If trend continues a 3% COLA is possible.
The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) increased 3.0 percent over the last 12 months to an index level of 245.770 (1982-84=100). For the month, the index increased 0.5 percent prior to seasonal adjustment.
The CPI-W for:
January 2018 241.919,
Their average is significantly higher than the 2017 benchmark average. That average is 239.668
For the last three months the average is 244.569. What matters for a COLA are the months of Jul, Aug and Sep