condition mean min max 0 h after light 307.552 300.149 314.955 4 h after light 296.726 292.011 301.441 8 h after light 188.058 183.218 192.898 4 h after dark 329.2575 322.409 336.106 8 h after dark 336.925 322.12 351.73 12 h after dark 333.0925 318.273 347.912