The preliminary figures released by state agency Rosstat represent a slight improvement on government forecasts of a 4.3 per cent year-on-year fall but still show that Russia's economy is mired deep in trouble.
Russia's government estimates that the economy will shrink by around 3.9 per cent in 2015 before recovering slightly by 0.7 per cent in 2016.
The World Bank in September predicted the Russian economy would shrink by 3.8 per cent in 2015 in its baseline scenario, a far steeper decline than an earlier forecast of a 2.7 per cent contraction.
The World Bank in September ditched its earlier forecast of a gentle recovery with 0.7 per cent growth in 2016. It now expects Russian economic output to decline 0.6 per cent next year, with a recovery only appearing in 2017 with growth of 1.5 per cent.
The poverty rate has climbed to 15.1 per cent, representing 21.7 million people, in what the World Bank called a "troubling rise" exacerbated by increasing food prices.
The International Monetary Fund estimates that Western sanctions imposed on Moscow over its meddling in Ukraine could cost Russia about nine per cent of GDP in the medium-term.
