condition mean min max 4 h after light 2831.2219665000002 2452.304485 3210.139448 8 h after light 2927.7216825 2778.979522 3076.463843 12 h after light 2446.861793 2423.539749 2470.183837 4 h after dark 2396.6583419999997 2341.012199 2452.304485 8 h after dark 2150.3388004999997 1973.241884 2327.435717 12 h after dark 1751.193595 1751.193595 1751.193595