condition mean min max 3 h after light 254.715 243.73 266.115 6 h after light 227.88766666666666 201.778 276.499 9 h after light 252.84199999999998 237.508 264.782 12 h after light 233.8195 217.709 244.66 3 h after dark 211.199 177.08 231.732 6 h after dark 176.22466666666665 151.164 200.547 9 h after dark 167.21866666666668 165.684 168.161 12 h after dark 186.39800000000002 178.401 194.395