the program there is that they have classes ranging from Infants, Toddler 1, Toddler 2, Preschool 1, Preschool 2, and Preschool 3. Toddler 2 is for children up to the age of 2.9, after which they move into Preschool 1. It's a year round program and you can have her in "school" from as early as 6am up until 5:30 or 6:00 at night. My son was usually there from about 10am-4pm. They provide snacks, and lunch, they have naptime, storytime, an indoor gym, but most importantly, the day is filled with learning activities and your daughter would get the chance to be around other kids her age! Your daughter would be able to move through the classes as she gets older and when it's time for kindgerten, I believe they also offer assistance in finding an appropriate school.
Good luck!