condition mean min max 4 h after light 1217.9 1217.9 1217.9 8 h after light 1082.85 1064.5 1101.2 12 h after light 1115.05 919.9 1310.2 4 h after dark 1226.6999999999998 1039.8 1413.6 8 h after dark 1321.5 1241.7 1401.3 12 h after dark 1410.75 1298.3 1523.2