It has snowed at least once in Calgary by September 30

Created by minilodon on 2014-08-14; known on 2014-09-30; judged right by minilodon on 2014-09-09.

• minilodon estimated 80% on 2014-08-14
• tdhellma estimated 10% on 2014-08-14
• tdhellma said “sigh.” on 2014-09-08
• minilodon   judged this prediction right on 2014-09-09.