condition mean min max 4 h after light 20.41075 16.3557 24.4658 8 h after light 36.0411 35.2095 36.8727 12 h after light 27.51515 23.9482 31.0821 4 h after dark 38.78945 33.0174 44.5615 8 h after dark 24.43325 21.4324 27.4341 12 h after dark 20.6693 16.0131 25.3255