condition mean min max 4 h after light 651.7711625 443.763924 859.778401 8 h after light 519.6412275 498.8168 540.465655 12 h after light 457.4066595 340.929357 573.883962 4 h after dark 418.539725 332.380646 504.698804 8 h after dark 440.4910055 383.287 497.695011 12 h after dark 509.166638 509.166638 509.166638