Trader consensus on Chengdu's highest temperature reaching exactly 22°C on March 20 stems from authoritative forecasts from the China Meteorological Administration and global models like ECMWF, which converge on a daytime high of 22°C under a stable high-pressure ridge suppressing warmer advection. Historical March data for Chengdu shows average highs of 17-20°C, with recent observations confirming mild, dry conditions conducive to this precise outcome—sunny skies and light winds limiting extremes. This positioning reflects low model spread, with only 0.2% odds on warmer scenarios. Realistic challenges include sudden foehn winds from the Tibetan Plateau or unforecasted convective heating, though diurnal variability remains within ±1-2°C based on prior verification statistics.