condition mean min max 4 h after light 235.9 235.9 235.9 8 h after light 188.75 171.1 206.4 12 h after light 147.45 101.0 193.9 4 h after dark 237.7 177.7 297.7 8 h after dark 285.85 259.4 312.3 12 h after dark 258.2 248.5 267.9