condition mean min max 4 h after light 19.2945 15.6945 22.8945 8 h after light 21.7121 21.6987 21.7255 12 h after light 26.88575 25.0838 28.6877 4 h after dark 32.7106 31.9033 34.1642 8 h after dark 30.3214 29.8597 31.0791 12 h after dark 25.308366666666668 24.6624 25.812