condition mean min max 4 h after light 19.7553 19.5676 19.943 8 h after light 11.34895 11.3093 11.3886 12 h after light 13.208749999999998 12.6139 13.8036 4 h after dark 21.6083 21.4255 21.7911 8 h after dark 22.04195 21.3577 22.7262 12 h after dark 21.93665 21.1731 22.7002