condition mean min max 4 h after light 326.7 326.7 326.7 8 h after light 358.6 283.2 434.0 12 h after light 357.25 312.6 401.9 4 h after dark 388.15 353.9 422.4 8 h after dark 396.6 388.4 404.8 12 h after dark 361.25 350.3 372.2