Cold
I'm afraid that no bodies of water border the state of Oklahoma.
water in oceans, lakes, rivers and streams
moderates changes in temperature on the surface
Zero.DubyaThompson wrote:The only natural lakes in Oklahoma are a series of oxbow and playa lakes. The typically crescent-shaped oxbow lakes are found in abandoned channels (oxbows) of a meandering stream and occur mainly on flood plains of the major rivers, such as the Red, Arkansas, Washita, North Canadian, and Verdigris Rivers in eastern and central Oklahoma. Oklahoma has sixty-two oxbow lakes, each of which covers at least ten acres, and the largest, near the Red River in McCurtain County, is 272 acres.Playa lakes form in shallow, saucer-like depressions scattered across the semiarid High Plains region of northwestern Oklahoma and the Panhandle. These water bodies are characterized by internal drainage and have no outflow. They hold water during and after rainy seasons, and most of the water is lost through evaporation and/or seepage into the ground. Only a few playa lakes last year-round, but the intermittent or ephemeral playa lakes number about six hundred and appear following thunderstorms.Taken from http://digital.library.okstate.edu/encyclopedia/entries/L/LA010.html
It all depends on where the lake is located at. Lakes in colder climates will have a colder normal temperature than that of lakes in warmer climates.
cool
pressure of the depths are the same
Oklahoma has more enclosed water than any other state. this includes lakes and ponds. this does not include rivers
Lakes, and to a lesser degree, rivers, freeze as the ambient temperature reduces below Zero. This never happens "suddenly" and it takes time for the water to assume the surrounding temperature.
thermal pollution
The thermocline is a distinct layer in a body of water where the temperature changes rapidly with depth. It separates the warmer surface layer from the colder deeper layer in oceans and lakes, creating a barrier to mixing between the two layers.
Lakes, and to a lesser degree, rivers, freeze as the ambient temperature reduces below Zero. This never happens "suddenly" and it takes time for the water to assume the surrounding temperature.