condition mean min max 4 h after light 40.303250000000006 39.7588 40.8477 8 h after light 33.99325 33.9767 34.0098 12 h after light 41.443749999999994 41.2664 41.6211 4 h after dark 78.33525 75.5249 81.1456 8 h after dark 72.0565 70.0006 74.1124 12 h after dark 60.68795 58.7586 62.6173