Depending on where you're from in CA, be ready for a bit of culture shock.

Here are some generalizations about some differences that hold true for a lot of the south central areas compared to CA. Our traffic is a lot better than a lot of areas of CA, but things may be further away than you're used to. A lot of areas of PA fall into a "anything you could need is within 20 minutes of where you live" radius which is really nice, but there's a lot less diversity for entertainment, eating out, and sometimes shopping. As someone else mentioned, our winters are much colder and we tend to get a decent snowfall at least once a year. Southern PA is NOT good with snow removal or driving in winter weather. We do not get harsh enough winter weather often enough compared to the rest of the northeast to be efficient with its removal or experienced in driving conditions (coming from the perspective of someone who has lived in other northeast states as well). Depending on the exact location of where you move, many pockets of PA have a subculture where people live their entire lives in a single county/town. If you are religious, your main sense of community will probably come from your place of worship. Christian churches are easy to find, even specific denominations and megachurches if that's your thing. Mosques and temples are significantly less common and you may want to narrow your house search within a certain community if you hope to be active in a Jewish or Muslim community. The cost of living is generally lower, although it's been increasing a lot the past couple years (although this is happening everywhere). Many PA public schools have been I in the news over issues of book bans, teaching evolution, internal scandals, LGBTQ+ respect, etc. However, some public school districts are actually pretty good. There are not many private school options. The political climate is quite different as well, although I won't go into that in great detail.