Pennsylvania

Erie Erie Philadelphia Philadelphia Pittsburgh Pittsburgh Williamsport Williamsport Allentown Allentown Harrisburg Harrisburg Wilkes-Barre Wilkes-Barre Altoona Altoona New Castle New Castle State College State College Bradfort Bradfort DuBois DuBois Elmira Elmira Uniontown Uniontown Cumberland Cumberland Frederick Frederick Indiana Indiana uv index Pennsylvania North America Forecast maps
Last updated: We, 20 Aug, 10:23 BST

The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the two weeks around the summer solstice). Indices of 9 and 10 are common in the Mediterranean area. The Sun Index forecast refers to the daily maximum.


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