condition mean min max 4 h after light 44.35515 41.3564 47.3539 8 h after light 37.1144 37.0978 37.131 12 h after light 35.7269 34.5441 36.9097 4 h after dark 39.28245 38.3499 40.215 8 h after dark 40.567 39.0261 42.1079 12 h after dark 47.283 45.7968 48.7692