condition mean min max 0 h after light 39.65025 39.4603 39.8402 4 h after light 19.8955 17.6972 22.0938 8 h after light 19.614 19.4201 19.8079 4 h after dark 22.54465 21.8805 23.2088 8 h after dark 21.855 21.7625 21.9475 12 h after dark 32.206849999999996 24.2567 40.157