GWT Clasification | Months |
NEc | Octuber to December |
Nc | April & July |
Na | April & May |
NEa | April & June |
Ec | July to September |
Ea | January, February & August |
SEc | March, July & September |
NWc | Octuber to December |
Sc | August to Octuber |
NWa | January & February |
SEa | February & September |
Wc | August, September & December |
SWc | March, August & September |
Sa | May & July |
Wa | February & July |
SWa | May, July & Octuber |