condition mean min max 4 h after light 19.143983 17.290218 20.997748 8 h after light 18.5353195 17.205681 19.864958 12 h after light 15.473324999999999 12.855652 18.090998 4 h after dark 28.296933000000003 23.105752 33.488114 8 h after dark 30.8828885 18.886338 42.879439 12 h after dark 14.932867 14.932867 14.932867