condition mean min max 4 h after light 155.88878 127.272278 184.505282 8 h after light 182.03888949999998 179.695528 184.382251 12 h after light 136.9972545 102.6393 171.355209 4 h after dark 193.7154135 191.408048 196.022779 8 h after dark 187.539255 152.694889 222.383621 12 h after dark 139.114206 139.114206 139.114206