condition mean min max 4 h after light 1543.4 1543.4 1543.4 8 h after light 1113.65 944.8 1282.5 12 h after light 678.75 428.8 928.7 4 h after dark 509.0 312.9 705.1 8 h after dark 685.8 502.5 869.1 12 h after dark 837.75 736.9 938.6