Lake Travis is currently 82 percent full at 669.41 feet above mean sea level—the average level of an ocean’s surface—according to the Lower Colorado River Authority’s River Operations Report from Dec. 21.

Average Lake Travis lake levels have slowly decreased through 2017, which saw a peak of 682.75 feet above mean sea level in January. The last month in which the lake was full on average was April, according to LCRA data.

The highest lake levels recorded in 2017 were in February, 683.1 feet above mean sea level. The lake was at its lowest point Dec. 16 at 669.28 feet above mean sea level.