condition mean min max Dawn 5.4 5.4 5.4 Morning 4.9 4.9 4.9 Noon 3.85 3.85 3.85 Dusk 8.75 8.75 8.75 Night 5.699999999999999 5.699999999999999 5.699999999999999 Midnight 6.85 6.85 6.85