condition mean min max 4 h after light 1714.633889 1195.285 2092.276667 8 h after light 1238.186111 1109.245 1394.143333 12 h after light 1360.92 1082.503333 1809.35 1.5 h after dark 1635.5699997666666 963.5533333 2102.233333 5.5 h after dark 1173.4911112333334 927.4866667 1320.29 9.5 h after dark 1666.3077776666667 1234.373333 2342.93