condition mean min max 4 h after light 621.9 621.9 621.9 8 h after light 481.20000000000005 466.1 496.3 12 h after light 584.35 498.1 670.6 4 h after dark 662.1500000000001 593.6 730.7 8 h after dark 805.3 770.7 839.9 12 h after dark 693.85 690.1 697.6