condition mean min max 4 h after light 924.5 924.5 924.5 8 h after light 1063.9 1030.3 1097.5 12 h after light 806.5500000000001 373.2 1239.9 4 h after dark 675.6 416.8 934.4 8 h after dark 1005.05 843.6 1166.5 12 h after dark 688.4 531.0 845.8