condition mean min max 4 h after light 1375.4 1375.4 1375.4 8 h after light 1917.5 1505.1 2329.9 12 h after light 1876.1999999999998 1536.3 2216.1 4 h after dark 2026.0 1703.7 2348.3 8 h after dark 2293.45 1688.1 2898.8 12 h after dark 1977.3 1345.9 2608.7