condition mean min max 4 h after light 15.2648505 15.011311 15.51839 8 h after light 15.1173565 13.275037 16.959676 12 h after light 15.112534499999999 14.340166 15.884903 4 h after dark 15.4242595 14.72681 16.121709 8 h after dark 14.4349415 13.351493 15.51839 12 h after dark 18.112676 18.112676 18.112676