condition mean min max 4 h after light 36.61475 35.6467 37.5828 8 h after light 27.67215 26.2643 29.08 12 h after light 27.201700000000002 25.6686 28.7348 4 h after dark 29.609933333333334 27.0435 32.8447 8 h after dark 46.09813333333334 43.9303 48.3504 12 h after dark 52.537333333333336 44.3089 57.1381