condition mean min max 2 h after light 22.217933333333335 18.9245 25.708 6 h after light 17.87625 12.6745 22.1817 10 h after light 17.3556 13.6238 22.1133 14 h after light 19.5917 15.8185 23.1639 18 h after light 21.343033333333334 18.0791 24.8745 2 h after dark 21.597483333333333 16.651 26.6428