condition mean min max 4 h after light 1465.7 1465.7 1465.7 8 h after light 1456.25 1453.1 1459.4 12 h after light 1290.05 1217.8 1362.3 4 h after dark 1180.1999999999998 1172.3 1188.1 8 h after dark 1191.5 1085.3 1297.7 12 h after dark 1192.5500000000002 1169.2 1215.9