condition mean min max 2 h after light 598.5996666666667 445.062 734.69 6 h after light 490.166 349.881 682.704 10 h after light 562.0401666666667 330.171 747.737 14 h after light 507.6223333333333 243.822 683.15 18 h after light 439.1815 352.349 531.378 2 h after dark 746.179 613.055 992.34