About an hour southeast of Dallas, 40 minutes from Corsicana and Athens...hour and 20 minutes or so from Tyler...Not a bad cross section...
Seven Points is a small lake community, so I'd assume that most people have service-related businesses that are lake related. Cedar Creek Lake, last time I was out that way, was a very nice, popular lake. Nearby Richland-Chambers Creek Res. and Lake Athens take away some of the activity though. There's a couple of decent golf courses (with good rates) around the area from what I hear. If you don't have a lake-related business then you're probably driving to Athens, Corsicana, or Dallas for work...Athens (11k) and Corsicana (24k) are smaller cities and thus will have more blue collar than white collar jobs there. I guess Tyler is a possibility as well. There used to be a great little place for fried catfish called 'Catfish Corner' in the Seven Points area...at one time it was a very popular (and good) place. I grew up in Corsicana and my cousin had a place out on the lake near Seven Points at one time. A friend of my dad's used to race at a small drag strip there, which I assuming is long since gone. So I used to be very familiar with the area. I haven't been there in YEARS, so hopefully someone can post some current info. I can't tell you what the area's like now but I suspect it hasn't changed 'too much' over the years.
To your main question: I know this year, that area is getting a lot more rain recently than they're used to at this time of year. And like Shoo stated, that mostly comes in larger amounts at certain times of the year, as opposed to drizzly year round. Rainiest part of the year, I'd figure would be spring, where maybe half that total would come up and the driest would be summer, when you wouldn't see near as many rainy days as you do the rest of the year. This year is an exception with the summer floods though.
I personally love the Cedar Creek area and would love to live on the lake somewhere (close to family) and work in Dallas. But my specialty is stronger out on the east coast.
Someone please correct me if I am wrong. I am by no means an expert.