The Working Group on Seasonal to Interannual Prediction (WGSIP) in collaboration with the Centro de Investigaciones del Mar y la Armosfera (CIMA) invites the research community to explore the Climate Historical Forecast Project (CHFP) database for their studies on the seasonal predictability of the global climate. The CHFP database consists of data from retrospective predictions of the seasonal climate from year to year across recent decades. For access the database see the entry page on the CIMA website.