The population was 5,586 at the 2000 census and 5,764 at the 2010 census. Sweetwater is the home of the Craighead Caverns which contains the Lost Sea, the United States' largest underground lake.
2011, The HOTTEST Year for Texas. Tweet. For most of Texas, 2011 is now the hottest year on record while city after city shatter records of 100 degree days. Texas is in a severe drought, only averaging about 1 inch of rain during July, and in many areas things are becoming desperate.
Based on the tourism score, the best times of year to visit Houston for warm-weather activities are from late March to mid May and from late September to early November. Temperature The hot season lasts for 3.6 months, from June 2 to September 22, with an average daily high temperature above 89Â°F. The hottest day of the year is August 6, with an average high of 95Â°F and low of 77Â°F. The cool season lasts for 3.0 months, from November 26 to February 26, with an average daily high temperature below 70Â°F. The coldest day of the year is January 5, with an average low of 47Â°F and high of 63Â°F.