condition mean min max 4 h after light 654.2 654.2 654.2 8 h after light 491.20000000000005 477.1 505.3 12 h after light 579.0 389.3 768.7 4 h after dark 609.3 587.5 631.1 8 h after dark 728.25 494.6 961.9 12 h after dark 789.5999999999999 745.4 833.8