condition mean min max 4 h after light 136.3511725 135.26787 137.434475 8 h after light 125.93495250000001 124.267983 127.601922 12 h after light 141.9146875 126.674241 157.155134 4 h after dark 131.5947595 124.818306 138.371213 8 h after dark 169.141925 166.305312 171.978538 12 h after dark 147.265044 147.265044 147.265044