condition mean min max 4 h after light 303.3 303.3 303.3 8 h after light 303.4 293.0 313.8 12 h after light 367.05 341.6 392.5 4 h after dark 534.0 526.0 542.0 8 h after dark 625.25 556.6 693.9 12 h after dark 513.85 377.3 650.4