condition mean min max 4 h after light 240.4 240.4 240.4 8 h after light 220.95 200.0 241.9 12 h after light 317.8 219.8 415.8 4 h after dark 409.1 390.6 427.6 8 h after dark 472.85 393.2 552.5 12 h after dark 418.2 414.7 421.7