condition mean min max 4 h after light 3423.8 3423.8 3423.8 8 h after light 3604.35 3362.1 3846.6 12 h after light 3489.9 3422.9 3556.9 4 h after dark 3742.55 3307.0 4178.1 8 h after dark 4116.05 3777.6 4454.5 12 h after dark 4036.45 3990.1 4082.8