condition mean min max 4 h after light 27.0426365 26.161895 27.923378 8 h after light 26.907867000000003 21.578968 32.236766 12 h after light 27.569543 23.746574 31.392512 4 h after dark 45.2098655 44.893968 45.525763 8 h after dark 70.2258755 60.388438 80.063313 12 h after dark 28.689217 28.689217 28.689217