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.
San Marcos is home to Texas State University and the Aquarena Center. In 2010, San Marcos was listed in Business Week's fourth annual survey of the Best Places to Raise your Kids. In 2013 and 2014, the United States Census Bureau named San Marcos the fastest-growing city in the United States.