condition mean min max 4 h after light 445.05067499999996 356.130205 533.971145 8 h after light 551.442773 425.924364 676.961182 12 h after light 490.4373345 481.023458 499.851211 4 h after dark 311.620442 237.393443 385.847441 8 h after dark 737.8623815 542.8416 932.883163 12 h after dark 150.294362 150.294362 150.294362