condition mean min max 0 h after light 347.663 343.286 352.04 4 h after light 180.4225 177.334 183.511 8 h after light 112.6675 111.424 113.911 4 h after dark 209.2285 197.235 221.222 8 h after dark 241.773 241.471 242.075 12 h after dark 285.587 261.334 309.84