How Bad Has It Been?
[Via Cliff Mass Weather Blog]
Another round of rain struck today and the grumbling has increased…
“The worst summer I can remember”
“I thought Septembers were good around here”
and other comments that cannot be repeated on a family friendly blog.
Looking at the temperature versus normal for the past four weeks, tells the recent tale (see below). Except for a few brief warm periods, most days have been below normal.
Today was particularly noteworthy: the temperatures hardly fell last night and the humidity was palpable.
Dewpoints were in the low to mid 60s today…which is very, very unusual around here. It felt like the East Coast during the summer! Here is a plot of dewpoint for the past six months (click to expand). Remember, dewpoint is a measure of the amount of moisture in the air…the temperature to which you have to cool it to get saturation. Yesterday, was the highest dewpoint in SIX MONTHS.
I asked UW staff member Neal Johnson to plot up the number of days equal to or greater than 70F from January 1 through September 15th for this year and all other years since 1948 (see below). The results?
(click to expand)
We had far fewer 70F days (55) than normal (72) and in fact this has been the worst year by this measure since 1980! Yes, the worst summer for three decades! No one younger than 35 can remember anything worse! 1980 was comparable, and then you would have to go back to 1954 and 1955, which were even cooler, believe it not.
It is not supposed to be so humid in Seattle as to be uncomfortable but it has gotten close recently. September is usually the best month weather-wise. It gets us ready for the cloudy , dark and short days of the winter. Without some pleasant weather to look forward to, the depressing days up here will be much, much worse.
It may not be bad compared to areas with lots of heat – although few of us have air conditioning to =deal with hot, humid days – but it is what keeps us going through a winter when the sun does not rise until after we get to work and sets before we get home, where it rains during morning rush hour and during evening rush hour and the overcast skies prohibit seeing the sun even on weekends.
I am not looking forward to this winter, which, if it remains a La Nina one, will be pretty harsh up here.