Bitter and clear. The air fell through the small hours and sat near −1° by first light with a north wind that found every gap. Then the sun climbed. It brought the day up to near 20° by mid-afternoon, which felt like a gift after the morning, and the sky stayed empty from edge to edge. The wind eased with the light. By late evening the cold was coming back down hard, the air near 10° and the stars sharp.