Well Feb 2014 was due to negative departures. I think we finished at -12.3?
This was due to SSW event that brought the PV to the great lakes.
https://en.wikipedia.org/wiki/Early_2014_North_American_cold_wave
February then proved to be the most brutal month of the season. A weak upper level jet over the Northern Pacific not only helped to keep the West Coast ridge intact, but likely played a role in supporting an exaggerated high latitude block over North America. This pattern was further locked in place by the displacement of the much misunderstood polar vortex which drifted south of James Bay for a period of several weeks. The very highly amplified pattern kept a near constant feed of frigid arctic air in place over our region, which plummeted our mercury to levels that averaged 15 degrees F below normal. This is extraordinary considering that the coldest weather of the year occurs during the second half of January and the first half of February, so to be that much below those ‘normal’ values is quite impressive.
The near unprecedented cold was accompanied by several storms that generated one of the snowiest months of the winter. Snowfall totals for the month of February were at least two feet above normal in most areas. It is also worth noting that while the colder, more southerly storm tracks generated higher snowfall amounts, it also kept our region from experiencing the usual number of high wind events.