The figure marked the lowest level since 1996 when the Bank of Korea (BOK) began compiling related data.
The average deposit rate stood at 2.60 percent in April.
Their lending rate was also down by 0.04 percentage points to a record low of 4.14 percent, the BOK said.
The rate cut came in step with the central bank's key interest rate cut by 0.25 percentage point to 2 percent in mid-October to support the government's stimulus measures.
The BOK made the rate cut, the second this year, after keeping the benchmark seven-day repo rate on hold at 2.25 percent for two months. The base rate was lowered by 0.25 percentage point to 2.25 percent in mid-August.
reporter
Park Sae-jin
swatchsjp@ajunews.com
