condition mean min max 4 h after light 464.920527 358.693595 571.147459 8 h after light 472.2062465 424.641975 519.770518 12 h after light 529.733373 495.023092 564.443654 4 h after dark 502.4013765 468.944795 535.857958 8 h after dark 378.463617 305.692005 451.235229 12 h after dark 384.592575 384.592575 384.592575