condition mean min max 4 h after light 910.8 910.8 910.8 8 h after light 791.0 763.9 818.1 12 h after light 949.0 818.9 1079.1 4 h after dark 1090.2 987.0 1193.4 8 h after dark 1029.25 1000.3 1058.2 12 h after dark 1151.4499999999998 1091.8 1211.1