Dog tongues hang from the sides of their jaws. Birds seem to lack the energy to fly. People walk slowly, conserving their energy and in vain trying not to perspire. A heavy heat haze hangs over the city with barely a breath of moving air. A building appears to be on fire. Don't you think the photo is a good illustration of the hot day?
Maybe not. It was cold, the sun was on a low path in the sky to setting and briefly reflected its light from the building. In thirty seconds the reflection had gone.