Looking for my Exact Zone

I live in NE PA, in Jessup PA 18434 to be exact, and every time i look at a map or ask around i get told i could be zone 5 or 6, but i would love to know which.
If anyone can help, that'd be grrrreat.
Thanks
Elaine
=}

http://usna.usda.gov/Hardzone/hzm-ne1.html
Looks to me like 5a or b .....so basically zone 5

Thanks for the response that was quick and helpful too
=]

You're welcome.
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