MarketplaceHair Growth Per MonthPosted on February 10, 2010. What is the average monthly hair growth in women? I want my hair to 4 inches more in November or December and was curious to know how much hair grows per month. Easy 10 points. it grows by 1 inch each month 0.5 inch or 1.25 cm 0.5 inches. you should try Pantene beautiful lengths. not sure, but to increase growth when its ur hair wat and right sides of the shower braid it often. I started to braid my hair after the shower this summer and in the months to two or three my hair is nearly 2 inches taller and my hair usually grows slowly CommentsThere are no comments.Leave a Comment | Popular Articles External Links |