Official National Weather Service observations recorded Denver’s daily minimum temperature at 47°F on October 13, 2026—9°F above the 1991–2020 normal—placing it squarely in the 46–49°F range that dominates current market-implied odds. A warm early-October pattern gave way to a cooler, moister air mass advecting from the north, with overnight radiative cooling under increasing cloud cover limiting further temperature drops after the 7 a.m. low. Forecast model consensus from the prior 48 hours had converged on mid-to-upper 40s readings, consistent with the observed 47°F minimum and the elevated probabilities for the 48–49°F and 46–47°F bins. Resolution hinges on the final NWS climatological summary, with any post-processing adjustments unlikely to shift the outcome outside these leading intervals.