API Version Description Updated
Annual 1.0 Annual weather stats from 2010 19/09/2019 XML JSON Embeddable HTML HTML
Monthly 1.0 Monthly weather stats from Jan 2010 19/09/2019 XML JSON Embeddable HTML HTML
Frost Days 1.0 Frost days since 1946 (below 0°C) 19/09/2019 XML JSON Embeddable HTML HTML

Source: http://www.metoffice.gov.gg/annualwxreports.html