condition mean min max 4 h after light 294.3897995 217.770518 371.009081 8 h after light 261.7171625 247.700357 275.733968 12 h after light 170.0293775 119.980544 220.078211 4 h after dark 241.8130575 211.8026 271.823515 8 h after dark 156.8105545 134.616672 179.004437 12 h after dark 163.130776 163.130776 163.130776