I have fished walleyes in Utah Lake and the Jordan River going back to the early sixties. I have taken walleyes out of Deer Creek since the late 70’s. Here are a few of my “rememberies”.
Utwalleye gave good advice on Deer Creek. It is not as easy to target walleyes any time of year. You really have to work out the times and the spots from personal experience. And when the water levels go wacko, it’s a whole new game every year.
In Utah Lake, I have seen walleyes staging for the spawn as early as mid February…especially around the hot springs at Lincoln Beach and near Saratoga. I have taken them up the Provo River, before they closed it (thankfully) during the first two weeks of March. In those same years, they were also showing up around the rocks near the Provo River mouth and around the other rocky shorelines of the lake. During the spawn, aggressive males are much easier to catch than egg-laden females.
At Willard Bay, you can find spawn happy walleyes anytime from mid march on, depending on water temps and water levels. Again, they hit the rocks at sundown and through the night when the water is agitated (windy).
As Predator points out, the post spawn period is when you have your best shot at catching numbers of walleyes…and some of the larger females. Once they dump their bucket (of eggs), they have a big empty space to fill. That period usually coincides with warming springtime water temps. This is usually sometime in May, through the first of July, when the water temps go over 65 to 70 degrees and the wallies get stressed and sluggish.
You can actually catch them all through the summer, mostly at night. But, when they are actively feeding, they will hit all day in the murky waters of Utah Lake, or around the rocks at Willard when the wind is blowing onshore. I have had some phenomenal catches by positioning my tube away from shore and fighting the waves while casting right up onto the rocks. Some of the strikes occur almost as soon as the jig hits the water.
In Utah Lake, the big walleye stack up at the outlet, where the lake flows out into the Jordan River. Use a big black plastic jig or marabou and bounce it down the current. The big mamas dine well on small mudcats and white bass going downriver for the summer. I have caught them all day long wading or kicking against the current in my tube.
Hope that gives a bit more info on the timeline. It really does seem like ever year brings an entirely new set of conditions to work out.
Hint: Chartreuse and hot pink work early in the cycle…and white too. Later, go to yellow, black, black and chartreuse and especially purple. Purple is probably the most overlooked walleye color.