Yes, that's what I meant. The rain lasted all night and half through the next day, so there was a chance for everything. Near the base was nothing at all. The only thing moving was the lava in the (covered) lava pits). I had usually an armada of walking goldfish walk through the open ground floor, but there weren't any spawns. Then I went around further away from the base to look for something. Everything was eerily quiet.I'm not aware of any changes to rain spawns, and they've been spawning normally on my end.
Walking goldfish are more likely to be seen near your NPCs, while other enemies are more likely to be seen away from the NPCs. Needless to say, Raincoat Zombies only show up at night.
But I'll keep an eye on this. If this was a fluke, I will post again.