Every year, there’s a little freak-out from Seattle communities about spider season.
Seattle’s annual spider season has arrived, driven primarily by mature male giant house spiders actively searching for mates indoors during August and September.
We never noticed anything in particular about spiders in the fall when we lived there. I suspect it’s nothing but a media-fed frenzy that has little connection to reality.
It’s also not a Seattle thing. We get a surge in spider visibility in the fall, too, and it’s simply because some common spider species that live near humans are in frantic mating mode as the warm weather starts to go away. Relax.
I will say, though, that one spider-fact that’s special about Seattle is the swarms of cross spiders, these spectacular orb-weavers, that are everywhere. I remember them from when I was a kid. Or rather, maybe what’s special is that where I live now is totally lacking in Araneus diadematus. We’re in a weird hole in its range.












