condition mean min max 4 h after light 38.7000025 32.672241 44.727764 8 h after light 40.729603499999996 40.676065 40.783142 12 h after light 35.7760495 27.382213 44.169886 4 h after dark 42.9738955 40.676065 45.271726 8 h after dark 42.8907175 40.676065 45.10537 12 h after dark 35.858872 35.858872 35.858872