Low PV Power

So, it’s like 28° out, I have full sun on the 14 panel array, 6.5kw.
I’m noticing as of now it’s only producing 4.2kw, same for last few days, this time in mid March, it was hitting 5.9 and 6.2 on a sunny day, is this expected? Too hot?

Domo My understanding is that the solar panel data sheets describe how power is affected for every degreee centigrade above 25c. From my panels I should expect to lose0.29% of power output for each 1c increase, so that is indeed a possible cause for reduced output.

Temperature and humidity. Humidity is just clouds that you can't see.

Thanks both, intresting