condition mean min max 0 h after light 19.6286 19.0659 20.1913 4 h after light 20.20445 19.8721 20.5368 8 h after light 23.255200000000002 21.5574 24.953 4 h after dark 27.878349999999998 26.2152 29.5415 8 h after dark 30.1774 28.4345 31.9203 12 h after dark 22.333399999999997 21.8185 22.8483