What is the next in the series - April, August, December, February, ?

Question

If
January 71313,
February 82382,
March 53113,
April 54203,
May 35113,
June 46203,
July 47113 and
August 68313
then
December =?

Answer 1

January -alphabetically

Answer 2

April (5 letters), August (6 letters), December (8 letters), February (8 letters), ?

Ans: September (9 letters)

Note: You should have put January (7 letters) instead of December (8 letters) in the sequence.
- Ulhas Shinde