I have the same style of panels. Seems about right to me.
Unisolar thin film amorphous panels make good power from early until late. Pretty much everyone on the globe has about a 12 hour day right now, being about the spring/fall solstice.
I can check but I think I am making similar but slightly more amp hours and watt hours per watt of panel right now, but mine are new, frequently cleaned, and I am just south of 30 degrees latitude, so that is to be expected. I need a load to run against my system to see full output since the batteries are just coasting at full charge.
Jim