Warmer than normal 65% of the La Nina Winters.
Cooler than normal 35% of La Nina Winters.
- Weak La Nina is even chances.
- Moderate La Nina is most likely to bring colder temperatures.
This is total precipitation for rain and snow.
Overall there is an even split. But this chart can be confusing. A Moderate La Nina has had 4 of 6 times been below average, but the chart has the largest total. This is because when there is an above average pattern, it can be WAY ABOVE AVERAGE to offset the total comparison.
If you have Faith in the Flakes, this might not be what you want to see. But there is a silver lining. While most years show below normal snow, there have been some big exceptions.
- 1996- January Blizzard was in a La Nina year. This also accounted for most of the snow that winter.
- 2000 – Most of snowfall that winter was in a 10 day period between January 20 and 30. This included the ‘surprise’ Nor’easter that brought 14.9″ of snow to BWI on January 25.
If you don’t want snow, La Nina historically has been your friend.
But if you have FITF, all is not lost. There have been years with big snow storms during a La Nina. Also, there are other elements at play. That is what I explore and try to fit together. This is not scientific law, only one theory. Correlation is NOT causation! It is possible that this winter may have a new combination of global influence to bring us something unprecedented. Besides, these numbers above are only a sample of 77 years. There may have been more supportive data in prior years.