condition mean min max 3 h after light 13.572700000000001 12.5035 15.3879 6 h after light 14.180866666666667 10.0288 16.8567 9 h after light 16.3625 15.0343 18.7762 12 h after light 20.69095 18.2348 24.8952 3 h after dark 24.8552 22.0278 26.4815 6 h after dark 21.8297 21.0424 22.9844 9 h after dark 18.0996 15.9343 21.2483 12 h after dark 18.36465 16.9202 19.8091