Solve The Puzzle

Solve this puzzle :

Here is a list showing the month and a number for each month.

☝January 71313

☝February 82382

☝March 53113

☝ April 54203

☝May 35113

☝June 46203

☝July 47113

☝ August 68313

⚡Decipher the logic and find the number for September = ? 🤔🤔

🌞Challenge is O P E N for all

Brilliant brain scratching exercise.

Answer

September=99303

Explanation

The last two digits is no. of days in reverse.

The first digit is no. of letters in the month.

The second digit is month no. 

The third digit is no of vowels.