condition mean min max 4 h after light 47.443844 41.045423 53.842265 8 h after light 50.6237405 42.729027 58.518454 12 h after light 52.4644905 51.619319 53.309662 4 h after dark 63.185878 51.591966 74.77979 8 h after dark 68.49274199999999 60.226387 76.759097 12 h after dark 59.938118 59.938118 59.938118