condition mean min max 4 h after light 25.4625 24.2945 26.6305 8 h after light 27.0103 25.36 28.6606 12 h after light 21.2015 19.1983 23.2047 4 h after dark 26.61975 25.876 27.3635 8 h after dark 22.17795 21.7197 22.6362 12 h after dark 26.983249999999998 26.5594 27.4071