condition mean min max 4 h after light 26.391 23.4676 29.3144 8 h after light 49.56465 49.217 49.9123 12 h after light 51.69135 50.6955 52.6872 4 h after dark 38.51645 36.8114 40.2215 8 h after dark 27.38965 26.9056 27.8737 12 h after dark 27.5867 27.039 28.1344