It requires less energy to warm a warm thing than warm a cool thing.
We are at historically high levels of TSI even though those levels are lower than they were 40 years ago.
Hoever, the TSI in Indiana is ALWAYS less in August than in June, but the temperature is ALWAYS higher.
There can be and is a lagging effect of climate that extends year to year as is evidenced by the decrease of Ice in the Arctic.
Don't be fooled by me. I know a couple big words, but am not in any way a scientist.
I was a proponent of the AGW stuff in about 2002 or 3, don't recall exactly, and someone told me on the boards provided by my ISP that the whole extent of warming since the year 0 was about 0.7 degrees. I was convinced that this was incorrect and so set about proving the poster wrong. I proved myself wrong.
Now I'm always amazed at how people simply close their eyes, ears and mind to everything that is being put out there in order to maintain their belief system.