condition mean min max 4 h after light 16.3737 12.6825 20.123 8 h after light 18.80911 7.83773 28.1 12 h after light 24.6204 18.2541 31.9145 4 h after dark 27.177400000000002 23.8027 29.5684 8 h after dark 24.118966666666665 22.3005 25.3514 12 h after dark 19.544533333333334 15.7389 23.0249