condition mean min max 4 h after light 19.255850000000002 17.0867 21.425 8 h after light 17.772199999999998 17.5991 17.9453 12 h after light 20.95985 20.5845 21.3352 4 h after dark 26.994 25.575 28.0715 8 h after dark 27.765666666666668 25.9446 29.9208 12 h after dark 22.471433333333334 19.4911 24.2773