condition mean min max 4 h after light 51.096004 51.0038 51.188208 8 h after light 56.6757835 51.650483 61.701084 12 h after light 63.224523000000005 60.048318 66.400728 4 h after dark 43.393283 34.925334 51.861232 8 h after dark 37.842987 33.316491 42.369483 12 h after dark 44.984058 44.984058 44.984058