Although the weather in Texas might be more forgiving than in other parts of the country, it is just a reality of the world that sooner or later anything you ship is going to be exposed to the elements. That means, whatever center in Texas that you do business from, you are going to need either a local courier service or shipping and transportation company that is proficient and responsible when it comes to taking steps to protect your shipments from receiving any rain damage. You need your courier company to be experts at packing shipments so that they aren't going to sustain any rain damage, and also need them to find ways to ensure that they handle packages correctly when it's raining out so they don't become water damaged. Selecting a reputable courier company will help to insure that your shipment is taken seriously and that precautions are taken for adverse weather conditions.
The best shipping and transportation or courier service is going to be a company that really understands just how important it is that goods are protected from water damage. Many goods that are shipped can be completely destroyed if they get wet, especially documents of any kind, and working with a courier company that understands why this is essential to your business is going to provide much better service in the long run than one that simply goes through the motions of protecting your goods from the rain. Anytime you're contracting out a support service like a delivery company, you want to find providers who can empathize with the point of view from your business, as they will likely provide the best service over the long term.
An important balance for any courier service in a small town or large, metropolitan area to find in their operations is the one between the need for attention to detail, and the attention to speed. For example, a courier company that spends hours ensuring that your deliveries are properly sealed so that they are protected from rain damage but then delivery your packages late are not going to be good for business, but neither is a company that gets your delivery there an hour early but soaking wet. When you can find a courier company that can executes precision packing quickly without sacrificing the quality of protection your goods are afforded from the weather, you will have found the courier company that you should form a long term relationship with.