In the December issue of Psychology Today (fast becoming my favorite magazine), Matthew Hutson shares unusual and revealing information about birth months and personality, saying, “Astrology may be bullocks, but your month of birth still guides your fate.”

No one is sure why birth dates affect mental traits, but environmental effects during the third trimester (weather, amount of daylight, seasonal variation in the mother’s diet) are often blamed. Here’s what you birth date might portend.

And if such things as “people born in summer are more outgoing, curious, and imaginative, and less neurotic” are true, knowing the birth date of your mate — or potential mate — might give you some clues too. Click to enlarge and read the scan.