Pyongyang has a hot-summer humid continental climate (Köppen: ''Dwa''), featuring warm to hot, humid summers and cold, dry winters. Cold, dry winds can blow from Siberia in winter, making conditions very cold; the low temperature is usually below freezing between November and early March, although the average daytime high is at least a few degrees above freezing in every month except January. The winter is generally much drier than summer, with snow falling for 37 days on average.