condition mean min max 4 h after light 42.689 40.6485 44.7295 8 h after light 34.802350000000004 33.9176 35.6871 12 h after light 39.0371 38.5694 39.5048 4 h after dark 48.47555 47.7998 49.1513 8 h after dark 58.087599999999995 57.6699 58.5053 12 h after dark 56.1348 54.209 58.0606