Commute Times Data

Hi, I am considering moving to one of the Houston suburbs and am wondering how long my commute time to work will be on average. To visualize this, I would like to use historical data to see a 7 am departure time from 4 different locations and what the estimated commute time would be throughout the past 3 years. Once I have the data, I would plot it on a graph then do the same for 8 am departure time, 4 pm and 5 pm. Does anyone know if this type of dataset is available anywhere? My google searches do not show anything of value. Of course, the alternative is for me to start the dataset by typing in the locations at 7 am, 8 am, etc.