Possible Clues:

• Atmospheric conditions
• Weather in general
• I may get married after a century and a half; it all depends on the weather
• The regular weather conditions of a region
• After a century and a half I get married, weather permitting
• Depending on the weather I may get married after a century and a half
• It depends on the weather if I get married at last
• It may be fine if I get married after a century and a half
• Say what mountaineer has to do to mountain, given weather
• Came lit (anag.)