condition mean min max 4 h after light 809.6 809.6 809.6 8 h after light 864.2 841.8 886.6 12 h after light 777.5999999999999 659.4 895.8 4 h after dark 640.05 608.4 671.7 8 h after dark 532.3499999999999 421.4 643.3 12 h after dark 372.4 256.0 488.8