condition mean min max 4 h after light 719.8 719.8 719.8 8 h after light 688.55 688.3 688.8 12 h after light 955.95 526.0 1385.9 4 h after dark 1837.25 1527.9 2146.6 8 h after dark 2907.1499999999996 2556.7 3257.6 12 h after dark 2861.2 2582.2 3140.2