Sunday, August 18, 2013

Weather Rewind -- August 11-17, 2013

Temperatures last week averaged 3.7 degrees below where we're supposed to in mid August, continuing our September in August (coolest start to August since 1992).  After a typically warm and humid start to the week, punctuated by a soaking rain on Tuesday morning that brought as much as 6.5" of rain to parts of Chester County, the balance of the week was dry, comfortable, and very sunny.  Temperatures flirted with record lows on Thursday morning in the outer burbs to the north and northwest (40's in Allentown, the first sub 60 low in nearly two months in Philadelphia).

Rainfall in the region the past three months, as you're aware, has been incredibly excessive.  But not just here. Rainfall departures from normal around here average at least eight to ten inches since the latter portions of May, running at least 200 percent of average in a number of spots and in Philadelphia's case, three hundred percent of average as Philly's picked up over 27 inches of rain in the last 90 days. Heavy rainfall departures also exist across the Piedmont of Georgia, South Carolina, and the mountains of Western North least twelve to over sixteen inches above average in the last three months, similar to Philadelphia.