Considering nonwhites in Boston are mostly Black or Afro-Caribbean, very unlikely Trump did better among nonwhites than whites there.
IIRC Boston proper has a fair amount of Latinos and Asians, but overall it's still much whiter than NYC or Philly. Voting D does not absolve individual voters of (sub)conscious racial prejudice though.
1. Hawaii - This might be one state where Trump did better amongst non-whites than Whites but close either way
I'm a bit skeptical of this assertion, because monoracial Asians aren't the only POC in that state, and even then I'm skeptical that monoracial Asians were significantly more R than monoracial whites there. But I don't quite believe reagente's estimate that Trump got 47% with HI whites either.