condition mean min max 4 h after light 643.3 643.3 643.3 8 h after light 574.25 468.9 679.6 12 h after light 439.59999999999997 268.9 610.3 4 h after dark 244.7 169.9 319.5 8 h after dark 169.10000000000002 165.4 172.8 12 h after dark 175.3 143.6 207.0