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  (Source: tehrantimes.com)
The May 2011 to April 2012 heat wave bumped the last record-setting warm year out of the way, which was November 1999 to October 2000

The National Oceanic and Atmospheric Administration (NOAA) has found that the last 12 months have been a record-breaking time period for warm weather in the U.S.

According to the NOAA's National Climatic Data Center, the 12-month time period from May 2011 to April 2012 has been the warmest consecutive string of months since 1895, which is when weather records began.

Over the past year, the U.S. has had its second hottest summer, warmest March and fourth warmest winter on record. It was also discovered that April 2012 was the third warmest ever, with 332 locations in the U.S. experiencing their warmest April temperatures on record.

About 22 states in the U.S. experienced their warmest year over the last 12 months. Many of the states were in the Northeast and Upper Midwest United States.

Also, cities like Washington D.C., Atlanta, Boston, Buffalo, New York City, Detroit, Chicago, New Orleans, Philadelphia, Tampa and Nashville have encountered their warmest start to the calendar year 2012. Twenty-six states east of the Rocky Mountains have recorded the beginning of 2012 as their warmest start of the year yet, with the lower 48 states experiencing temperatures about 5.4 degrees Fahrenheit above average so far.

A few examples of record-breaking states include North Dakota, which has had temperatures 10.4 degrees above normal so far this year; Minnesota, with 9.6 degrees above normal; South Dakota, with 9 degrees over average; Wisconsin, with 8.6 degrees above normal, and Iowa, with 8.6 degrees over average.

According to the NOAA, the cause of the warm weather is a jet stream pattern that has locked the cold air in the high latitudes and created "heat domes" over the center of the lower 48 states. These domes have wandered east and west periodically.

The May 2011 to April 2012 heat wave bumped the last record-setting warm year out of the way, which was November 1999 to October 2000. The average temperature was 2.8 degrees F above average at that time.



Source: Slashdot



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so...
By The Imir of Groofunkistan on 5/10/2012 4:32:48 PM , Rating: 3
so, why the arbitrary 12 month period (May 2011 to April 2012)? Is this a standard 12 month period for measuring yearly temperatures?




RE: so...
By jbartabas on 5/10/2012 4:38:42 PM , Rating: 2
There is probably no better reason than for any other arbitrary 12 consecutive months.


RE: so...
By dgingerich on 5/10/2012 4:49:41 PM , Rating: 4
It still doesn't mean people are causing it. It was warmer than this during the dark ages (300-900AD). There were vineyards in Scotland in the early 900s, for crying out loud. We couldn't grow grapes for wine in London these days. There were sheep grazing in Greenland and large colonies of Vikings.


RE: so...
By Nfarce on 5/10/2012 5:05:44 PM , Rating: 2
Yeah but it's a lot easier to shove fascist and draconian government regulations and mandates down people's and corporation's throats when you whine that backyard grilling and driving an SUV causes polar bears to fall off ice burgs and large hurricanes to hit the US.


RE: so...
By borismkv on 5/10/2012 5:23:03 PM , Rating: 2
Polar Bears falling off icebergs is funny as hell, man. They should sell tickets to that.


RE: so...
By Reclaimer77 on 5/10/12, Rating: 0
"Paying an extra $500 for a computer in this environment -- same piece of hardware -- paying $500 more to get a logo on it? I think that's a more challenging proposition for the average person than it used to be." -- Steve Ballmer














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