A La Nina seasonal pattern (cooler than average sea surface temperatures in the Pacific Ocean) historically produces warmer and drier winters for North Georgia, but residents may have to get used to the recent cold spells.
January Outlook After a cold and snowy December for North Georgia, there is a change in the outlook for January, according to Channel 2 meteorologist David Chandley.
Chandley said a polar vortex (L on the map) setting up over Canada will help usher in arctic air every four to five days. He said a large area of high pressure (H on the map) will develop over the Midwest, aiding in the formation of frigid temperatures.
This month, temperatures are forecasted to be below the monthly averages of 52 for highs and 33 for lows. Precipitation is still expected to be below the average, but cold air increases the risk for snow and ice.
January Temps In light of the typically temperatures associated with La Nina, the 2010-2011 season may well be an anomaly of the statistics.