condition mean min max 4 h after light 241.8 241.8 241.8 8 h after light 236.4 230.0 242.8 12 h after light 280.35 275.6 285.1 4 h after dark 253.3 210.4 296.2 8 h after dark 212.75 188.7 236.8 12 h after dark 160.2 152.6 167.8