condition mean min max 4 h after light 329.102568 322.105403 336.099733 8 h after light 318.79067150000003 296.078211 341.503132 12 h after light 262.7084155 227.689512 297.727319 4 h after dark 301.734545 287.467802 316.001288 8 h after dark 311.257205 308.151252 314.363158 12 h after dark 236.609027 236.609027 236.609027