Atenolol and chlorthalidone combination is used to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly.
San Marcos Average Weather. 1  The highest monthly average temperature in San Marcos for August is 70 degrees. 2  The lowest monthly average temperature in San Marcos for January is 55 degrees. 3  The most monthly precipitation in San Marcos occurs in January with 2.3 inches.  The air quality index in San Marcos is 22% worse than the national average.
Driving distance from Austin, TX to San Marcos, TX. The total driving distance from Austin, TX to San Marcos, TX is 31 miles or 50 kilometers. Your trip begins in Austin, Texas. It ends in San Marcos, Texas. If you are planning a road trip, you might also want to calculate the total driving time from Austin, TX to San Marcos, TX so you can see when you'll arrive at your destination.