Mean Difference

Hot Summers And Cold Winters

In any given year, it is likely that the hottest temperatures in the region will be somewhere out in central South Dakota.  The coldest temperatures of any winter are most likely to occur somewhere in northern Minnesota. But for consistency, the Red River Valley has a greater difference between the heat of summer and the cold…
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Blue sky begins to break through the clouds over Arctic Ocean ice Sept. 9, 2009.

Thoughts On Upcoming Winter

The past two winters have been mild in our region.  This winter is likely to be colder but there is potential for a very cold winter. Arctic sea ice normally undergoes extensive melting in the summer, usually reaching a minimum coverage in September.  Due to a mild winter and spring, this year’s ice coverage was…
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pole

South Pole Cold Snap

It is winter at the bottom of the world and the Amundson-Scott station at the pole is in its fourth month of its annual six months of darkness.  For much of July, daily high temperatures have ranged from minus 63 to minus 98 with lows ranging from minus 67 to minus 99.  With a steady…
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lightning

Lightning Strikes Are Not All The Same

The lightning strike Tuesday evening that hit a car and gave a minor shock to a woman inside was likely a positive strike.  About 95 per cent of lightning strikes are negative.  That is, they deliver a negative charge to the ground.  Around five per cent of cloud to ground lightning is positive and these…
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gauge

More Heat Likely In August

Through July 25, the temperature sensor at Hector Airport, the official gauge for Fargo Moorhead, has registered a temperature of 90 degrees or higher a total of eight days this year.  It happened one day in May, which is about average; three days in June, which is above average; and three more in July, which…
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