Neutrino- and anti-neutrino-induced single charm production is particularly relevant to the study of the strange-quark parton distribution function and the threshold effect in the cross-section, associated with heavy quark production. Over the past 30 years, many experiments have been carried out using complementary techniques: calorimetry, bubble chambers and nuclear emulsions.In this note, we review these data and combine them statistically to extract a world averaged single-charm production cross section for both neutrino and anti-neutrino.