“For the first year since 1993, there were more daily record lows than daily highs that were either tied or set in 2013,” reported Weather Channel meteorologist Guy Walton, who keeps track of the data from the climate center.
Through Dec. 28, there have been 11,852 daily record lows in 2013, compared with 10,073 daily record highs, according to Walton.
A “daily” record occurs when a specific location sets a record high or low temperature for a particular day; other types of records include monthly and all-time.
Walton said that an unusually cold spring was the main factor in the “cool” 2013.
http://www.usatoday.com/story/weather/2013/12/31/record-cold-temperatures/4264237/
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It is settled!
One year does not a trend make. Look at the overall evidence. And then just use common sense. Humans put so much crap into the environment it MUST be affecting it.