Hansen did publish in C (but the quote looks to be in F) and his original paper is still on the GISS site (to their credit). He zeros to 1951-1980 mean. Eye balling the graph below it looks like 2018 was predicted at +.6, 1.0, and 1.4 C for his case c,b,a (CO2 emissions strongly reduced, unchanged, grow normally). He has a model that goes to 2060 and shows 4C increase.
I estimate 2017 using the same baseline to be ~+.5 on GISS current charts.
Note to me this does not prove anything except that Hanson 1988 predictions were too hot since the current models do not predict +4C by 2060 from the early baseline. Happy to be corrected if I have misunderstood.
