condition mean min max 4 h after light 6944.7 6944.7 6944.7 8 h after light 7029.05 6791.8 7266.3 12 h after light 5911.6 5253.7 6569.5 4 h after dark 5674.450000000001 4609.8 6739.1 8 h after dark 6856.25 6274.3 7438.2 12 h after dark 7661.0 6596.7 8725.3