condition mean min max 2 h after light 57.3639 56.0089 59.0226 6 h after light 62.7944 56.4582 69.0969 10 h after light 65.9053 63.1479 67.5437 2 h after dark 54.777499999999996 52.1273 56.2528 6 h after dark 47.74086666666667 46.2275 50.531 10 h after dark 41.15716666666667 40.4159 42.4103