<page_title> Oulu </page_title> <section_title> Climate </section_title> <table> <cell> 477 (18.8) <col_header> Climate data for Oulu, 1981-2010 normals </col_header> <col_header> Year </col_header> <row_header> Average precipitation mm (inches) </row_header> </cell> </table>
The average annual precipitation is 477 mm.