Sunday, September 09, 2012

Weather Rewind: September 2-8, 2012

 Temperatures last week averaged 4.7 degrees above normal -- mainly because of tropic-like humidity helping to keep average nighttime lows as much as ten degrees above average during the course of the week.  We didn't crack 90 at all last week, despite a couple of close calls on Friday and Saturday, but overnight lows in the 70's each night until Saturday's late day cool-off in the wake of a frontal boundary passing through was responsible for the warm push.

We picked up 4.01" of rain last week in Philadelphia -- over three inches of that from remnant moisture of Isaac working through the region on Tuesday in tandem with a frontal boundary working northeast ahead of a cool front that pushed through the region on Wednesday.  Some locations (see below) over the course of the week picked up more than that.  The Ocean/Burlington County border in South Jersey had rainfall totals that approached ten inches for the course of the week (through early yesterday morning).  Other "bonanza" locations included Northeast Philadelphia (over five inches) and the Concordville area between Delco and New Castle County (also over five inches).  The tropic-like rains were not as prolific across Berks and Western Chester Counties, with less than two inches common in those areas...and even less rainfall occurring in some parts of Central PA as well as in Central NJ.