NOAA and NCDC have updated many of their weather/climate trend reports for end of 2014...as observed in the recent past, severe weather trends have not seen the "expert" predicted increase from CO2, other greenhouse gases and, of course, global warming...the climate-doomsday cult talk from political-persons, mainstream reporters/pundits and on-the-dole bureaucrats remains without any empirical merit.....
One means to view the lack of climate extremes is to examine an interesting dataset that NOAA/NCDC maintains - the monthly % of U.S. that is either very wet and/or very dry. It has recently been updated through 2014.
As can be seen from this chart, very wet and very dry U.S. conditions fluctuate dramatically. Yet, some 45 years after 1970, the 5-year averages by the end of 2014 are close to the values decades before.
The huge increase of atmospheric CO2 levels from human emissions over this time obviously has had no impact (e.g. correlations of either climate condition with CO2 doesn't even reach the ±0.03 yawn mark).
This NOAA dataset extends all the way back to 1895; and the end result is its being, on average, within the same narrow range over the last century.
Despite the proclamations by those politicians and elites who are readily influenced by moneyed special interests, there is yet to be any empirical scientific evidence that CO2 is a causal agent producing extreme climate change or severe weather events.
More of those stubborn facts: Historical severe weather incident list and CO2-greenhouse gas charts.