condition mean min max 4 h after light 258.4 258.4 258.4 8 h after light 306.25 267.5 345.0 12 h after light 376.0 357.0 395.0 4 h after dark 283.15 204.5 361.8 8 h after dark 216.9 209.0 224.8 12 h after dark 217.5 173.6 261.4