The traditional calender for the Lakota was based on the moons cycles. A year was divided into 13 moons with each moon being 28 days long. Traditionally, the Lakota calender started in spring, since spring time symbolizes the start of new life (plants, animals).
While amongst the Lakota there many different names for each new moon, below are the most commonly used names and their corresponding month in the Western calender.
Pȟeží Tȟó Wí (April) The moon of green grass
Čhaƞwápe Tȟó Wí (May) The moon of green leaves
Thíƞpsiƞla Itkáȟča Wí (June) The moon when turnips are in blossom
Čhaƞpȟá Sápa Wí (July) The moon when chokecherry’s are black
Wasútȟuƞ Wí (August) The moon of ripeness
Čhaƞwápe Ǧí Wí (September) The moon of brown leaves
Čhaƞwápe Kasná Wí (October) The moon of falling leaves
Waníyetu Wí (November) The winter moon
Tȟahé Kapšúƞ Wí (December) The moon when deer shed their antlers
Wiótheȟika Wí (January) The moon when the sun is scarce
Cȟaƞnápȟopa Wí (February) The moon of popping trees
Ištáwičhayazaƞ Wí (March) The moon of sore eyes