Bad weather cut the number of people migrants and refugees arriving in Greece, the main gateway to Europe, by 40 percent last month from December, the European Union's border agency Frontex said on Monday. The United Nation's refugee agency UNHCR says more than 101,000 migrants and refugees have got to Europe so far this year, mostly via Greece, with some 6,500 reaching the continent in Italy. UNHCR says 406 people died or went missing attempting the voyage this year so far.