condition mean min max 4 h after light 745.669379 716.106701 775.232057 8 h after light 622.970425 445.212841 800.728009 12 h after light 815.6746835 723.616672 907.732695 4 h after dark 485.94108499999993 450.539749 521.342421 8 h after dark 441.2910895 248.297333 634.284846 12 h after dark 699.190078 699.190078 699.190078