condition mean min max 4 h after light 933.1 933.1 933.1 8 h after light 1119.3 1058.8 1179.8 12 h after light 680.35 378.1 982.6 4 h after dark 776.75 412.0 1141.5 8 h after dark 982.25 556.2 1408.3 12 h after dark 638.8 538.4 739.2