To snap the global temperature ( Kelvin) map every month from AUGUST 2013 to Aug’ 2014 and note how the spatial temperature pattern changes annually.
Here we go.. One of 12
AUGUST 2013

source
http://www.ospo.noaa.gov/data/mspps/np_images/amsua_ts_des.gif
OCTOBER 2013

Notice the coldest temperatures are in the Antartic for the month of AUGUST.
AUGUST is the last month of winter in the southern hemisphere.
To convert KELVIN to CELSIUS
http://www.metric-conversions.org/temperature/kelvin-to-celsius.htm
From the above map
In August 2013 .The North African latitudes are recording some of the hottest temperatures in the orange band around ~ 300 Kelvin. The converter in the above link estimates the temperature in many parts of nth Africa as 26.85 deg C
That seems quite low?
However shift up only 10 deg kelvin to 310 K and we have a different story!!
The temperature is now 36.85 deg C!! Much hotter.
This infers that the map posted above has a low resolution. It is designed to just roughly show the temperature variation across the globe which is suitable for our purposes of this study. Just looking at general seasonal trends
WHY DOES THE GLOBAL TEMPERATURE SPATIAL PATTERN CHANGE ANNUALLY ?

An explanation from Wikopedia
http://en.wikipedia.org/wiki/Season
“The seasons result from the Earth’s axis being tilted to its orbital plane; it deviates by an angle of approximately 23.5 degrees.”
TIME SERIES GRAPH .. COMPARING the NORTHERN and SOUTHERN HEMISPHERE ANNUAL MONTHLY TEMPERATURE

