condition mean min max 4 h after light 543.372072 446.384318 640.359826 8 h after light 541.6523045 451.308027 631.996582 12 h after light 558.604209 485.844592 631.363826 4 h after dark 494.84519800000004 393.431142 596.259254 8 h after dark 392.6961145 320.85248 464.539749 12 h after dark 416.385903 416.385903 416.385903