condition mean min max 4 h after light 39.950599999999994 38.1275 41.7737 8 h after light 30.72815 29.572 31.8843 12 h after light 34.27135 33.0518 35.4909 4 h after dark 35.598150000000004 32.171 39.0253 8 h after dark 38.69195 37.69 39.6939 12 h after dark 41.61825 41.4432 41.7933