condition mean min max 4 h after light 719.621 713.803 725.439 8 h after light 378.5565 346.124 410.989 12 h after light 61.2322 52.1666 70.2978 4 h after dark 192.173 190.09 193.759 8 h after dark 174.39166666666668 168.317 185.441 12 h after dark 430.3546666666667 403.667 471.354