Temperature Highlights - October 2009
The average October temperature of 50.8°F was 4.0°F below the 20th Century average and ranked as the 3rd coolest based on preliminary data.
For the nation as a whole, it was the third coolest October on record. The month was marked by an active weather pattern that reinforced unseasonably cold air behind a series of cold fronts. Temperatures were below normal in eight of the nation's nine climate regions, and of the nine, five were much below normal. Only the Southeast climate region had near normal temperatures for October.
Statewide temperatures coincided with the regional values as all but six states had below normal temperatures. Oklahoma had its coolest October on record and ten other states had their top five coolest such months.
Florida was the only state to have an above normal temperature average in October. It was the sixth consecutive month that the Florida's temperature was above normal, resulting in the third warmest such period (May-October).
The three-month period (August-October) was the coolest on record for three states: Nebraska, Kansas, and Oklahoma. Five other states had top five cool periods: Missouri (2nd), Iowa (3rd) , Arkansas (5th) , Illinois (5th) and South Dakota (5th) . Every climate division in Kansas (nine) and Nebraska (eight) recorded a record cool such period.
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