If there is any benefit to a very hot and dry summer in Oklahoma, it has to be the lake conditions. What Clear Oklahoma Lake Water Actually Looks LikeGranted, a clear Oklahoma lake isn't a deep, pretty blue. Oklahoma Lake Conditions Depend On Where You AreWhile this is true of a lot of Oklahoma's lakes, it's not the same story they're all telling. As miserably hot as it has been, you can't deny it has been a pretty great lake summer. Oklahoma's Ten Best Fishing Lakes When it comes to fishing, not all lakes are equal.