Any time now I think would be okay. A friend of mine has been catching quit a few around the Brunau Bridge in the snake. He's been using night crawlers and cut bait. Now, the last time I was at Brownlee after Catfish they were sickly looking so I never kept any. They looked sick. I won't fish brownlee again for catfish. Sorry thats just me. Maybe this year they might look okay but I'm not going to fish for them my self.
Also tried the john day past the narrows also great fishing. Hope that helps!