There's nothing wrong with GDP that a change of leadership at the top couldn't fix. I'll bet Caligula's favored horse Incitatus, whom the crazed Roman emperor wanted to install in the consulship, could have done better, that's how bad Obama has performed.
To date we've had five first quarters outside of recession under Obama and the average nominal GDP addition in the first quarter from the preceding fourth quarter has been just +0.60%. From coldest to warmest here the five are: 2014 (-0.20%), 2010 (+0.80%), 2011 (+0.1%), 2013 (+1.00%), 2012 (+1.1%). Incidentally, 2014 was the 10th coldest first quarter since 1946, but 2012 was the hottest, and Obama still couldn't pull out a decent performance from that advantage.
It's not the fault of the weather. It's Obama.
GDP measured in exactly the same way before Obama and going back to 1947 has averaged +2.3% in the first quarter, which means that under Obama GDP has lagged the average by 73.9%. In fact, Obama's record in winter is so bad that he's pulled down the long-term average by 0.2 from 2.3% to 2.1%.
But wait, it gets worse.
America actually posts better GDP when winters are colder, and poorer GDP when they are warmer.
The twelve warmest winters since 1946 have added just 1.5% to nominal GDP on average, but the twelve coldest added an average 2.7%.
For a president, and economists, to blame cold weather for poor economic performance shows a level of ignorance and intellectual laziness which is shameful.
America can do much better than Obama, and it will.