Cold April

A few days ago I did some basic math on the average temperature vs. actual temperature in April. It looks like San Diego was about 1.6 degrees cooler than the average (and this is using Weather.com's stats no less). Today I came across this article from NOAA. All I know is that the water is cold here and the air temperature is cold, too. I'm suspecting that the month of May will go this route, too. How is it that people are still thinking that humans are the key factor in climate change? Seems to me that the oceans and the sun play the noticeable roles here. Will algore ever learn?