condition mean min max 4 h after light 20.86325 20.0554 21.6711 8 h after light 21.2746 21.1393 21.4099 12 h after light 20.728749999999998 20.3602 21.0973 4 h after dark 27.29475 25.1201 29.4694 8 h after dark 29.91875 29.6114 30.2261 12 h after dark 28.9467 27.3743 30.5191