Sunset hike for our anniversary last night.

Yeah, that's a part of it. I think another aspect is different forecast hour cadences between models. HRRR, for example, has hourly forecast increments, while GFS is 3-hourly through 240 and then 6-hourly after that, so switching models does not always have a clean 1:1 forecast hour match. I had done some work to help alleviate this issue where it should preserve the valid time as closely as possible when switching models, then fall back to nearest available forecast hour when there isn't an exact match (with accompanying toast notification). But if it's still jumping around more than expected that's definitely something I'll work to tighten up. And I appreciate the offer. Always open to any help. The repo is public here. Feel free to poke around, open an issue, or submit a PR if you spot something you want to tackle. I'm currently working on refactoring the city value pipeline, adding to the new Climate page (thanks to @SeattleSmokeLayerFan for the suggestion), and ironing out the new comparison tool (especially on mobile).

Currently 59 with heavy rain. Great stuff for June 21.

Interesting. I’d think the reason our winters have warmed comparatively less is because most of our winter weather comes directly from the largest heat sink on the planet. Despite the “7 straight months of cold rain” stereotype most of our winters have pretty much always had mild, semi-pleasant 50-55°F partly cloudy days liberally salted throughout thanks to said heat sink. At least, they’re probably more pleasant than anything in a Phoenix or Florida summer. The sheer lack of these really made 2016-17 stand out from nearly every other recent winter. I don’t think most here really appreciate just how abnormal that winter was, even in the “good ol’ days” it wasn’t the norm or really even close to it.

That is only since 1970. Over the last 150+ years it’s a lot more evenly distributed. The shorter time windows allow more interdecadal variability into the long period post-LIA trend. For instance, the new intradecadal/low frequency state we’ve entered is likely to shift the focus of western warming from summer to winter instead, and we’ve already begun to see indications of that in recent winters (not every year follows the mean, but that will be the theme IMO).