condition mean min max 4 h after light 2647.5055585 2207.317522 3087.693595 8 h after light 2010.0720195 1620.748269 2399.39577 12 h after light 2289.3568779999996 2096.770518 2481.943238 4 h after dark 1968.0820665 1694.19718 2241.966953 8 h after dark 1517.4650245 1091.676307 1943.253742 12 h after dark 2554.246654 2554.246654 2554.246654