condition mean min max 4 h after light 137.07169 96.470458 177.672922 8 h after light 132.0314295 112.693595 151.369264 12 h after light 162.789222 129.75158 195.826864 4 h after dark 135.919587 118.998823 152.840351 8 h after dark 109.8571015 77.132106 142.582097 12 h after dark 80.583021 80.583021 80.583021