For a while, I misremembered the incident as having been Conan’s backstory (understandable, since Howard’s heroes tended to be stamped from a black-haired blue-eyed Celtic or proto-Celtic template…prompting the greater-than-zero possibility that I may unthinkingly have told this story about Conan O’Brien.

(A meteorological impossibility, even had Brigham and Women’s Hospital (1) gone in for such shenanigans; the weather on 18 April 1963 in Boston was “Light Rain, Drizzle, Drizzle with Fog, Drizzle with Smoke, Fog”, with temperatures between the 40s and 60’s.(2)

(1) Where Conan O’Brien’s physician and researcher father worked, so I’m hazarding a guess that that’s where he was born: https://brookline.news/thomas-and-ruth-obrien-long-time-brookline-residents-leaders-in-medicine-and-law-and-parents-of-conan-obrien-die-at-ages-95-and-92/

(2) https://weatherspark.com/h/m/26197/1963/4/Historical-Weather-in-April-1963-in-Boston-Massachusetts-United-States#Figures-ColorTemperature