condition mean min max 2 h after light 49.70041666666667 43.0826 62.2797 6 h after light 45.80805 34.8403 57.3758 10 h after light 42.16195 35.9822 47.4536 14 h after light 41.23975 34.9199 51.0025 18 h after light 44.92595 36.4684 52.5053 2 h after dark 85.1065 58.2755 114.326