I live in NC and probably have a similar climate though you may be a little warmer.
I've run 10W30 dino year round in my 98 Tacoma 2.7 with 5K changes. First 90,000 with Kendall 10W30 and the last 40,000 with Havoline 10W30. Truck does not burn oil, at least from viewing the dipstick, and the color only changes from light to a slightly darker color by 5K. Truck sees a lot of highway miles so I've always been comfortable with 5k changes. The Toyota dealership switched out the factory fill 5W30 for their oil which was the Kendall 10W30.
Prior to this truck, I had an 89 Toyota Pickup 22RE that I ran for 146,000 miles on various 10W30 dinos with 7,500 OCI. Yeah I know, but that's what the manual said for normal use and I didn't know any better. Truck did not see the highway miles that my current truck does either. Usually burned between 1/2 to 1 quart of oil in 7,500 miles and the oil was black at the 7,500 mile mark. Sold it to a co-worker who switched it to Mobil One (with no leaks) and has put another 50,000 miles on the truck.