condition mean min max 4 h after light 853.2 853.2 853.2 8 h after light 946.1500000000001 808.6 1083.7 12 h after light 1254.5 1102.8 1406.2 4 h after dark 1401.3000000000002 1375.9 1426.7 8 h after dark 1100.55 960.4 1240.7 12 h after dark 861.7 795.2 928.2