condition mean min max 4 h after light 41.83325 38.9386 44.7279 8 h after light 24.0203 22.7888 25.2518 12 h after light 25.454050000000002 25.2938 25.6143 4 h after dark 30.1596 29.0193 31.2999 8 h after dark 40.9161 40.5831 41.2491 12 h after dark 42.9044 41.4395 44.3693