This is a quick summary of the average data by month for a large number of cities as found in the publication The World Weather Guide, E A Pearce and C G Smith, Hutchinson and CO Publishers, 1984

  • Africa south of the Equator - July
  • Africa north of the Equator - January
  • Canada - January followed very closely by February
  • USA - January
  • Mexico - January and December
  • Central America - January
  • South America north of the Equator - January
  • South America south of the Equator - July
  • Asia - January
  • Japan - January
  • Australia - July
  • New Zealand - July
  • Europe - January