The city, restricted to 1.8 million gallons per day (mgd), had a peak day of 2.05 mgd last Monday, but conservation efforts helped keep the weekly average at 1.6 mgd.
Lake J.B. Thomas is now 0.77 percent full with just 1,544 acre feet of water.
This time last year, the lake held 7,308 acre feet and was 3.64 percent full.
Snyder is receiving a mixture of water from Thomas and the O.H. Ivie Reservoir.
Ivie, which is now less than 16 percent full, serves Snyder, Odessa, Big Spring, Midland and San Angelo.