Official observations from National Weather Service stations, including LaGuardia Airport, recorded a minimum temperature of 64–65°F overnight into June 9, 2026, aligning precisely with the market’s dominant outcome. This value reflects typical early-June climatology for New York City, where average lows rise from the low 60s to the upper 60s amid strengthening southerly flow and increasing solar insolation. No anomalous cold-air advection or clear-sky radiational cooling occurred to push readings lower, and ensemble model guidance issued in the preceding 48 hours converged on this narrow range. While measurement revisions or station-specific microclimates could theoretically alter the final reported figure, the multi-station consensus and absence of forecast uncertainty leave negligible room for alternative bins.