Trader consensus on the 70-71°F bin for New York City's highest temperature on October 5 reflects National Weather Service observations from Central Park, where afternoon readings peaked near this range under clear skies, light northwest winds, and a stable high-pressure ridge that limited cloud cover and allowed typical early-October solar heating. This aligns closely with the 1991-2020 climatological average high of 69°F and recent model runs showing minimal deviation. Official preliminary climatological data (CF6) and METAR reports confirm the outcome, with traders noting that only substantial revisions to station measurements or boundary definitions would alter resolution.