Walter Russell Mead explains the difference as he notes  that we are very close to breaking the record for longest period in recorded US weather history without a Category 3 hurricane hitting the mainland. An excerpt:
For those of you who are confused, let me remind you: the only meteorological phenomena that count are the ones that confirm the climate alarmist case. It doesn’t matter what it is — drought, flood, blizzard, heat wave — if it can be made to support fear about the climate, it matters and it needs to be thoroughly analyzed and widely publicized.
Meteorological phenomena that, to the unsophisticated, might appear to undermine the case that WE ARE ALL GOING TO DIE if we don’t immediately pass a stringent carbon treaty, are meaningless and should be ignored.
A spate of hurricanes is climate; an absence of big storms isweather. The absence of any major hurricanes for six years is a meaningless phenomenon; should a couple of big ones hit in any given year, then every editorial page in the country will fill with hand wringing, dire warning and I told you so.