condition mean min max 4 h after light 416.9922355 344.521645 489.462826 8 h after light 310.355252 293.269092 327.441412 12 h after light 300.801809 288.469895 313.133723 4 h after dark 401.6415785 309.385903 493.897254 8 h after dark 500.571698 465.012879 536.130517 12 h after dark 476.012037 476.012037 476.012037