Look below, there is a nationwide forecast.
http://www.housingpredictor.com/pennsylvania.html (your state)
1.6%-2.7% price increase is expected by this site depending on the city.
Pushed by the federal government's tax credit for first time buyers and a growing pool of investors, Pennsylvania housing markets are projected to pull out of the national downturn earlier than many other places in the U.S.
Is the forecast any near right? Come back next december and find out. That is the best I can give you.