September Weather Summary
~Christina Toth~

Sept 1^st  Sept 7^th

As the first week in September began a cold front swept into Pennsylvania and lingered within the state dropping temperatures from the high 70’s to the mid 60’s.  A low pressure system worked its way through PA during the beginning of the week, before moving its way out towards the Atlantic.  Another cold front made its way through the region during mid week this brought a slight decrease in temperatures to the area.
The front was being followed by a high pressure system that worked its way over PA and lingered there during the end of the week. Rain showers remained throughout the week and began to taper off towards the end of the week, due to the high pressure system over the area.

Sept 8^th -  Sept 14^th

A high pressure system lingered over PA for most of the week, finally working its way northeast on the 12^th.  Temperatures stayed in the high 70’s and the area stayed rain free during the time the system was over the area.  Once the high pressure system lifted into the New England region at the end of the week, temperatures dropped to the low 70’s and some light rain over the area.

Sept 15^th -  Sept 21^st

The cold front that was located in the Great Lakes region last week now worked its way across PA and lingered out in the Atlantic during the beginning of the week.  The passing of the front brought a slight dip in temperatures, knocking them from the low 80’s to the low 70’s.  The front was trailed by a high pressure system that lingered over PA till mid week which it then worked its way up into the New England region.  The temperatures gradually rose during this time and the area stayed rain free.  On Sept 18^th while the high pressure system worked its way out of the region, not far southeast in the Atlantic hurricane Isabel was churning off the coast of North Carolina. A warm front interposed between Isabel and the coast.  By Friday Sept 19^th hurricane Isabel reached PA.  Isabel swept her way through western and central PA, but also caused wind and rain all throughout PA and to the surrounding areas.  The temperatures dipped from the high 70’s to the high 60’s during this time.  The warm front that was positioned between the Carolina coast and Isabel the previous day was pushed in front of the hurricanes as Isabel moved west.
With the passing of hurricane Isabel the cold front that was Great Lakes region moved its way east across PA and out into the Atlantic.  A high pressure system trailed behind the cold front and then worked its way north into Canada.  The area received a relief from the rain at the end of the week, which was much enjoyed after the passing of Isabel.  Temperatures also returned to the mid 70’s.


Sept 22^nd - Sept 30^th

The week started with a passing of a cold front bringing a slight decrease in temperatures, but remaining near the 70’s.  Some precipitation fell on the area with the passing of the front.  A high pressure system moved into the area following the front, but moved out of the area by mid week.  Another cold front pushed its way into western PA bringing the temperatures slightly down into the high 60’s.  By the end of the week, a low pressure system hovered over the Great Lakes region.
A cold front brought cooler temperatures to the PA area before it swept across PA by the 28^th.  With the cold front stalling out in the Atlantic, a high pressure system slowly worked its way near PA.  Temperatures changed drastically over the last few days. Temperatures were in the high 70’s in northeast PA and the high 60’s in southwest PA on Sunday Sept 28^th, and ending the month with temperatures in the high 50’s in northeast PA and the low 50’s in southwest PA.

Monthly Weather Summary Table Info
		Town(s)	Date(s)
Max High Temp	88	Valley Forge	11
		Glenwillard	14, 17
Min Low Temp	27	Everett	30
Max Rain	13.89	Tannersville
Min Rain	2.82	Charleroi Lock