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 Diego, California, is known for its near-perfect weather. The average daily temperature is 70.5 degrees F, according to the San Diego Convention and Visitors Bureau, and seasonal fluctuations are moderate.isitors to San Diego can almost always count on solitary beach walks in December, January and February. The crowds thin out significantly, yet the weather remains pleasant -- and the sun almost always shines.