A somewhat sunny and 72 degree day sounds fairly routine for Seattle... for early September, maybe even late August.
But October 19? Indeed, strange enough but then when you find out it's only tied for the third-warmest day this month, it's really something.
The 72 degree high for Seattle not only bested the record high for the day (70 set in 1995) but is now the sixth day this month at 70 or warmer -- four of them coming in a row from the 3rd to the 6th topping out at 78 degrees on the sixth.
The 6 days at 70 or warmer is the most in October since 1991, which as I wrote about last month is the year that had the warmest winter on record and had a warm early fall to boot. Well, we're on our way to kicking 1991 to the curb. For starters, we're close to claiming this month as the warmest on record on all three levels: high temperature, low temperature and average temperature as we are a good 3 degrees ahead on all fronts.
Now, we are giving up the 70s (for good? Who knows this autumn!) for a while as we head into a stormy/rainy pattern for the next week with highs near 60, but we have plenty of buffer to wade through a relatively cool streak and still break the record for warmest October.
Seattle just needs to average a high of 61.5 the rest of this month (should be doable) while averaging a low warmer than 43.1 (slam dunk for that record) and 50.21 for average temp (high+low/2). That too should be pretty easy to break considering our persistent overnight heat wave. Seattle has only been under 50 degrees once this month and our average lows are in the mid-upper 40s. (Blame the warm blob of waters off our coast and persistent southerly flow -- more in that excellent blog by UW Prof. Cliff Mass.)
So even if we falter a bit on the high temperatures, we should easily set the record for warmest October by average temperature and low temperature. And of course, you've likely heard the long range forecast for November and the winter is for more of the same.
One more record? According to Utah State grad student Jason Phelps (and also former KOMO weather intern) we're far and away the latest into the second half of the year without our first day with a high cooler than 60 degrees. Previous latest date was Oct. 17 in 1963 (1991 was third place at Oct. 16). There is a risk this streak could come to an end this week with the stormy weather liable to notch a high of 58 or 59, but certainly no chilly weather anytime soon.