People, including Justin, have literally been saying summer is basically starting in late April or May now. That's exactly how it started.
And then of course acting like the start of this May has been typical of spring in recent years.
I’ve been curious the last few days why there’s an argument over shoulder season months warming as fast as July and August. I don’t recall anyone saying that is the case.
I still wouldn’t call May a summer month just like I wouldn’t call October a winter month. They may have bouts of weather like it, but they still have enough differences to not feel like winter or summer.
A lot of the warmth this May in PNW is from developing El Nino, just like the "cooler near average trend" of the last 10 years have been because of 7/10 La Nina's. It's middle ground, but if you smooth out ENSO it's a slight warming trend, which I'd argue is happening to every season now.
On a positive take away from all this. My yard is looking awesome. I’ve been on the go so much. I haven’t been able to enjoy my yard during the spring. So at least I’m enjoying my coffee and watching the yard blossom out.