Here is the monthly update of the seasonal forecast for Hilton Head.
a weak El Nino might be developing, but a strong El Nino event is quite unlikely for this winter. Colder than average temperatures are forecasted at the world this winter, but not at HHI. Spring is looking good! Above average temperature are also forecasted for the first half of the summer of 2013.
So here is my temperature forecast for 2013 in Hilton Head (issued Nov. 20th, 2012):
Jan-Feb: average
Mar-July: warmer than average
Aug-Dec: average
These are **average** forecasted conditions for each month, (compared to typical temperature for the month). Even when the forecast is correct, weather on individual days can be quite different from the average.
More details here:
http://www.nws.noaa.gov/climate/outlook.php?wfo=chs&site=384169