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.
Find the best month to visit San Diego based on the weather. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec. Expect 19Â°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in San Diego in March. Check more long-term weather averages for San Diego in March before you book your next holiday to California in 2018.