I have been a freelance community theatre director for almost 20 years now. With few exceptions, community theatres rehearse non-musical productions for 4-5 weeks and musicals for 6-8 weeks rehearsing 4 nights a week. I have rehearsed a musical in only 5 weeks rehearsing 5 nights a week, but that is a rarity anymore due to people's job and family commitments. There are a few community theatres that will rehearse once a week for 3 or 4 months, but that is also highly unusual.
The average community theatre production run is 6 performances (Fri - Sun for two weekends). The shortest run I've ever directed was 3 performances over one weekend and the longest was 15 performances over 4 weekends (Thurs performances and a couple of Wed performances). Both are unusual.
Most community theatre performers, directors, choregraphers, designers, etc. are very serious about what they do. They approach it with the same intensity that most hobbyists approach other hobbies with, sometimes to obsession, and many are as talented, or more talented, than their full-time professional counterparts. The majority of directors, choreographers, music directors and designers that I have worked with have college degrees in theatre and have day-jobs in theatre or theatre-related industries (Art, TV, Film, Drama Education, etc.). More than half the performers I've worked with have at least some professional training in acting and half of those are preparing for a professional career in acting.
I hope you take these things into consideration when you are writing about your community theatre. Community theatres are by no means amateurish as the Simon Cowell's of the world would like to continue to believe. Most community theatres have at least a part-time professional staff or at the very least a professional theatre practitioner or educator on their board of directors. They all strive for excellence in what they do and most achieve it.