condition mean min max 4 h after light 1755.8 1755.8 1755.8 8 h after light 1838.55 1768.3 1908.8 12 h after light 2191.5 2073.4 2309.6 4 h after dark 1720.6 1629.6 1811.6 8 h after dark 1653.25 1550.0 1756.5 12 h after dark 1546.3000000000002 1491.9 1600.7