condition mean min max 4 h after light 250.6 250.6 250.6 8 h after light 366.0 309.4 422.6 12 h after light 402.25 343.0 461.5 4 h after dark 399.95000000000005 251.7 548.2 8 h after dark 313.65 202.4 424.9 12 h after dark 260.9 201.2 320.6