condition mean min max 4 h after light 18.0699365 15.84287 20.297003 8 h after light 15.5739315 12.43557 18.712293 12 h after light 21.937964 12.756891 31.119037 4 h after dark 32.343391999999994 24.453891 40.232893 8 h after dark 46.257459 27.942736 64.572182 12 h after dark 36.544306 36.544306 36.544306