condition mean min max 4 h after light 913.2 913.2 913.2 8 h after light 579.55 417.3 741.8 12 h after light 497.45000000000005 392.8 602.1 4 h after dark 433.55 408.6 458.5 8 h after dark 688.3 464.6 912.0 12 h after dark 1018.1999999999999 776.3 1260.1