condition mean min max 0 h after light 29.52945 28.0542 31.0047 4 h after light 27.10635 25.085 29.1277 8 h after light 16.87425 16.4409 17.3076 4 h after dark 17.7595 14.8097 20.7093 8 h after dark 22.674 22.5409 22.8071 12 h after dark 21.13825 19.8417 22.4348