condition mean min max 4 h after light 31.72415 28.752 34.6963 8 h after light 58.96705 58.8604 59.0737 12 h after light 83.59375 83.1604 84.0271 4 h after dark 78.37215 73.6783 83.066 8 h after dark 62.0057 60.9721 63.0393 12 h after dark 61.8544 60.7885 62.9203