condition mean min max 4 h after light 37.918728 29.851906 45.98555 8 h after light 59.4266595 40.047745 78.805574 12 h after light 35.5771145 29.851906 41.302323 4 h after dark 23.016441999999998 16.317011 29.715873 8 h after dark 27.017277 25.517645 28.516909 12 h after dark 14.428889 14.428889 14.428889