condition mean min max 4 h after light 1085.6 1085.6 1085.6 8 h after light 1084.85 1071.3 1098.4 12 h after light 822.2 719.4 925.0 4 h after dark 951.9 761.0 1142.8 8 h after dark 1284.4499999999998 1183.8 1385.1 12 h after dark 1394.55 1242.8 1546.3