If it will make you feel any better, one year there was six inches of snow just east of town (Rochester NY) on graduation day (May 9 for the undergrads that year). They were hear scurrying around the Quad, telling their parents "I told you it snowed here all the time, you never believed me". Now remember, you may be used to this, but us Southern NY folk aren't!
BC has had some unusual weather as well. I know it snowed up in Fort St. John and also in Alberta. We on the other hand on the coast had horrible rain for days on end, now it's like summer again!! Except for horrific soup-like fog in the morning, the afternoons have been splendid. Don't know how long our good weather will last.